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3 years ago

The Statue of Liberty changing from Copper to Green is an example of...

Chemistry

1 answer:

Troyanec [42]3 years ago

4 0

Answer:

answering this for points! Sorry! but its probably A OR C

Explanation:

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Which of the following is an incorrect name for an acid? A. acetic acid B. hydrocarbonate acid C. hydrocyanic acid D. sulfurous

just olya [345]

Answer:

The answer to your question is letter B

Explanation:

Incorrect name

A. acetic acid This name is correct for the acid with formula CH₃COOH

B. hydrocarbonate acid This is not the name for acid but for a molecule that has hydrogen and a metal.

C. hydrocyanic acid This name is correct for the inorganic molecule with formula HCN

D. sulfurous acid This name is correct and is the name of the inorganic molecule with formula H₂SO₃.

E. phosphoric acid This name is correct for the acid with formula H₃PO₄.

5 0

3 years ago

What is the name of the compound that has the formula Li2SO3?

Oduvanchick [21]

The answer is A lithium sulfite

7 0

4 years ago

Read 2 more answers

Assume you mix 100.0 mL of 200 M CsOH with 50.0 mL 0f 0.400 M HCl in a coffee cup calorimeter. A reaction occurs. The temperatur

Varvara68 [4.7K]

Answer:

The enthalpy change for the reaction per mole of CsOH is -56.1 kJ/mol

Explanation:

Step 1: Data given

Volume of a CsOH solution = 100.0 mL

Molarity of a CsOH solution = 0.200 M

Volume of HCl solution = 50.0 mL

Molarity of HCl solution = 0.400M

The temperature of both solutions before mixing was 22.50 °C, and it rises to 24.28 °C after the acid-base reaction.

Density = 1.00 g/mL

Specific heat = 4.2 J/gK = 4.2 J/g°C

Step 2: The balanced equation

CsOH + HCl → CsCl + H2O

Step 3: Calculate the energy

Q = m*c*ΔT

⇒with Q = the heat transfer = TO BE DETERMINED

⇒with m = the mass of the solution = (100+ 50 mL) * 1.00 g/mL = 150 grams

⇒with c = the specific heat of the solution = 4.2 J/g°C

⇒with ΔT = The change of temperature = T2 - T1 = 24.28 °C - 22.50 °C = 1.78 °C

Q = 150 grams * 4.2 J/g°C * 1.78 °C

Q = 1121.4 J

Step 4: Calculate moles CsOH

Moles CsOH = molarity CsOH * volume CsOH

Moles CsOH = 0.200M * 0.100 L

Moles CsOH = 0.0200 moles

Step 5: Calculate the enthalpy change for the reaction per mole of CsOH

ΔH is negative since this is an exothermic reaction

ΔH = -Q/moles

ΔH = -1121.4 J / 0.0200 moles

ΔH = -56070 J/mol = -56.1 kJ/mol

The enthalpy change for the reaction per mole of CsOH is -56.1 kJ/mol

4 0

4 years ago

You will first investigate 5 diatomic molecules. Diatomic molecules are made up of 2 atoms.

GenaCL600 [577]

Answer:

Here's what I get

Explanation:

1. Fluorine

a. Each fluorine atom has seven valence electrons.

b. Fluorine is a nonmetal.

c. The combination of these atoms creates a covalent bond.

d. The atoms share a pair of valence electrons.

e. In the ionic bond, an electron moved from one atom to the other one.

f. The molecule forms a straight line.

2. Oxygen

a. Each oxygen atom has six valence electrons.

b. Oxygen is a nonmetal.

c. The combination of these atoms creates a covalent bond.

d. The atoms share two pairs of valence electrons.

e. The bond has four electrons instead of two.

f. The molecule forms a straight line.

8 0

3 years ago

Please answer on paper and send a picture of the answer. thank you

avanturin [10]

Answer:

I dont know how to take a picture so I will just tell you the answer. The answer is no.

Explanation:

Hope this helps. :) :D

8 0

3 years ago