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2 years ago

Complete by describing what the change of the state of the matter will be for the process to occur

Chemistry

1 answer:

Brilliant_brown [7]2 years ago

4 0

Answer:

Freezing: Liquid turns into solid. Evaporation: Liquid turns into gas. Condensation: Gas turns into liquid. Sublimation: solid into gas. Deposition: Gas into solid.

Explanation:

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The figure represents a solid block of copper metal in a beaker at 30°C Which of the following best represents the particle arra

maria [59]

Answer:

Explanation:

i think it is 30

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2 years ago

You have 363 mL of a 1.25M potassium chloride solution, but you need to make a 0.50M potassium chloride solution. How many milli

maxonik [38]

Answer:- 544.5 mL of water need to be added.

Solution:- It is a dilution problem. The equation used for solving this type of problems is:

$M_1V_1=M_2V_2$

where, $M_1$ is initial molarity and $M_2$ is the molarity after dilution. Similarly, $V_1$ is the volume before dilution and $V_2$ is the volume after dilution.

Let's plug in the values in the equation:

$1.25M(363mL)=0.50M(V_2)$

$V_2=\frac{1.25M(363mL)}{0.50M}$

$V_2=907.5mL$

Volume of water added = 907.5mL - 363mL = 544.5 mL

So, 544.5 mL of water are need to be added to the original solution for dilution.

3 0

2 years ago

Draw the structures of two stereoisomeric alkenes that would give 3-hexanol as the only major product of hydroboration followed

soldi70 [24.7K]

Answer:

cis-3-hexene and trans-3-hexene

Explanation:

Hydroboration oxidation is a method of preparation of alcohol from alkene.

Hydroboration follows anti-Markovnikoff rule in which alcohol group attached to less substituted carbon. Stereochemistry of the product is always syn that is H and OH attached to the same side of the double bond.

cis-3-hexene and trans-3-hexene undergoes hydroboration to form 3-hexanol.

7 0

2 years ago

Cu2o+C➡Cu+Co2 what is the balance chemical equation

denis23 [38]

<span>4 Cu2O + C2 = 8 Cu + 2 CO2 </span><span>Reaction type: single replacement i hope this hopes

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2 years ago

Cells take in small, energy-rich molecules from food. These molecules include sugar molecules. Cells use the molecules in a long

Solnce55 [7]

Answer:

1,2, and 3 are correct.

Explanation:

1 is true because cellular respiration begins in the cytoplasm of a cell. 2 is true because cellular respiration releases energy aerobically which uses glucose and oxygen or anaerobically which just uses glucose. Either way, energy is being released. 3 is true, I don't know how to explain why. Just keep the cellular respiration equation in mind, (C6H12O6 + 6O2 → 6CO2 + 6H2O + Chemical Energy (in ATP)), the chemical reactions are basically summed up into an equation. Hope that helped.

4 0

2 years ago