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2 years ago

Okay this is the only way to get my answers

Chemistry

1 answer:

cupoosta [38]2 years ago

7 0

Answer:

Your answer is Answer thank me later :) <3

Explanation:

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The setup below was used to investigate the reaction between metals and water

Neporo4naja [7]

Answer:

I hope it helps you

Explanation:

make me brainlest

8 0

3 years ago

What is the mass of 0.2 moles of ethanol

Verdich [7]

Answer:

Answer is 9.2 grams

Explanation:

Molar mass of ethanol

${ \bf{CH _{3}CH_{2}OH}} = (12 \times 2) + (6 \times 1) + (16) \\ = 46 \: g$

for moles:

${ \sf{1 \: mole \: of \: ethanol \: weighs \: 46 \: g}} \\ { \sf{0.2 \: moles \: weigh \: (0.2 \times 46) \: g}} \\ = 9.2 \: g$

4 0

3 years ago

HELP ASAP!!! Plzzz

Scrat [10]

36 Oxygen atoms !!!!!!

5 0

3 years ago

What is an adaptation?

Oksana_A [137]

Answer:

here is your answer.

Hope it helps you.

Mark ME AS BRAINLIEST PLS

3 0

3 years ago

How many grams of H2O are in 34.2 grams of NAOH Need ASAP

Brrunno [24]

Answer:

15.438g H2O

Explanation:

First you need to find the reaction equation:

2H2O+2Na=2NaOH + H2

Hydrogen is a diatomic molecule so it will have a subscript of 2 on the right hand side. From there we can balance the reaction.

Then we can use stoichiometry:

34.2g NaOH * (1 mol NaOH/39.908g NaOH) * (2 mol H2O/2 mol NaOH) * (18.015g H2O/1 mol H20) = 15.438g H2O

It is important that when you use stoichiometry that all your units cancel out until you only have the unit you want.

3 0

3 years ago