Answers
Rbf
The pattern of electronegativity across the periodic table is that electronegativity increases as you move up and to the right. Fluorine (F) has the greatest electronegativity, followed by rubidium, RbF will have the highest percentage of ionic bonds (Rb). The percentage of ionic character in the other compounds' bonds will be lower because they have less electronegativity than RbF. The difference between Rb's electronegativity of 0.82 and F's electronegativity of 4.0 is 3.18. This is significantly bigger than the differences between the other bonds, which range between 1.36 (HCl) and 1.90 (NH3) (HBr).
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Related Questions
19. A girl is ice skating and has 35 kgm/s of momentum. After she bumps into a
friend, she has 25 kgm/s of momentum. How much did she give her friend?
Answers
Answer:
15 kgm/s of momentum
Explanation:
4.0 cm north + 3.5 cm west
Answers
Sulfur has 6 valence electrons.
Which element could pair with it
in a 1 atom : 1 sulfur ratio?
Answers
Answer:
Any Group 2A element (Be, Mg, Ca, Sr, Ba, Ra)
Explanation:
According to the Octet Rule, Sulfur would want to gain two electrons in its outermost shell to achieve an octet (8 total electrons). The elements that could accomplish this in a one-to-one ratio would be Group 2A on the periodic table (alkaline earth metals).
There are two types of chemical compound one is covalent compound and other is ionic compound, covalent compound formed by sharing of electron and ionic compound formed by complete transfer of electron. Therefore, alkaline earth metals are the suitable elements.
What is chemical Compound?Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.
An ionic compound is a metal and nonmetal combined compound. Ionic compound are very hard. They have high melting and boiling point because of strong ion bond.
The compound that is ionic in nature can be dissociated very easily in water. Since ionic compounds are polar in nature, they readily dissolve in water. The elements that could accomplish this in a one-to-one ratio would be alkaline earth metals
Therefore, alkaline earth metals are the suitable elements.
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How many grams of potassium chloride can be dissolved in 200g of water at 80c
Answers
At 80C, the solubility of potassium chloride in water is approximately 56.2 grams per 100 grams of water. Therefore, approximately 112.4 grams of potassium chloride can be dissolved in 200 grams of water at 80C.
At 80C, the solubility of potassium chloride in water is approximately 56.2 grams per 100 grams of water.
We can use this to calculate how much can be dissolved in 200 grams of water.
We first convert 56.2 g/100 g to a proportion:
56.2 g/100 g = x/200 g
We can then cross multiply and solve for x:
100x = 56.2(200)
x = 112.4 g
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9. Which of the following gas laws is calculated with the pressure and
volume variables at a constant temperature?
Formula
4 points
P₁V₁ = P₂V₂
P₁ = first pressure
P2 = second pressure
V₁ = first volume
Answers
The gas law that is calculated with the pressure and volume variables at a constant temperature is Boyle's Law. Boyle's Law states that the pressure (P) of a gas is inversely proportional to its volume (V) when temperature (T) is held constant.
Mathematically, it is expressed as P₁V₁ = P₂V₂, where P₁ and V₁ represent the initial pressure and volume, and P₂ and V₂ represent the final pressure and volume.According to Boyle's Law, if the volume of a gas is reduced while keeping the temperature constant, the pressure will increase proportionally.
Similarly, if the volume is increased, the pressure will decrease. This relationship holds as long as the temperature remains constant throughout the process. Boyle's Law is one of the fundamental gas laws and provides insights into the behavior of gases under changing pressure and volume conditions at a constant temperature.
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The composition of a compound is 28.73% K, 1.48% H, 22.76% P, and 47.03% O. The molar mass of the
compound is 136.1 g/mol.
I
Answers
The compound has an empirical formula of \(K_2H_2P_2O_8\) and a molecular formula of \(K_2HPO_4\).
The given compound has a percent composition of K = 28.73%, H = 1.48%, P = 22.76%, and O = 47.03%. Its molar mass is 136.1 g/mol. To determine its molecular formula, we need to find its empirical formula and calculate its molecular formula from its empirical formula.The empirical formula is the smallest whole number ratio of atoms in a compound. It can be determined by converting the percent composition of the elements into their respective moles and dividing each by the smallest number of moles calculated. The moles of K, H, P, and O in 100 g of the compound are: K = 28.73 g x (1 mol/39.1 g) = 0.734 molH = 1.48 g x (1 mol/1.01 g) = 1.46 molP = 22.76 g x (1 mol/30.97 g) = 0.736 molO = 47.03 g x (1 mol/16.00 g) = 2.94 molDividing each by the smallest number of moles gives the following ratios: K = 0.734/0.734 = 1H = 1.46/0.734 = 2P = 0.736/0.734 = 1.002O = 2.94/0.734 = 4. The empirical formula of the compound is \(K_2H_2P_2O_8\). To calculate the molecular formula, we need to determine the factor by which the empirical formula should be multiplied to obtain the molecular formula. This can be done by comparing the molar mass of the empirical formula to the molar mass of the compound.The molar mass of \(K_2H_2P_2O_8\) is: \(M(K_2H_2P_2O_8)\) = (2 x 39.1 g/mol) + (2 x 1.01 g/mol) + (2 x 30.97 g/mol) + (8 x 16.00 g/mol) = 276.2 g/mol. The factor by which the empirical formula should be multiplied is: M(molecular formula)/M(empirical formula) = 136.1 g/mol/276.2 g/mol = 0.4935. The molecular formula is obtained by multiplying the empirical formula by this factor: \(K_2H_2P_2O_8 * 0.4935 = K_2HPO_4\). Therefore, the molecular formula of the compound is \(K_2HPO_4\).The molecular formula of the given compound having a composition of 28.73% K, 1.48% H, 22.76% P, and 47.03% O with a molar mass of 136.1 g/mol is \(K_2HPO_4\). The empirical formula of the compound is \(K_2H_2P_2O_8\). The compound's molecular formula is calculated by determining the factor by which the empirical formula should be multiplied to obtain the molecular formula. The factor is M(molecular formula)/M(empirical formula) = 136.1 g/mol/276.2 g/mol = 0.4935. The molecular formula of the compound is obtained by multiplying the empirical formula by this factor, resulting in the molecular formula \(K_2HPO_4\).For more questions on empirical formula
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The correct question would be as
The composition of a compound is 28.73% K. 1.48% H, 22.76% P, and 47.03% O. The molar mass of the compound is 136.1 g/mol. What is the Molecular Formula of the compound?
\(KH_2PO_4\\KH_3PO_4\\K_2H_4P_20_{12}\\K_2H_3PO_6\)
All of the different types of electromagnetic radiation (light, x-rays, ultraviolet radiation, and so on) make up the _______________
Question 15 options:
spectral lines.
sunlight.
atomic spectrum.
electromagnetic spectrum.
Answers
Answer:
The other types of EM radiation that make up the electromagnetic spectrum are microwaves, infrared light, ultraviolet light, X-rays and gamma-rays.
d is correct
hope it helps please give brainliest
Answer:
D)
Explanation:
The electromagnetic spectrum comprises the span of all electromagnetic radiation and consists of many subranges, commonly referred to as portions, such as visible light or ultraviolet radiation.
A 28.3 mL sample of a solution of RbOH is
meutralized by 21.91 mL of a 1.205 M solution
of HBr. What is the molarity of the RbOH
solution?
Answer in units of M.
LO
*
17 * I
a
*
C
Answers
To answer this question, we need to know the concentration of the RbOH solution. Without this information, we cannot determine the amount of RbOH present in the 28.3 mL sample.
However, if we assume that the concentration of the RbOH solution is known, we can use the formula:
moles of solute = concentration x volume
To find the number of moles of RbOH in the 28.3 mL sample. From there, we can use the molar mass of RbOH (102.47 g/mol) to calculate the mass of RbOH in the sample.
For example, if the concentration of the RbOH solution is 0.1 M, then:
moles of RbOH = 0.1 M x 0.0283 L = 0.00283 moles
mass of RbOH = 0.00283 moles x 102.47 g/mol = 0.290 g
So, a 28.3 mL sample of a 0.1 M RbOH solution would contain 0.290 g of RbOH.
In summary, the amount of RbOH present in a 28.3 mL sample of a solution depends on the concentration of the solution. Without knowing the concentration, we cannot determine the amount of RbOH in the sample.
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Alcohol and water are best separated from one another by
Answers
Answer:
fractional distillation
Explanation:
What is paper made of?
Answers
Paper used as a writing material is made of pulp (wood).
What is paper?Paper is a sheet material used for writing on or printing on (or as a non-waterproof container), usually made by draining cellulose fibres from a suspension in water.
Paper is made from cellulose found in trees, which are the main source of cellulose fibre (or woodpulp). Besides woodpulp, paper can be made from other materials such as cotton, flax, esparto, straw, hemp, manilla and jute.
Wood pulp is usually a softwood, used for pulping to make paper.
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Which aqueous solution is colored?
1.
CuSO4(aq)
2.
BaCl2(aq)
3.
KCl(aq)
4.
MgSO4(aq)
Answers
Answer: Copper (II) Sulfate! (CuSO4)
Explanation:
This is because compared to the other salts, it is the visible color blue. The other ones are plain white. Happy holidays! Don’t stress :)
What is the ph value of human saliva
Answers
The ph value of human saliva is between 6.2-7.6 with 6.7 being the average pH
ph value of human saliva is 7 and 6
The analysis of a compound shows it contains 5.4 mol C, 7.2 mol H, and 1.8 mol N. What is the empirical formula of the compound
Answers
Answer: C3H4N
Explanation:
The compound that contains 5.4 mol C, 7.2 mol H, and 1.8 mol N has the empirical formula C₃H₄N.
A compound contains 5.4 mol C, 7.2 mol H, and 1.8 mol N. To find the empirical formula, that is, the integers that are the subscripts for each element, we have to divide all the numbers by the smallest one, i.e. 1.8.
\(C: 5.4/1.8 = 3\\H: 7.2/1.8 = 4\\N: 1.8/1.8 = 1\)
The empirical formula is C₃H₄N.
In that way, the compound that contains 5.4 mol C, 7.2 mol H, and 1.8 mol N has the empirical formula C₃H₄N.
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How many grams of phosphorous is in the human skeleton if its average
weight is 11 kg and contains 58% of calcium phosphate (Ca3(PO4)2)?
Answers
hope this helps
I think most likely yes
2. (01.03 MC)
What energy transfer is occurring when a battery-powered toy rolls across the floor? (3 points)
Stored mechanical energy is converted to thermal energy.
Stored mechanical energy is converted to mechanical energy.
Stored chemical energy is converted to thermal energy.
Stored chemical energy is converted to mechanical energy
Answers
Answer:
stored chemical energy is converted into mechanical energy.
Explanation:
the chemical reactions happens in the battery turn into electricity that makes the toy rolls across the floor.
Answer:
stored chemical energy is converted into mechanical energy.
Explanation:
What factors affect the growth of organisms?
Answers
All microorganisms need food. The food sources can vary, but the organisms primarily extract carbon and nitrogen from substances such as proteins, fats and carbohydrates. Some microorganisms seek out and absorb such particles. Others may perform chemical reactions with surrounding elements such as carbon dioxide to gain what they need, while still others can produce their own simple sugars through photosynthesis similar to plants. Nitrogen, which is used to synthesize proteins, can be taken from the surrounding atmosphere or from other organic matter.
Temperature
In general, the higher the temperature, the more easily microorganisms can grow up to a certain point. Very high and very low temperatures both obstruct the enzyme processes microorganisms depend on to survive, but individual species of microorganisms have grown to prefer different levels of temperature. Scientists usually divide them into three different groups: psychrophiles, mesophiles and thermophiles. Psychrophiles prefer temperatures from 0 to 5 degrees Celsius; mesophiles like it in the middle, 20-45 degrees Celsius; and thermophiles like it hot, thriving in temperatures around or above 55 degrees.
pH Levels
Microorganisms also prefer a certain pH level in the substance or environment in which they grow--that is, they prefer to have particular acidic qualities in their surroundings. Most microorganisms, including most human pathogens, are neutriphils, organisms that prefer a neutral pH level. Some like high pH levels, but most often, if conditions are too acidic, then the organism's enzymes break down.
Moisture
The free flow of water is vital to microorganisms for their cells to exchange materials and for their metabolic processes. All microorganisms require some level of water, but a few can survive in low-moisture conditions by conserving all the water they find and by staying in a moisture-rich environment. As a general rule, though, the more moisture, the more microorganisms there will be found.
Elements Present
What type of bond is present between two atoms of zinc in a nickel
Answers
Answer:
Pure covalent
Explanation:
To know the type of bond between two atoms you must find the electronegativity difference of them:
If electronegativity difference is:
< 0.4: Pure covalent.
Between 0.4 and 1.8: Polar covalent.
> 1.8: Ionic.
The electronegativity of Zn is 1.65 and Ni is 1.91. Electronegativity difference is:
1.91 - 1.65 = 0.26
That means the type of bond is:
Pure covalentJames measured the humidity of the air on his backyard each morning for four days His data is recorded below On which day did it most likely rain
Answers
Answer:
hdbdjsjsj
Explanation:
hdhshshe
The central atom doesn’t have eight valence electrons, so what’s drawn in part B isn’t yet a stable molecule and can’t represent the actual structure of ozone. An additional bond must be made to complete the full set of valence electrons on the central atom. This can be done by removing a lone pair of electrons from either one of the outer atoms and using it to make an additional bond between that atom and the central atom. Redraw the Lewis structure you drew in part B and show this additional bond.
Answers
Answer:
Explanation:
PLATO ANSWER
Please answer this question
Answers
Answer:
I'm not an expert at this, but I assume its mercury.
Draw the structure of phosphatidylserine and discuss its components
Answers
Phosphatidylserine is a type of phospholipid that is mainly found in cell membranes. Its structure is made up of two fatty acid chains, a phosphate group, a serine molecule, and a glycerol molecule.
The fatty acid chains are hydrophobic, meaning they repel water, while the phosphate group and serine molecule are hydrophilic, meaning they attract water.
The glycerol molecule acts as a bridge that connects the two fatty acid chains to the phosphate group and serine molecule.
The structure of phosphatidylserine is important for its function in the cell membrane.
Because of the hydrophobic and hydrophilic components of its structure, phosphatidylserine is able to form a lipid bilayer, which is a barrier that separates the inside of the cell from the outside environment.
The hydrophilic heads of the phosphatidylserine molecules face outward and interact with water, while the hydrophobic tails face inward and repel water.
Phosphatidylserine also plays a role in cell signaling and apoptosis, which is programmed cell death.
It acts as a signaling molecule by binding to proteins that are involved in cellular pathways.
In addition, phosphatidylserine is translocated to the outer leaflet of the cell membrane during apoptosis, which signals to immune cells that the cell is ready to be removed.
In conclusion, the structure of phosphatidylserine is made up of two fatty acid chains, a phosphate group, a serine molecule, and a glycerol molecule. Its hydrophobic and hydrophilic components allow it to form a lipid bilayer in cell membranes, and it also plays a role in cell signaling and apoptosis.
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Describe why the atoms Na and Cl would form an ionic bond
Answers
Answer:
• This is because Sodium is a metal so it loses its one outermost electron to chlorine which is a non metal
Explanation:
An ionic bond is a bond formed between a metal and a non metal after sharing electrons in order to gain stability.
\(.\)
Answer:
Sodium is metal and Chlorine is a non-metal
Explanation:
An ionic bond is a bond between a metal and a non-metal and also when Na combines with Cl it forms a complete duplex structure making the compound NaCl stable
A homerun in a baseball game was measured at 450 feet. How many meters is this equal to?
Answers
Answer:
137.16
Explanation:
1 webbed feet
2wing structure
3beaks
4 eye color
Answers
Explanation:
webbEd feeetttttt ...........
6. Balance the following equations (show work for TWO)
Na + _MgF2
NaCl
_Mg +_
Na +
-
HCI
02
_C2H6+____02
_NaF + Mg
_Na+_ _C12
_MgCl2 + H2
Na20
_CO2+_H20
Answers
Balance the following equations , 2Na + 1Cl2 ⇒ 2NaCl, 4Na + O2 ⇒2Na2O.
How do you balance a chemical equation in seven steps?balancing the chemical equation by steps.
The unbalanced chemical equation must first be written.
Comparing the atom counts on the reactant and product sides is step two.
Balance the carbon atoms in the third step.
Step 4: Harmonizing the atoms of oxygen and hydrogen.
Balanced chemical equation in step five.
What four rules can help you balance an equation?One at a time, balance various atom types; first, balance atom types that only appear once on either side of the equation; second, balance polyatomic ions that appear on both sides of the equation as single units; and third, balance H and O atoms finally.
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PLEASE TELL ME THE AWNSERS ITS A DOC FILE SO OPEN IT I WILL GIVE BRAINLIEST PLS HURRY
Answers
a. In terms of air molecules, explain what gives a balloon its shape when air is blown into it.
b. Why does it stop expanding when you stop blowing air into it?
Answers
Answer:
A. This is because the pressure of the gas is the force that the gas exerts on the walls of its container. The force gives the balloon the shape when the air is blown into it.
B.When air is blown into a balloon, the balloon expands because the pressure of air molecules is greater on the inside of the balloon than the outside. When blowing of air is stopped, the gases in the balloon remain constant and so does its shape.
Two asteroids are 75,000 m apart one has a mass of 8 x 10^7 N what is the mass of the other asteroid
Answers
The mass of the asteroid is C. 1.2 x \(10^{12}\) Kg
To find the mass of the other asteroid, we can rearrange the equation for the gravitational force between two objects:
F = (G * m1 * m2) / \(r^{2}\)
where F is the force of gravity, G is the gravitational constant, m1 and m2 are the masses of the two asteroids, and r is the distance between them.
Given that the distance between the asteroids is 75000 m, the force of gravity between them is 1.14 N, and one asteroid has a mass of 8 x \(10^{7}\) kg, we can substitute these values into the equation and solve for the mass of the other asteroid (m2):
1.14 N = (6.67430 × \(10^{-11}\) N \(m^{2}\)/\(Kg^{2}\) * 8 x \(10^{7}\) kg * \(m2\)) / \((75000 m)^{2}\)
Simplifying and solving the equation, we find that the mass of the other asteroid (m2) is approximately 1.2 x \(10^{12}\) kg. Therefore, Option C is correct.
The question was incomplete. find the full content below:
Two asteroids are 75000 m apart one has a mass of 8 x \(10^{7}\) kg if the force of gravity between them is 1.14 what is the mass of the asteroid
A. 3.4 x \(10^{11}\) kg
B. 8.3 x \(10^{12}\) kg
C. 1.2 x \(10^{12}\) kg
D. 1.2 x \(10^{10}\) kg
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1.(a) Describe a condensation (dehydration synthesis) reaction. What type of organic molecule (that we discussed in class) forms as a result of such reactions?(b) Describe an addition reaction. Do saturated or unsaturated organic molecules participate in addition reactions? Explain your reasoning.
Answers
(a) Condensation reaction is a reaction whereby two molecules combine to form a single molecule. During this reaction, water is removed. For example, two amino acids combine by a covalent bond, water molecule is then removed as a second product. Esterification is a type of condensation reaction, whereby an ester is formed from an alcohol and a carboxylic acid. Another example of condensation reaction is saponification which describes the alkaline hydrolysis reaction of an ester.
(b) Addition reaction is a reaction whereby a double bond is broken by additing an element. Unsaturated organic molecules participate in addition reactions, this is because unsaturated organic molecules are those that have double bonds.
For example addition of hydrogen: Addition of hydrogen to a carbon-carbon double bond is called hydrogenation, which results in the removal of the double bond.
2. Which state of matter is characterized by particles that are close to each other but are not arranged in a definite pattern?
A)liquid
B)plasma
C)solid
D)gas
Answers
Answer:
Solid
Explanation:
Cus its solid, take a brick for example. It's hard and has no space unlike liquid or gas.