Answers
Answer:
True if by rifting you mean continental rift. If not idk.
Related Questions
Arrange the following in order of increasing bond strength of the carbon oxygen bond: Group of answer choices Carbon monoxide < carbon dioxide < carbonate ion Carbonate ion < carbon monoxide < carbon dioxide Carbon dioxide < carbon monoxide < carbonate ion Carbon dioxide < carbonate ion < carbon monoxide carbonate ion < carbon dioxide < carbon monoxide Carbon monoxide < carbonate ion < carbon dioxide Carbonate ion < carbon monoxide < carbon dioxide
Answers
Answer:
carbonate ion < carbon dioxide < carbon monoxide
Explanation:
Bond strength depends on the bond order of a bond. The higher the bond order, the greater the bond strength since shorter bonds are stronger than longer bonds.
The carbonate ion has a bond order of 1.33, carbon dioxide has a bond order of 2 while carbon monoxide has a bond order of 3.
Since the compound with the highest C-O bond order has the strongest C-O bond, then carbon monoxide possesses the strongest C-O bond.
Answer: carbonate ion < carbon dioxide < carbon monoxide
Explanation: Carbon dioxide (chemical formula CO2) is a chemical compound made up of molecules that each have one carbon atom covalently double bonded to two oxygen atoms. It is found in the gas state at room temperature, and as the source of available carbon in the carbon cycle, atmospheric CO2 is the primary carbon source for life on Earth. In the air, carbon dioxide is transparent to visible light but absorbs infrared radiation, acting as a greenhouse gas. Carbon dioxide is soluble in water and is found in groundwater, lakes, ice caps, and seawater. When carbon dioxide dissolves in water, it forms carbonate and mainly bicarbonate (HCO−3), which causes ocean acidification as atmospheric CO2 levels increase. Bond strength depends on the bond order of a bond. The higher the bond order, the greater the bond strength since shorter bonds are stronger than longer bonds. The carbonate ion has a bond order of 1.33, carbon dioxide has a bond order of 2 while carbon monoxide has a bond order of 3. Since the compound with the highest C-O bond order has the strongest C-O bond, then carbon monoxide possesses the strongest C-O bond. It is a trace gas in Earth's atmosphere at 421 parts per million (ppm), or about 0.04% by volume (as of May 2022), having risen from pre-industrial levels of 280 ppm. Burning fossil fuels is the primary cause of these increased CO2 concentrations and also the primary cause of climate change.
A student writes Ba?- as the symbol for a barium ion. Explain what is incorrect about the symbol.
Answers
Answer:
ion is missing
Explanation:
Diamond has a density of 3.513 g/cm³. The mass of diamonds is often measured in "carats," where 1 carat equals 0.200
g. What is the volume (in cubic centimeters) of a 1.86-carat diamond?
Answers
The volume of a 1.86-carat diamond in cubic centimeters is 0.106 cm³
Given,
The density of a diamond is 3.513 g/cm³.
We have to find out the volume of a 1.86-carat diamond in cubic centimeters.
Convert the units of the diamond from carat to grams, we have:
(1.86 carats) x (0.200 g / 1 carat) = 0.372 g
The volume of the diamond is obtained by dividing the mass by the density, therefore using the formula, we get
v = m / d
v = 0.372 g / (3.51 g/cm³) = 0.1059 cm³
or, v = 0.106 cm³ (approx)
Therefore, the volume of a 1.86-carat diamond is approximately 0.106 cm³.
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You Previously Determined that a particular sealed container holds 0.261 mol CO2 gas. What mass of NaHCO3 is needed to generate the CO2?
Answers
The mass of NaHCO₃ needed to generate 0.261 mole of CO₂ is 21.93 grams
How do i determine the mass of NaHCO₃ needed?First, we shall obtain the number of mole of NaHCO₃ that reacted. Details below:
NaHCO₃ + HCl -> NaCl + H₂O + CO₂
From the balanced equation above,
1 mole of CO₂ was obtained from 1 mole of NaHCO₃
Therefore,
0.261 mole of CO₂ will also be obtain from 0.261 mole of NaHCO₃
Finally, we shall detemine the mass of NaHCO₃ needed. Details below:
Molar mass of NaHCO₃ = 84.01 g/mol Mole of NaHCO₃ = 0.261 moleMass of NaHCO₃ = ?Mole = mass / molar mass
0.261 = Mass of NaHCO₃ / 84.01
Cross multiply
Mass of NaHCO₃ = 0.261 × 84.01
Mass of NaHCO₃ = 21.93 grams
Thus, we can conclude that the mass of NaHCO₃ needed is 21.93 grams
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What is radioactive dating in chemistry?
PLEASE HELP!!!
Answers
The general idea is that elements exist naturally as a combination of isotopes. Some isotopes are stable while others decay radioactively. The half-life of a radioactive isotope is the time required to reduce the initial quantity of the isotope by 50% through the process of radioactive decay.
Carbon 14 dating works this way. A tree growing in the past would have an equilibrium mixture of C-12 and C-14 atoms in proportions consistent with living matter today. We know this value.
When that tree dies, it no longer accumulates new carbon atoms from carbon dioxide in the atmosphere (through photosynthesis). At this point, the proportion of C-14 in the organic matter that was the tree decreases due to the decay of C-14 to an isotope of nitrogen.
When we dig up the remnants of the tree today, we can measure the proportion of C-14 to C-12 and see how much it has been reduced. From this we can calculate backwards using the half life of C-14 (5730 years) to estimate how old the remains of the tree are.
question is in image
Answers
The compound CH₃OCHO is known as methyl glyoxal or pyruvaldehyde. Its molecular formula is C₃H₄O₂.
What smell would this compound possibly have?Methyl glyoxal or pyruvaldehyde is known to have a pungent odor. It has been described as having a sharp, acrid smell that is similar to that of formaldehyde or acrolein. The odor of pyruvaldehyde can be irritating to the eyes, nose, and throat, and it can cause respiratory problems if inhaled in large quantities. The odor of methyl glyoxal or pyruvaldehyde has been described in several chemical and safety databases.
One of the most important factors that predict a molecule's smell is the presence of functional groups, which are groups of atoms that impart characteristic chemical and physical properties to a molecule. The pungent odor of methyl glyoxal is thought to be associated with its carbonyl functional group (C=O), which is a common feature of many aldehydes and ketones. In the case of methyl glyoxal, the carbonyl group is located at the center of the molecule, and it is flanked by two methyl groups and a hydroxyl group, which likely contribute to the molecule's overall odor.
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Which represents a balanced chemical equation?
Answers
Answer:
C
Explanation:
Reactant part has 2 Mg and 2 O, product part has 2 Mg and 2 O
Why is the atomic theory a theory and not a law?
10 Points)
A theory is the best possible explanation based on all existing evidence.
A theory is a pattern in nature.
O A theory does not change.
O A theory is more important than a law.
Answers
Answer: A) A theory is the best possible explanation based on all existing evidence
A law in physics and chemistry is a description of what is going on. For instance, newton's law of motion helps us find out an objects acceleration if we know its mass and the force applied. The theory of gravity on the other hand is the best guess we make as to why objects with mass are attracted to one another.
Theories change over time if new evidence is found that contradicts the old theory. Saying "a theory is more important than a law" is subjective, and I would argue that both are equally important in their own way.
The atomic theory a theory is the best possible explanation based on all existing evidence. The correct option is A.
What is a theory?The word theory renowned as to an untested hunch or one can say a guess with not having a supporting evidence.
A theory, has nearly the opposite implications for scientists. A theory is a well-supported explanation of an innate phenomenon that can encompass laws, hypotheses, along with facts.
Theories are developed to elaborate, predict, as well as comprehend phenomena, also to challenge and extend existing understanding within the constraints of critical boundary assumptions.
A theory does not become a scientific law as new or better evidence accumulates.
The theories are explanations, as well as laws are patterns located in large amounts of data that are frequently expressed as an equation. A theory will always be a theory in all aspect, and a law will always be a law.
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Suppose that 0.84 g of water at 25 °C condenses on the surface of a 51 g block of aluminum that is initially at 25 °C. If the heat released during condensation goes only toward heating the metal, what is the final temperature (in °C) of the metal block? (The specific heat capacity of aluminum is 0.903 J/g °C; enthalpy of vaporization of water is 44.0kJ/mol at at 25 °C. Also, remember that the heat reuired to increase the temperature of a substance by ΔT is given as Q=mCsΔT, where m is the mass of the substance, and Cs its specific heat).
Answers
The final temperature of the metal block : t=69.5 °C
Further explanationGiven
0.84 g water
Aluminum block = 51 g
Required
The final temperature
Solution
Enthalpy of vaporization of water is 44.0kJ/mol = 2.44 kJ/g=2440 J/g
Q out=Q in
Q releases = Q absorbed
Q water = Q Aluminum
m.Lf = m.cs.ΔT
0.84 x 2440 J/g = 51 x 0.903 J/g C x (t-25)
2049.6=46.053(t-25)
t=69.5 °C
.
a sample of cobalt (specific heat of Co=0.418J/G C )at 100.0 C is dropped into a calorimeter containing 500.0 mL of water at 21.1 C. the final temperature of the water/cobalt mixture was 67.1 C. what was the mass of the sample of cobalt? ( Hint 1 mL of water has a mass of 1 gram)
Answers
Answer:
\(m_{Co}=6998g=7.0kg\)
Explanation:
Hello there!
In this case, according to this equilibrium temperature problem, we can set up the following equation to relate the mass, specific heat and temperature change:
\(Q_{Co}=-Q_{w}\\\\m_{Co}C_{Co}(T_f-T_{Co})=-m_{w}C_{w}(T_f-T_{w})\)
Thus, we solve for the mass of cobalt as shown below:
\(m_{Co}=\frac{-m_{w}C_{w}(T_f-T_{w})}{C_{Co}(T_f-T_{Co})} \\\\m_{Co}=\frac{-500.00g*4.184J/g\°C(67.1\°C-21.1\°C)}{0.418J/g\°C(67.1\°C-100\°C)} \\\\m_{Co}=6998g=7.0kg\)
Best regards!
If 2.35 L hydrogen gas react with nitrogen gas to form nitrogen trihydride, how many grams of nitrogen will be needed for the reaction to be completed?
0.98 g
0.49 g
21.93 g
1.47 g
Answers
Answer:
1.47 g
Explanation:
An early arrangement of the then known elements was proposed by a British scientist John Newlands, which he called the Law of Octaves. Like other scientists at the time, Newlands arranged the elements in order of increasing atomic mass and noted that every eighth element had similar physical/chemical properties. In the modern Periodic Table, which of the following represents the last pair of elements for which Newlands' Law of Octaves would hold true?
Answers
what is sulphur mnq///oxqh///pvr joīń
Answers
Explanation:
It found a small but statistically significant association between reduced health care spending and increased death rates among children less than a year old, specifically that a10% reduction in health care spending led to an increase in infant mortality of 0.5% for boys and 0.4% for girls.
What causes radiation?
Answers
Answer:
It can come from unstable atoms that undergo radioactive decay, or it can be produced by machines. Radiation travels from its source in the form of energy waves or energized particles. There are different forms of radiation and they have different properties and effects
Your little sister asks you a scientific question: "Does chocolate milk come from brown cows?" In order to answer the question, you decide to form a hypothesis.
Explain whether or not the following statements are effective hypotheses.
i. Brown cows produce chocolate milk.
ii. Brown cows never produce chocolate milk.
iii. Brown cows produce white milk.
Answers
A hypothesis is a proposed explanation or prediction based on limited evidence or observations, which can be tested through further investigation or experimentation. It should be specific, testable, and based on existing knowledge.
Now, let's evaluate each statement as a hypothesis:Brown cows produce chocolate milk.This statement can be considered an effective hypothesis as it proposes a relationship between the color of cows and the color of milk they produce. It is specific and testable, as one could observe and analyze the milk produced by brown cows to see if it is indeed chocolate milk. However, based on existing knowledge, we can confidently say that this hypothesis is not accurate, as the color of a cow does not determine the color of the milk it produces.Brown cows never produce chocolate milk.This statement can also be considered an effective hypothesis because it makes a specific claim that can be tested. However, based on existing knowledge, we can say that this hypothesis is not accurate. While the color of a cow does not determine the color of the milk, it is possible for chocolate milk to be produced by adding chocolate syrup or cocoa powder to regular white milk.Brown cows produce white milk.This statement is not an effective hypothesis as it is a general statement that aligns with existing knowledge. It does not propose any specific relationship or prediction to be tested. In the context of this question, the statement is not accurate as milk produced by cows is typically white, regardless of their coat color.For such more question on hypothesis
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Which of the following nonmetals can conduct electricity relatively well
sulfur
iodine
carbon
bromine
Answers
Carbon is a nonmetal that can conduct electricity relatively well. Therefore, option (D) is correct.
What is carbon?Carbon is an element that belongs to the 14th period in the modern periodic table. The atomic number and atomic mass of carbon are 6 and 12.01 g/mol. Carbon is a nonmetal and tetravalent as it contains 4 electrons in its valence shell.
Carbon is short-lived but it can be stabilized by its allotropic forms. Carbon has three allotropes which are diamond, graphite, and fullerene. The properties of allotropes of carbon are different because of the different arrangements of carbon atoms.
In graphite, the carbon atoms are arranged in layers and are joined together. The links between the layers of the carbon atoms are weak but links between the carbon atoms in the layer are strong. The layers are slippery in nature which makes graphite soft.
Graphite is the only nonmetal that can conduct electricity and is a good conductor of electricity.
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Which choice gives the correctly
balanced equation for this reaction?
AgNO3(aq) + Na₂CO3(aq) →
Ag₂CO3(s) + NaNO3(aq)
Answers
The reaction's chemically balanced equation is as follows:3CCl4 + 3N2 + 6H2 = 3CH4 + 3 N2Cl4
Which option provides the reaction's properly balanced equation?The reaction's chemically balanced equation is as follows:3CCl4 + 3N2 + 6H2 = 3CH4 + 3 N2Cl4A chemical reaction that has the same number of moles in the reactant and product sides is said to have a balanced chemical equation.
Determining that the chemical reaction is a balanced chemical equation, it follows the law of conservation of mass.
The missing image, which is included below, shows what the picture represents:
The side that reacts:
Three molecules each of CH4 and N2Cl4
The component side:
6 molecules of H2, 3 molecules each of CCl4, N2, and 3.
Consequently, the following is the reaction's balanced chemical equation:
3CCl4 + 3N2 + 6H2 = 3CH4 + 3 N2Cl4
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When 7.59 grams of sodium hydroxide (NaOH) are dissolved in 80.0 grams of water at 25.0 °C in an insulated container, the temperature of the water increases to 48.0 °C. Assuming that the specific heat of the solution is 4.184 J/(g °C) and that no heat is gained or lost by the container, what is the ∆H of solution of NaOH in kJ/mol?
Answers
The ∆H of solution of NaOH is 46.8 kJ/mol.
First, we need to calculate the amount of heat absorbed by the solution:
q = m × c × ∆T
where q is the heat absorbed (in Joules), m is the mass of the solution (in grams), c is the specific heat capacity of the solution (in J/(g °C)), and ∆T is the change in temperature (in °C).
In this case, the mass of the solution is the sum of the mass of NaOH and the mass of water:
m = 7.59 g + 80.0 g = 87.59 g
The change in temperature is:
∆T = 48.0 °C - 25.0 °C = 23.0 °C
Substituting the values, we get:
q = 87.59 g × 4.184 J/(g °C) × 23.0 °C = 8,878 J
Next, we need to convert the heat absorbed into the enthalpy change of solution (∆H). The enthalpy change of solution is the heat absorbed per mole of solute. The number of moles of NaOH is:
n = m/M
where M is the molar mass of NaOH, which is 40.00 g/mol.
n = 7.59 g / 40.00 g/mol = 0.1898 mol
Therefore, the enthalpy change of solution is:
∆H = q/n = 8,878 J / 0.1898 mol = 46,780 J/mol = 46.78 kJ/mol
The H of a NaOH solution, rounded to three significant numbers, is 46.8 kJ/mol.
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A glass dropper delivers liquid so that 25 drops equal 1.00 mL. How many milliliters are in 37 drops?
Answers
Help pls i really need help
Answers
Answer: I think it's 1
Explanation: Potential energy means stored energy . In Position 1 it's not moving the energy is being stored. Hope that helps.
10. When dissolved in water, most Group 1 metal salts can be described as
strong electrolytes.
strong acids.
weak electrolytes.
A
B
C
D
non-electrolytes.
(1)
Answers
When dissolved in water, most Group 1 metal salts can be described as strong electrolytes.
When Group 1 metal salts are dissolved in water, they can be described as strong electrolytes. This is because Group 1 metals, such as lithium (Li), sodium (Na), potassium (K), and so on, readily lose their outermost valence electron to form positive ions (cations). These cations then dissociate completely in water, separating from the anions to which they were originally bonded.
The dissociation of Group 1 metal salts in water results in the formation of positively charged metal ions and negatively charged non-metal ions (anions). These ions are free to move and conduct electric current, making the solution a good conductor of electricity. The complete dissociation of Group 1 metal salts in water and the presence of freely moving ions make them strong electrolytes.
Strong electrolytes are substances that ionize completely or almost completely in solution, producing a high concentration of ions. This is in contrast to weak electrolytes, which only partially ionize and produce a lower concentration of ions.
In summary, when Group 1 metal salts are dissolved in water, they form strong electrolytes due to their ability to dissociate completely into ions, leading to a high concentration of freely moving ions in the solution, thus enabling efficient electrical conductivity.
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a) Calculate the molar mass of ethanol, C2H5OH and water, H20.
C2H5OH =
H2O =
I
Answers
Answer:
1-46
2-18
Explanation:
c=12 H=1 O=16
ethanol (12×2)+(6×1)+(16)=46
water (2×1)+(16)=18
Fill in the missing coefficient to indicate the number of water molecules produced
by the reaction:
12 H₂ + 60₂
_H₂O
-
Answers
Answer:
si la aplicación nos ayuda mucho para estudiar
Gravity creates stars, planets, or black holes through a process called __________?
Question 2 options:
spiral matter
accretion
intertwining
fusion
Answers
Answer:
Accretion
the process of growth or increase, typically by the gradual accumulation of additional layers or matter.
had the power to make appointments to religious positions, approve the construction of churches, permit the extension of mission activities, and determine which religious order would work in a particular area.
Answers
Imperial Spanish Crown would have the authority to assign people to posts in the church, give its consent for churches to be built, and allow missionary activity to continue.
The Spanish crown is missing.The Royal Palace downtown Madrid is home to the crown and scepter of something like the National Heritage Imperial Collections, which date first from reigns of Carlos II through Carlos III. The genuine heirs of the old dynasty's successors will receive the Spanish Crown.
When did Spain's monarchy end?Amadeo I of Spain, an Italian prince, won the election and was crowned king. He was forced to resign, though, in 1873, after three years. We may claim that up through 1873, the year that the First Spanish Republican must have been founded, the monarchy ruled Spain.
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There are three states of matter: solid, liquid, and gas. is this true or false
Answers
Answer:
true
Explanation:
Solid, liquid and gases are the only three States of matter
Aqueous aluminium bromide and solid zinc are formed by the reaction of solid aluminum and aqueous zinc bromide. Write a balanced chemical equation for this reaction.
Answers
Answer:
3 ZnBr2(aq) + 2Al (s) ====>2AlBr3 (aq) + 3 Zn(s),
Soap chemical name and chemical formula
plsss help
Answers
Answer:
the chemical name for soap is a lot, for example there is Sodium Talowate, Sodium Palmate, and even Sodium Cocoate, but there is more
Explanation:
the chemical formula for it is RCOO-Na+ it has 12 - 18 carbon atoms.
What happens to the amount of solution when we add food colour to it?
Answers
Answer:
We need more? What else is in the question? This is unanswerable.
Explanation:
Health Science
1. Structural Levels of the body
a. Characteristics of Living Things
b. Cell Specialization
2. Skeletal and Muscular System
a. The Skeletal System
b. The Muscular System
3. Food and Nutrition
a. Food Pyramid
4. Digestive System
a. Enzymes
5. Circulatory System
a. Circulation
b. Heart
c. Blood Vessels
6. Respiratory System
a. Respiration
b. Breathing
c. The movement of Oxygen
7. Excretion
a. Excretory Organs
8. Nervous System
a. Nerve Cells
b. The Brain
Answers
Answer:
Explanation:
Structural Levels of the body:
a. Characteristics of Living Things: Living things exhibit certain characteristics such as the ability to grow, reproduce, respond to stimuli, and maintain homeostasis.
b. Cell Specialization: Cells in the body are specialized to perform different functions such as muscle cells for movement, nerve cells for communication, and red blood cells for carrying oxygen.
Skeletal and Muscular System:
a. The Skeletal System: The skeletal system provides support, protection, and movement for the body. It is composed of bones, cartilage, and ligaments.
b. The Muscular System: The muscular system allows movement of the body and helps in maintaining posture. It is composed of muscles, tendons, and ligaments.
Food and Nutrition:
a. Food Pyramid: The food pyramid is a guide for healthy eating that emphasizes the importance of a balanced diet including fruits, vegetables, grains, protein, and dairy.
Digestive System:
a. Enzymes: Enzymes are proteins that help in breaking down food into simpler forms for absorption in the body. They are produced by different organs in the digestive system such as the pancreas, stomach, and small intestine.
Circulatory System:
a. Circulation: The circulatory system is responsible for the transport of blood and nutrients throughout the body. It consists of the heart, blood vessels, and blood.
b. Heart: The heart is a muscular organ that pumps blood to different parts of the body.
c. Blood Vessels: Blood vessels include arteries, veins, and capillaries that transport blood to and from the heart.
Respiratory System:
a. Respiration: Respiration is the process of inhaling oxygen and exhaling carbon dioxide. The respiratory system is responsible for this process and includes the nose, trachea, bronchi, and lungs.