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tia_tia [17]
3 years ago
7

Chemical reactions that ____ energy will not occur without a source of energy

Chemistry
1 answer:
andrezito [222]3 years ago
4 0
Chemical reactions that release energy will not occur without a source of energy.  So the answer is release.
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Olenka [21]

opinion and belief mean a judgment that someone thinks is true. ... belief is used if the judgment is certain and firm in a person's own mind without regard to the amount or kind of evidence.

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3 years ago
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HELP PLEASEEE <br>it's for an exam on monday​
zhannawk [14.2K]

From the stoichiometry of the reaction, we can see that the volume of carbon monoxide reacted is 44.8 L.

<h3>What is stoichiometry?</h3>

Stoichiometry is used to obtain the amount of substance reacted or the amount of product formed.

Number of moles of CO2 in 88g = 88g/4 g/mol = 2 moles

Molar mass of carbon monoxide = 12 + 16 = 28g/mol

We can see that 1 mole of oxygen was used in the reaction hence the mass of oxygen used is 32 g/mol. Given the stoichiometry of the reaction, 28g of carbon monoxide was burned.

If 1 mole of a gas occupies 22.4 L

2 moles of a gas occupies 2 moles  * 22.4 L/1 mole

= 44.8 L

Learn more about stoichiometry:brainly.com/question/9743981

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3 years ago
3. Explain why an aluminum ion (A13+) is smaller than a sodium ion (Na+).
IceJOKER [234]

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Explanation:

8 0
2 years ago
A sugar solution is 15% pure. How
Arada [10]

Answer:

Amount of sugar in solution = 82.5 gram

Explanation:

Given:

Sugar in solution percentage = 15%

Total solution = 550 grams

Find:

Amount of sugar in solution

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Amount of sugar in solution = Sugar in solution percentage x Total solution

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8 0
3 years ago
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frez [133]

Answer:

22.9 Liters CO(g) needed

Explanation:

2CO(g)     +   O₂(g)    =>    2CO₂(g)

? Liters          32.65g

                 = 32.65g/32g/mol

                 =   1.02 moles O₂

Rxn ratio for CO to O₂ = 2 mole CO(g) to 1 mole O₂(g)

∴moles CO(g) needed = 2 x 1.02 moles CO(g) = 2.04 moles CO(g)

Conditions of standard equation* is STP (0°C & 1atm) => 1 mole any gas occupies 22.4 Liters.

∴Volume of CO(g) = 1.02mole x 22.4Liters/mole = 22.9 Liters CO(g) needed

___________________

*Standard Equation => molecular rxn balanced to smallest whole number ratio coefficients is assumed to be at STP conditions (0°C & 1atm).

6 0
3 years ago
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