Which of the following is not a type of basic structure for a pure metal?

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Answer 1

Answer: Okay well we do not have the attachment

Related Questions

25) Which of these pH numbers indicates the highest level of acidity?A) 5B) 8C) 10D) 1226) Which pH indicates a basic solution?A) 1B) 5C) 7D) 1227) Given the following solutions:Solution A: pH of 10Solution B: pH of 7Solution C: pH of 5Which list has the solutions placed in order of increasing H+ concentration?A) A, B, CB) B, A, CC) C, A, BD) C, B, A28) Which of the following pH values indicates the highest concentration of hydronium ions in a solution?A) pH = 1B) pH = 2C) pH = 3D) pH = 429) As HCl(g) is added to water, the pH of the water solutionA) decreasesB) increasesC) remains the same30) What is the pH of a 0.0001 M aqueous solution of HCl?A) 1B) 2C) 3D) 431) What is the pH of a 0.001 M HNO3 solution?A) 1B) 2C) 3D) 1132) The [H3O+] of a solution is 1 × 10–8. This solution has a pH ofA) 6, which is acidicB) 8, which is basicC) 6, which is basicD) 8, which is acidic33) The H3O+ ion concentration of a solution is 1 × 10–4 mole per liter. This solution isA) acidic and has a pH of 4B) acidic and has a pH of 10C) basic and has a pH of 4D) basic and has a pH of 1034) The pH of 0.001M HCl isA) 1B) 2C) 3D) 435) Phenolphthalein is pink in an aqueous solution having a pH ofA) 5B) 2C) 7D) 1236) What is the color of the indicator thymol blue in a solution that has a pH of 11?A) redB) blueC) pinkD) yellow37) Three samples of the same solution are tested, each with a different indicator. All three indicators, bromthymol blue, bromcresol green and thymol blue, appear blue if the pH of the solution isA) 4.7B) 6.0C) 7.8D) 9.938) Based on the results of testing colorless solutions with indicators, which solution is most acidic?A) a solution in which bromthymol blue is blueB) a solution in which bromcresol green is blueC) a solution in which phenolphthalein is pinkD) a solution in which methyl orange is red39) Which indicator would best distinguish between a solution with a pH of 3.5 and a solution with a pH of 5.5A) bromthymol blueB) bromcresol greenC) litmusD) thymol blue40) Which indicator is blue in a solution that has a pH of 5.6?A) bromcresol greenB) bromthymol blueC) methyl orangeD) thymol blue41) Which indicator, when added to a solution, changes color from yellow to blue as the pH of the solution is changed from 5.5 to 8.0?A) bromcresol greenB) bromthymol blueC) litmusD) methyl orange42) The table below shows the color of the indicators methyl orange and litmus in two samples of the same solution.Which pH value is consistent with the indicator results?A) 1B) 5C) 3D) 1043) In which 0.01 M solution is phenolphthalein pink?A) CH3OH(aq)B) Ca(OH)2(aq)C) CH3COOH(aq)D) HNO3(aq)44) Which indicator is yellow in a solution with a pH of 9.8?A) methyl orangeB) bromthymol blueC) bromcresol greenD) thymol blue45) In which solution will thymol blue indicator appear blue?A) 0.1 M CH3COOHB) 0.1 M KOHC) 0.1 M HClD) 0.1 M H2SO446) According to Reference Table M, what is the color of the indicator methyl orange in a solution that has a pH of 2?A) blueB) yellowC) orangeD) red47) Which solution when mixed with a drop of bromthymol blue will cause the indicator to change from blue to yellow?A) 0.1 M HClB) 0.1 M NH3C) 0.1 M CH3OHD) 0.1 M NaOH48) According to one acid-base theory, NH3 acts as a base when an NH3 moleculeA) accepts an ionB) donates an ionC) accepts an ionD) donates an ion49) Given the diagram representing a reaction:According to one acid-base theory, the water acts asA) a base because it accepts an H+B) a base because it donates an H+C) an acid because it accepts an H+D) an acid because it donates an H+50) Given the balanced equation representing a reaction:According to one acid-base theory, the H2O() molecules act asA) a base because they accept H+ ionsB) a base because they donate H+ ionsC) an acid because they accept H+ ionsD) an acid because they donate H+ ions
Enter the the ksp expression for the solid ab2 in terms of the molar solubility x.
Which of the following can be produced at an ocean continental convergent boundary,_______________ ??????????????????HELP!
2 H2 + O2 → 2 H20, how many moles of O2 are needed to yield 7.8 moles ofwater?
How much heat is required to vaporize 50.0 g of water if the initial temperature of the water is 25.0◦c and the water is heated to its boiling point where it is converted to steam? the specific heat capacity of water is 4.18 j · ( ◦c)−1 · g −1 and the standard enthalpy of vaporization of water at its boiling point is 40.7 kj · mol−1?

A sample of carbon-12 has a mass of 6.00 g. How many atoms of carbon-12 are in the sample?

Answers

The number of atoms in the 6 grams of carbon is equal to 1.506 × 10²³.

What is Avogadro's number?

The Avogadro number is the proportionality factor which is the number of particles such as atoms, molecules, or ions in one mole of a substance.

Avogadro's number possesses a numeric value of 6.022 × 10²³ reciprocal moles. Avogadro's constant is named by Stanislao Cannizzaro after the scientist Amedeo Avogadro.

Given, the mass of the carbon in sample = 6 g

The number of atoms of one mole of carbon = 6.022 × 10²³

The atomic mass of one mole of carbon = 12 g

It means 12 g of the carbon has atoms = 6.022 × 10²³ carbon atoms

Then 6 grams of carbon will have atoms = (6/12) × 6.022 × 10²³

= 3.011 × 10²³ carbon atoms

Therefore, the atoms of carbon in 6 g of sample of carbon are 3.011 × 10²³ atoms.

Learn more about Avogadro's number, here:

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Convert grams to moles [grams/molar mass] ~ Moles
Convert moles to atoms [moles * 6.02 x 10^23] = Atoms
Half of 6.02 x 10^23 is 3.01 x 10^23 so here is our answer.

Sort the following situations into chemical change or physical change:1. salt dissolves in water
2. Hydrochloric acid reacts with magnesium to produce hydrogen gas
3. a piece of copper is cut in half
4. a sugar cube is ground up
5. water is heated and changed to steam
6. iron rusts
7. ethyl alcohol evaporates
8. ice melts
9. milk sours
10. sugar dissolves in water
11. sodium and potassium react violently with water
12. pancakes cook on a griddle
13. grass grows on a lawn
14. a tire is inflated with air
15. food is digested in the stomach
16. water is absorbed by a paper towel
17. ethyl alcohol boils at 79 egress Celsius
18. paper burns
19. water freezes at 0 degrees Celsius
20. fireworks explode
21. alka-seltzer gives off carbon dioxide when added to water
22. clouds form in the sky

Answers

Chemical
2. Hydrochloric acid reacts with magnesium to produce hydrogen gas
5. water is heated and changed to steam
6. iron rusts
9. milk sours
7. ethyl alcohol evaporates
11. sodium and potassium react violently with water
12. pancakes cook on a griddle
15. food is digested in the stomach
17. ethyl alcohol boils at 79 egress Celsius
18. paper burns
20. fireworks explode
21. alka-seltzer gives off carbon dioxide when added to water
22. clouds form in the sky

Physical
19. water freezes at 0 degrees Celsius
16. water is absorbed by a paper towel
14. a tire is inflated with air
13. grass grows on a lawn
1. salt dissolves in water
3. a piece of copper is cut in half
4. a sugar cube is ground up
8. ice melts
10. sugar dissolves in water

What form of energy provides power for a gas stove?A.nuclear energy
B.electrical energy
C.chemical energy
D.sound energy

Can you explain the answer for me ?

Answers

C . chemical energy will be the answer. In a gas stove, LPG is stored and it is brought out and it reacts with oxygen to give out heat energy. all the other options are not convincing and hence chemical energy is the best answer.

Which is more important in determining a compound’s melting points, polarity or molar mass? Why?

Answers

Both polarity and molar mass affect the melting points of a compounds. However, polarity is more prioritized for compounds of similar molar mass. The order of increasing melting point follows: non-polar < polar < ionic.

Ionic compounds have the strongest forces holding them which is why it requires higher temperature to overcome those forces. Next, polar substances have weaker electrostatic forces than ionic compounds, but have stronger forces than non-polar compounds due to the presence of dipole-dipole interaction. The force present in non-polar compounds is Van Der Waals forces.

in determining a compound's melting points, polarity is more important

Every compound is contained by molecules.

Polarity determine how much energy is needed to break these molecules, meanwhile molar mass only determine the weight of the molecules. Even though molar mass do affecting the boiling point, it's not as much as the basic resistance of the separation of inter molecular forces does.

Identify the atom oxidized, the atom reduced, the oxidizing agent, and the reducing agent. 2Fe + 3V2O3 -------> Fe2O3 + 6VO

Answers

In the given reaction, Fe is the reducing agent and V is the oxidizing agent.

What is a reducing agent?

An atom or compound that loses its electrons to other substances in a reduction-oxidation reaction and gets oxidized to a higher valency state is called a reducing agent.

A reducing agent can be defined as one of the reactants of a redox reaction that reduces the other reactant by giving its electrons to the reactant. If the reducing agent can not give away its electrons to others in a reaction, then the reduction reaction cannot occur.

Given, the following chemical reaction:

2Fe + 3V₂O₃ → Fe₂O₃ + 6VO

The V₂O₃ oxidation state of V:

2 x + 3(-2) = 0

2x = 6

x = + 3

The Fe₂O₃ oxidation state of Fe:

2 y + 3 (-2) = 0

2y = 6

y = + 3

The V acts as an oxidizing agent because it accepts one electron to change the oxidation state from +3 to +2.

Fe acts as a reducing agent because it gives out its electrons to change the oxidation state from 0 to +3.