oxaloacetate → ________ spell out the full name of the compound.

The mass in grams of butane at standard room temperature is 53.21 grams.

The gram of an organic substance at room temperature can be determined by using the ideal gas equation which can be expressed as:

PV = nRT

1 × 22.4 L = n × (0.0821 atm*L/mol*K×  298 K)

n = 22.4/24.4658 moles

n = 0.91556 moles

Recall that:

mass of butane = 0.91556 moles × 58.12 g/mole

mass of butane = 53.21 grams

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Answer:

Light bulb gives light energy which is usefull

Answer:

(c) light energy

Explanation:

As bulb is used for giving light and hence the energy that it gives is light energy.

Liquid food oil is typically derived from plant sources such as soybean, rapeseed (canola), corn, cottonseed, sunflower, and peanut, among others. In this case, the answer is letter D:

it contains primarily unsaturated fatty acids.What is liquid food oil?Liquid food oil is a type of fat that remains liquid at room temperature. As opposed to solid fats such as butter or lard,

liquid fats are commonly derived from plant sources such as soybean, rapeseed (canola), corn, cottonseed, sunflower, and peanut, among others.Oils that are liquid at room temperature include various types of vegetable oils, such as soybean, rapeseed (canola), corn, cottonseed, sunflower, and peanut oil.

The common characteristic of these oils is that they are derived from plants, which is why they contain mostly unsaturated fatty acids instead of saturated fatty acids.Liquid food oils are considered healthier than solid fats because of their unsaturated fat content. Monounsaturated and polyunsaturated fats are the two types of unsaturated fatty acids found in liquid oils.

These fats have been linked to a reduced risk of heart disease, stroke, and other health problems when consumed in moderation.Liquid food oils can be used for a variety of purposes, including cooking, baking, frying, salad dressings, and marinades.

Their liquid state makes them easier to measure, pour, and cook with. As a result, they are a preferred ingredient for many chefs and home cooks alike.

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Answer:

B

Explanation:

B

Answer:

A- by finding the atomic number minus the group number.

Explanation:

You can also find the core and valence electrons by determining or looking up the election configuration of the main group elements. The atomic number is the number of protons in the nuclei of the atoms of an element. A neutral atom has the same number of electrons as protons.

The number of core electrons be determined from the periodic table:

A. By finding the atomic number minus the group number.

To determine the number of core electrons for an atom using the periodic table.

1. Understand the structure of the periodic table:

The periodic table is a tabular arrangement of chemical elements, organized based on their atomic number, electron configuration, and chemical properties. Each element is represented by a unique symbol, and the elements are arranged in order of increasing atomic number from left to right and top to bottom.

2. Know the atomic number:

The atomic number of an element is the number of protons in the nucleus of its atoms. It is usually denoted by the letter "Z" and is a characteristic property of the element.

3. Identify the group number:

The periodic table is divided into groups (columns) and periods (rows). Each group contains elements with similar chemical properties because they have the same number of valence electrons. Valence electrons are the electrons located in the outermost energy level (shell) of an atom and are involved in chemical bonding. The group number corresponds to the number of valence electrons for elements in that group.

4. Determine the number of core electrons:

Core electrons are the electrons that occupy the inner energy levels, closer to the nucleus. These electrons do not participate in chemical reactions and are not in the outermost energy level. To find the number of core electrons for an element, you can use the following formula:

Number of Core Electrons = Atomic Number - Number of Valence Electrons.

The "Atomic Number" represents the total number of electrons in the atom, which is equal to the number of protons since atoms are electrically neutral (the number of electrons is balanced by the number of protons).

The "Number of Valence Electrons" is equal to the group number of the element because elements in the same group have the same number of valence electrons.

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Answer:

B. They are highly reactive.

Explanation:

Answer:

B: They are highly reactive

Explanation:

Sodium(Na) and potassium(K) are in the same family/group which is the Alkali Metal group.  These groups have their ability to displace H2(g) from water and create a basic solution. Alkali metals are also known to react violently and explosively with water. This is because enough heat is given off during the exothermic reaction to ignite the H2(g). Therefore, they are similar because of their reactivity.

Hope I helped!

According to  concept of thermal energy,  two statements which are accurate about insulated container are  that  heat lost by water will be absorbed by the object. Temperature of  water and object will approach  same value.

Thermal energy is defined as a type of energy which is contained within a system which is responsible for temperature rise.Heat is a type of thermal energy.It is concerned with the first law of thermodynamics.

Thermal energy arises from friction and drag.It includes the internal energy or enthalpy of a body of matter and radiation.It is related to internal energy and heat .It arises when a substance whose molecules or atoms are vibrating faster.

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Yes, I have tried eating delicious delicacies served in the school canteen during recess time.

The combination of these components in food produces different end products like vitamins, minerals, and many other nutrients which are beneficial for a healthy body.

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a. CaCO₃ effectively neutralizes excess stomach acid via the reaction: CaCO₃ + 2H⁺ → Ca²⁺ + H₂O + CO₂(g), making it a suitable source for chronic heartburn sufferers.

b. Marble statues erode from acidic precipitation due to a reaction between CaCO₃ and acid: CaCO₃ + H₂SO₄ → CaSO₄ + H₂O + CO₂(g).

c. Mg(OH)₂ antacids are preferred over CaCO₃ antacids due to better neutralization of stomach acid and faster relief of heartburn symptoms from higher solubility.

Calcium carbonate (CaCO₃) can neutralize excess stomach acid and thus provide relief from heartburn symptoms. When calcium carbonate reacts with stomach acid (hydrochloric acid, HCl), it forms calcium chloride (CaCl₂), carbon dioxide (CO₂), and water (H₂O). The net ionic equation for the reaction is:

CaCO₃(s) + 2H⁺(aq) → Ca²⁺(aq) + CO₂(g) + H₂O(l)

The calcium ions can also be absorbed into the bloodstream and contribute to overall calcium intake.

Marble is composed mainly of calcium carbonate (CaCO₃). When exposed to acidic precipitation (such as acid rain), the carbonic acid (H₂CO₃) formed in the reaction between carbon dioxide (CO₂) and water (H₂O) reacts with calcium carbonate, producing calcium ions (Ca²⁺), bicarbonate ions (HCO₃⁻), and water. The bicarbonate ions are then washed away by the rainwater, leaving behind calcium-deficient marble that is more prone to erosion. The chemical reaction can be represented as, CaCO₃(s) + H₂CO₃(aq) → Ca²⁺(aq) + 2HCO₃⁻(aq)

Many people prefer antacids in which magnesium hydroxide (Mg(OH)₂) is the active ingredient over those that use calcium carbonate (CaCO₃) because Mg(OH)₂ has a higher solubility and is more readily absorbed by the body, which means it can neutralize stomach acid more effectively. Additionally, Mg(OH)₂ has a mild laxative effect, which can help relieve constipation, a common side effect of taking calcium carbonate antacids.

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Quarts of pure antifreeze must be added to 5 quarts of a 20 antifreeze solution to obtain a 50 antifreeze solution is 3.

Antifreeze solution is a solute that lowers the freezing point of the liquid in a solution.

For calculating the amount of quarts of pure antifreeze solution added can be given by:

5×20/100 + x × 100% = (x+5) × 50/100

Where, x is the amount of antifreeze required for addition and pure antifreeze is 100% of the antifreeze taken.

1 + x = (x+5) 0.5

1 + x = 0.5x + 2.5

0.5x = 1.5

x = 3

So, 3 quarts of pure antifreeze must be added to 5 quarts of a 20 antifreeze solution to obtain a 50 antifreeze solution.

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Expressing the answer in exponential form we get 3⁴.

To simplify the expression (3⁷/(3³), we can apply the properties of exponents. When dividing two exponential expressions with the same base, we subtract the exponents.

In this case, we have 3⁷ divided by 3³, which can be simplified as:

3⁽⁷⁻³⁾

3⁴

Therefore, the simplified expression is 3⁴.

To understand why we subtract the exponents when dividing, we can break down the steps.

The expression 3⁷ represents 3 multiplied by itself seven times:

3 × 3 × 3 × 3 × 3 × 3 × 3.

The expression 3³ represents 3 multiplied by itself three times:

3 × 3 × 3.

When dividing these two expressions, we can cancel out common factors by subtracting the exponents:

(3 × 3 × 3 × 3 × 3 × 3 × 3) / (3 × 3 × 3)

This simplifies to:

3 × 3 × 3 × 3

Which is equivalent to 3⁴.

Thus, the answer in exponential form is 3⁴

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Answer: diamond

Explanation:

Diamond is a giant covalent molecule, containing millions of carbon atoms. Because of this, diamond is classified as a macromolecule.

Answer:

Uh Joe stinky?

Explanation:

Answer:

Aluminum(2)sulfur(3)

Explanation:

Explanation:

The equation of the reaction is given as;

12C + 16 H2 --> 4 C3H8

a. Simplify the equation;

The coefficients are 12, 16 and 4.

4 is a common factor, so divide all through by 4.

12/4 = 3, 16/4 = 4, 4/4 = 1

The equation is given as;

3 C + 4 H2 -->  C3H8

b. If 21 moles of  C3H8 are formed, how many moles of C was needed.

From the reaction;

3 mol C atoms reacts to form 1 mol of  C3H8

x mol would react to form 21 moles of  C3H8

3 = 1

x = 21

x = 21  * 3

x = 63 moles

The first one appear to be a pan with some liquid heating up.

The beginning state is liquid, the phase change type is a vaporization and its ending state is gas.

The second one seems to be a ice cube melting.

Its beginning phase is solid, the phase change type is fusion, and its ending state is liquid.

The third one is water, or other liquid, making clouds.

The beginning state is liquid, the phase change type is a vaporization and its ending state is gas.

The fourth illustration seems to be an aluminium can. There aren't really a phase change happening, but when we open the aluminium can containing gaseous drink, there are molecules of gas diluted into the liquid and some of it encouter each other to make a bubble of the gas and is released. It is not an actually phase change, it is the reverse process of diluting gas into liquid. Initially it is diluted gas, it gets released and in the end it is in gas phase.

Answer:

The correct option is desertification

Explanation:

Deforestation is the deliberate act of pulling down trees to provide a clear land for space or to make use of the trees for other purposes  such as grazing, farming, timber fire wood, building and constructions, urban utilization, access roads, expansion, development of infrastructures, grazing of cattle and mining

The effects of deforestation includes climate change, flooding, increase in the proportion of green house gases in the atmosphere, soil erosion and desertification.

A negative effect of deforestation is desertification.

Deforestation refers to the cutting down of trees. There are many reasons why people may cut down trees. One of the popular reasons why people cut down trees is to obtain timber which is used for construction and as fuel.

An important consequence of the felling of trees also called deforestation is that a once fertile land may gradually be turned into a desert area. This is known as desertification.

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Hydrogen and oxygen react to yield water.

Type of reaction: synthesis.

Balanced chemical equation: 2H₂ + O₂ → 2H₂O.

When hydrogen and oxygen react to form water, it is a synthesis reaction. The balanced chemical equation is 2H₂ + O₂ → 2H₂O. This equation means that two molecules of hydrogen react with one molecule of oxygen to produce two molecules of water.

If we started with 250.0 grams of hydrogen, we can calculate the amount of water produced using stoichiometry. The molar mass of hydrogen is 2.02 g/mol, so 250.0 g of hydrogen is equal to 123.76 moles. From the balanced equation, we know that 2 moles of hydrogen react with 1 mole of oxygen to produce 2 moles of water. Therefore, 123.76 moles of hydrogen will react with 61.88 moles of oxygen to produce 247.52 moles of water, which is equivalent to 4,461.36 grams of water.

Similarly, if we started with 250.0 grams of oxygen, we can calculate the amount of water produced. The molar mass of oxygen is 32.00 g/mol, so 250.0 g of oxygen is equal to 7.81 moles. Using stoichiometry, we can determine that 3.91 moles of hydrogen will react with 7.81 moles of oxygen to produce 7.81 moles of water, which is equivalent to 140.58 grams of water.

Since we need 3.91 moles of hydrogen to react with 7.81 moles of oxygen to produce the maximum amount of water, hydrogen is the limiting reactant.

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The student with the correct statement is Arlo.

First, we shall determine the mole of sulphur in the jar. This can be obtained as follow:

Mole = mass / molar

Mole of sulphur = 16 / 32

Mole of sulphur = 1/2 mole

Finally, we shall determine the number of atoms in the jar. This can be obotained as follow:

From Avogadro's hypothesis,

1 mole of sulphur = 6.02×10²³ atoms

Therefore,

1/2 mole of sulphur = 1/2 × 6.02×10²³ atoms

1/2 mole of sulphur = 1/2 × Avogadro's number

Thus, the number of sulphur atom is 1/2 times Avogadro's number

Therefore, Arlo is correct.

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The overall reaction between aqueous ammonia and solid copper(II) phosphate can be represented as follows: \($\mathrm{Cu_3(PO_4)_2 (s) + 4NH_3 (aq) \rightleftharpoons [Cu(NH_3)_4]^{2+} (aq) + 2PO_4^{3-} (aq)}$\)

Let's start by writing the reactions corresponding to Ksp and Kf:

Reaction for the formation of the insoluble copper(II) phosphate:

\($\mathrm{Cu^{2+} (aq) + PO_4^{3-} (aq) \rightarrow Cu_3(PO_4)_2 (s)}$\)

Reaction for the formation of the complex ion \($\mathrm{[Cu(NH_3)_4]^{2+}}$\):

\($\mathrm{Cu^{2+} (aq) + 4NH_3 (aq) \rightleftharpoons [Cu(NH_3)_4]^{2+} (aq)}$\)

To derive the overall reaction between copper(II) ion and aqueous ammonia, we can combine these reactions. Since the complex formation with ammonia occurs in the presence of the copper(II) ion, we can use the fact that the copper(II) ion is in equilibrium with the small amount of free copper(II) ions:

\($\mathrm{Cu^{2+} (aq) \rightleftharpoons Cu^{2+} (aq)}$\)

By combining the two reactions, we can cancel out the common species \($\mathrm{Cu^{2+}}$\):

\($\mathrm{Cu_3(PO_4)_2 :(s) + 4NH_3 :(aq) \rightleftharpoons [Cu(NH_3)_4]^{2+} :(aq) + 2PO_4^{3-} :(aq)}$\)

This is the overall chemical reaction that occurs between aqueous ammonia and solid copper(II) phosphate.

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Amphetamine was developed initially as a substitute for a closely-related chemical derived from the Chinese herb ma huang. That chemical is Ephedrine.

Ephedrine is a stimulant medication that can be considered an amine chemical compound and substituted amphetamine.

Ephedrine is used in sports to stimulate the central nervous system (C_NS) and as energy supplier.  

Ep_hedrine use is prohibited and chronic usage of this substance may have problems the health.

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Simply transfer the cold plate/processors to the new system board; there is no need to remove the processor or disrupt the thermal material bond from the cold plate.

A cold-water conduit into your CPU is only one form of liquid cooling; there are a few others as well. Some server cabinets have chilled rear doors where cool air is pushed onto the server and cold water is piped through.

Microsoft is one of the IT corporations working with cold plate technology, which uses pipes of liquid to cool servers through metal plates. By employing it to cool the chips that record digital currency transactions, participants in the cryptocurrency business invented liquid immersion cooling for computing hardware.

The water block's coolant absorbs the heat from the CPU. To keep the processor or graphics card cold, a cooling liquid is known as coolant loops around the cooling kit. To remove air bubbles from the liquid as it circulates, the reservoir stores extra coolant.

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Answer:

It's True

Explanation:

The person would be having an intense craving, which is a symptom of substance use disorder.

Option (B) is correct. According to the Bohr's theory if Hydrogen atom is in the n=4 state the possible outcomes are \(2h^{2} 6h^{2} 12h^{2}\).

According to Bohr's theory of hydrogen atom the orbits of electrons in atoms are quantized. It explains each orbit has a different energy and electrons can move to a higher orbit by absorbing energy and drop to a lower orbit by emitting energy. It is explained that if the orbits are quantized the amount of energy absorbed or emitted is also quantized producing discrete spectra. Photon absorption and emission are among the primary methods of transferring energy into and out of atoms according to the Bohr's model of hydrogen atom. Bohr described it as a positively charged nucleus comprised of protons and neutrons surrounded by a negatively charged electron cloud. In this model of hydrogen atom, the electrons orbit the nucleus in atomic shells.

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The complete question is,

A Hydrogen atom is in the n=4 state. If a measurement of L^2 is made, what are the possible outcomes?

A. h, 2h, 3h

B. 2h^2, 6h^2, 12h^2

C. h, 2h^2, 6h^2, 12h^2, 20h^2

D. -6h^2, -2h^2, 0, 2h^2,6h^2

E. none of the above

2.83 M will be the molar concentration of ethanol (CH₃CH₂OH, 46.08 g/mol) in a wine that is 14% ethanol by mass.

Molar mass of CH₃CH₂OH = 46.08 g/mol

Percentage in wine = 14 %

Density of wine = 0.93 g/cm3

Molar concentration = ?

Calculate density of ethanol:

density of ethanol = (% of ethanol / 100) × density of wine

density of ethanol = (14 / 100) 0.93 g/ml

density of ethanol = 0.14 × 0.93 g/ml

density of ethanol = 0.1302 g/ml

Supose we have 1 ml wine so mass = 0.1302 g / ml

Now calculate the number moles of ethanol

number of moles = mass / molar mass

number of moles of CH₃CH₂OH = 0.1302 g / 46.08 g/mol

number of moles of CH₃CH₂OH = 0.00283

Calculate the molarity of ethanol

molarity = number of moles / molar mass in L

molarity of CH₃CH₂OH = 0.00283 mol / 1 ml × 1000 ml / 1L

molarity of CH₃CH₂OH = 2.83 mol/L

molarity of CH₃CH₂OH = 2.83 M

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Answer:its c and d

Explanation:

Tectonic forces do not cause plates to slide over and under each other, to produce heat and pressure which forms igneous rocks

The rock cycle is a cycle which describes how the three basic rock types are related and how earth processes convert one rock type into another over geologic time.

Plate tectonic forces together with weathering and erosional processes, are responsible for the rock cycle.

Tectonic forces play the following roles in rock cycle:

Therefore, the statement that when plates slide over and under each other, the heat and pressure form igneous rocks is not True.

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The element is aluminum (Al), which has the electron configuration [Ne] 3s2 3p1.

Based on the given values for successive ionization energies, we can identify the element by looking at the jumps in energy between each ionization. The first ionization energy (ie1) is not given, but we know that it is lower than the second ionization energy (ie2). This suggests that the element is likely a metal. The jump in energy between ie2 and ie3 is relatively small compared to the jumps between ie3 and ie4, ie4 and ie5, and ie5 and ie6. This suggests that the element is in the middle of period 3, as elements in the beginning and end of a period tend to have smaller jumps in energy between ionization levels. Looking at the values, we can see that the jump between ie5 and ie6 is particularly large, which indicates that the element has a full or half-full d subshell and is aluminum.

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A polymer called polystyrene (PS) is created from the liquid hydrocarbon styrene, which is produced commercially from petroleum.

The monomers of the aromatic hydrocarbon styrene are converted into a synthetic polymer known as polystyrene. Polystyrene can be either foamed or solid. For normal use, polystyrene is clear, hard, and brittle. It is a fairly priced resin when measured by weight. It has a weak barrier to oxygen and water vapor and a relatively low melting point. Polystyrene is commonly used to preserve consumer items in both solid and foam forms. In order to protect food from damage or spoiling, polystyrene is frequently used to produce CD and DVD covers, foam shipping peanuts, food packaging, meat/poultry trays, and egg cartons.

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Answer:

23.5 %

Explanation:

La fórmula del ácido sulfúrico es H₂SO₄, mientras que su masa molar es de 98 g/mol.

Siendo la densidad 1.4 g/mL, quiere decir que en 1 mL de solución tenemos 1.4 g de solución. Como la concentración es de 330 g/L entendemos que la solución contiene 330 gramos de soluto en 1L de solución.

Entonces en 1000 mL de solución (lo que equivale a 1 litro), tendremos:

1.4 g/mL = masa de solución / 1000 mL

masa de solución = 1.4 g/mL . 1000 mL =  1400 g

Como % en masa es la concentración que define la masa de soluto en 100 gramos  de solución, para esta solución de H₂SO₄ es:

(330 g / 1400 g) . 100 = 23.5 %

Answer:

Explanation:

The mass of the sun is about 1.98 x 10^30 kilograms. The mass of the earth is 5.97x 10^24 kilograms.

1.98 x 10^30 / 5.97x 10^24 = 331658 times greater

Answer:

Explanation:

The mass of the sun / the mass of the earth

= 1.98 x 10^30 / 5.97x 10^24

= 3.32 x 10^5 times greater