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Anna71 [15]
3 years ago
6

This equation indicates that the reaction absorbs heat. What is this type of reaction called? H2O + heat → H2 + O2 A. an exother

mic reaction B. a combustion reaction C. an endothermic reaction D. a heat-releasing reaction
Chemistry
1 answer:
Anastaziya [24]3 years ago
7 0
The answer is C. an endothermic reaction. The endothermic reaction means this reaction will absorb energy and exothermic reaction means this reaction will release energy.
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Pubhvcghbb<br> Jgyukbcu?
tino4ka555 [31]

Answer:

WHAT??

Explanation:

3 0
3 years ago
Read 2 more answers
7. Suppose 1.01 g of iron (III) chloride is placed in a 10.00-mL volumetric flask with a bit of water in it. The flask is shaken
Nana76 [90]

<u>Answer:</u> The molarity of Iron (III) chloride is 0.622 M.

<u>Explanation:</u>

Molarity is defined as the number of moles present in one liter of solution.  The equation used to calculate molarity of the solution is:

\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}

Or,

\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}

We are given:

Mass of iron (III) chloride = 1.01 g

Molar mass of iron (III) chloride = 162.2 g/mol

Volume of the solution = 10 mL

Putting values in above equation, we get:

\text{Molarity of Iron (III) chloride}=\frac{1.01g\times 1000}{162.2g/mol\times 10mL}\\\\\text{Molarity of Iron (III) chloride}=0.622M

Hence, the molarity of Iron (III) chloride is 0.622 M.

3 0
3 years ago
Is chemical a example of natural forces
Nastasia [14]
The only types of natural forces are gravitation, electromagnetism, the weak interaction, and the strong interaction. So no, chemical is not an example of a natural force.
I hope this helps.
7 0
3 years ago
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If a 1.85 g mass of zinc produces 475 mL of gas and your balloon weighs 0.590 g and the room temperature is 23.5°C. Calculate th
ser-zykov [4K]
I came up with a required balloon volume of 476 before adding the extra 1 mL.
3 0
3 years ago
Which of the following statements is false? Vapor refers to a gas formed by evaporation of a liquid or sublimation of a solid. S
tamaranim1 [39]

Answer: Option (b) is the correct answer.

Explanation:

Vapor refers to the conversion of liquid state of a substance into gaseous state or conversion of a solid state into gaseous state.

Density of ice (solid state of water) is less than the density of liquid state of water. This is because there are spaces present in the crystal lattice of ice due to which it has less mass.

As a result, it has low density and hence, it floats on the surface of water.

Thus, we can conclude that the statement Solid water (ice), unlike most substances, is denser than its liquid form (water), is false.

6 0
3 years ago
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