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puteri [66]
3 years ago
14

I'll mark brainliest if you can answer this quick and correctly only correct cause i don't accept bad answers or i'll report you

if i get a bad grade
'

Chemistry
1 answer:
bija089 [108]3 years ago
8 0
3) A
4) C
brainliest ?
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If a gas occupies a volume of 6.6 L at 16.0 °C, at what temperature, in °C, will it occupy a volume of 8.9 L if the pressure rem
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Answer:

ok

Explanation:

5 0
3 years ago
How many grams of KCl is needed to make .75 L of a 1 M solution of KCl?
Zielflug [23.3K]

Answer:

The answer to your question is 25.9 g of KCl

Explanation:

Data

Grams of KCl = ?

Volume = 0.75 l

Molarity = 1 M

Formula

Molarity = \frac{number of moles}{volume}

Solve for number of moles

Number of moles = Molarity x volume

Substitution

Number of moles = 1 x 0.75

Simplification

Number of moles = 0.75 moles

Molecular mass KCl = 39 + 35.5 = 34.5

Use proportions to find the grams of KCl

                          34.5 g of KCl ----------------  1 mol

                             x                  ----------------  0.75 moles

                            x = (0.75 x 34.5) / 1

                            x = 25.9 g of KCl

3 0
3 years ago
What is a property that describes how easily a substance undergoes chemical changes?
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Reactants are the substances that undergo changes and the new substance created from it is called products.
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3 years ago
Draw the structure of 5 bromo 1,1,1-trichloro-5 ethyl <br> 2,3 di methyl heptane
andre [41]

5 bromo 1.1.1 -trichloro -5 ethyl 2.3 dimethyl heptane

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7. Wind, moving water, falling rocks, and roller-skating children are all examples of -​
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kinetic energy

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