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trapecia [35]
3 years ago
10

Q9. Many communities in Canada take their drinking water from rivers,

Chemistry
1 answer:
Gre4nikov [31]3 years ago
5 0

Answer:

The people in Canada who take their water from unfiltered water, and the people who just drink from rivers, lakes or reservoirs have to understand how chemicals are transported in surface water because when the chemicals are transported, they can be inhaled without knowing.

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A) Identify which one of the particles is <br>I) an anion. <br><br>2) a cation ​
yulyashka [42]

Answer: Particle F is an anion, and particle E is a cation

Explanation:

A particle is a cation if it has more protons  than  electrons.

A particle is an anion if it has more electrons than protons.

Hope it helps :) and let me know if you want me to elaborate.

5 0
3 years ago
Air-bags can be inflated by the decomposition of sodium azide, NaN3. At 25.0◦C and 1.10 atm, what volume of N2(g) is produced by
Mashcka [7]

Answer:

V = 36.7L of N_{2}

Explanation:

1. Write the chemical reaction for the decomposition of sodium azide:

_{2}NaN_{3}(l)=_{2}Na(s)+_{3}N_{2}(g)

2. Find the number of moles of N_{2} produced by the decomposition of 71.4g of NaN_{3}:

71.4gNaN_{3}*\frac{1molNaN_{3}}{65gNaN_{3}}*\frac{3molesN_{2}}{2molesNaN_{3}}=1.65molesN_{2}

3. Use the ideal gas equation to find the Volume of N_{2} occupied by 1.65 moles of N_{2}, at the temperature and pressure given by the problem:

PV=nRT

Solving for V:

V=\frac{nRT}{P}

Converting the temperature from ◦C to K:

25◦C+273.15=298.15K

Replacing values:

V=\frac{1.65mol*(0.082\frac{atm.L}{mol.K})*298.15K}{1.10atm}

V=36.7L of N_{2}

4 0
3 years ago
You wash dishes for a chemistry laboratory to make extra money for laundry. You earn 12 dollars/hour, and each shift lasts 75 mi
PIT_PIT [208]
You calculate the amount of loads of laundry as follows:

((6 x 0.25)/ load) x 10 loads = 15.00 total cost required for laundry 

<span>(6.00 / 60 min) x (75 min/shift) = 7.50 cost / shift </span>

15.00 / (7.50 / shift) = 2 loads of  laundry

Hope this answers the question.
4 0
4 years ago
Read 2 more answers
The iupac name this compound​
MrRa [10]

Answer:

It's <em>HYDROXIDE</em><em> </em>

Explanation:

You do not call it as hydroxide <em>ion</em><em> </em>because ion always have + or -

I hope this helps

HAVE A GOOD DAY!

5 0
3 years ago
Read 2 more answers
The dissolution of calcium chloride in water is given by the following equation:
never [62]

Answer:

The reactants would appear at a higher energy state than the products.

Have a nice day!

8 0
3 years ago
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