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Mrac [35]
3 years ago
7

Give two reasons why quarrying is bad for the environment?

Chemistry
1 answer:
Oksi-84 [34.3K]3 years ago
8 0
1) The longer the quarrying goes on the less and less recources we will have, soon leading to no more recources 
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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
Viruses are not considered living things because they are not cellular and they __________.
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Must have host cell to reproduce
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The answer for this question is D.
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6b<br> Which of the following is a starting compound during<br> cellular respiration?
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Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.Jun 1, 2020

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