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Elanso [62]
2 years ago
6

Imagine that you are in charge of helping a town named

Chemistry
2 answers:
USPshnik [31]2 years ago
8 0
D or B probably the only possibilities
sp2606 [1]2 years ago
5 0

Answer:

Biomas is the answer

I am sure about it

just go for it

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You have 500 mL of 5 M HCl already made. You need to dilute the solution to 1 M HCl. How much water will you need to add?
hram777 [196]

Answer:

You need to add 400mL of water

Explanation:

500mL = 5 M HCI     That means that if you divide both sides by 5

100mL = 1 M HCI         If you need ot get rid of 4 M HCI then you add 400 mL of water because that is what it is equal to

5 0
3 years ago
100 POINTS PLEASE HELP (PHOTOS INCLUDED)
pshichka [43]

Answer:

Explanation:

3.

Knowns: 100mL of solution; concentration of 0.7M

Unknown: number of moles

Equation: number of moles = volume * concentration

Plug and Chug: number of moles = 100/1000 * 0.7 = 0.07 mole

Final Answer: 0.07mole

2.

Knowns: 5.50L of solution; concentration of 0.400M

Unknown: number of moles

Equation: number of moles = volume * concentration

Plug and Chug: number of moles = 5.5 * 0.4 = 2.20 mole

Final Answer: 2.20 mole

6 0
2 years ago
Read 2 more answers
Zinc, sulphur, oxygen<br> What would this compound be called?
Nataliya [291]

Zinc sulphate

Zinc sulphateZnSO₄

This is the answer.

6 0
2 years ago
PLZ HELP! Give me a really (winner) good idea for a kids science fair! My little sister has to do one through my school and I ne
OverLord2011 [107]

Explanation:amiga

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8 0
3 years ago
A 35 L tank of oxygen is at 315 K with an internal pressure of 190 atmospheres. How many moles of gas does the tank contain?​
VikaD [51]
N = PV = (190 atm)(35 L) = 260 moles of gas RT (0.0821 L.atm/mol.K)(315 K)
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3 years ago
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