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SOVA2 [1]
2 years ago
7

These mixed messages be impossable

Chemistry
2 answers:
lara [203]2 years ago
7 0
What...
Thanks for the points
Hitman42 [59]2 years ago
6 0

Answer:

What?

Explanation:

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How many grams of H2O are in 34.2 grams of NAOH<br> 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.

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2 years ago
The Geocentric and the Heliocentric models are descriptions of the universe known at the time when these models were developed.
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Answer:The Geocentric and the Heliocentric models are descriptions of the universe known at the time when these models were developed. The main difference between the two models is the perceived center of the known universe. According to the geocentric model, Earth is the center of the known universe

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2 years ago
What type of elements make up ionic bonds?
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Hey :)

Air pollution

Hope this helps!

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