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2 years ago

Hello! Could somebody please help? Thanks!! Will give brainliest and 38 points!!!

Chemistry

2 answers:

Goryan [66]2 years ago

4 0

Answer:

thousands

Explanation:

here is why because think about it most oceans are measured by how much goes in it every day by the thousands of gallons of sea water so i hope this helps you understand your question

Feliz [49]2 years ago

4 0

Answer: 35 parts per thousand.

Explanation: How much salt in a sea is measured in parts. So, meaning by that, it is measured by 35 parts per thousand. It's use as the grams of salt in the water, which is 1,000 grams of salt in water. 35 grams of salty water is equal to 1 kilogram of seawater.

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Answer:

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3 years ago

Balanced nuclear equation, what two things must be conserved

In-s [12.5K]

If you only want to balance nuclear reactions, then you should know that number of nucleons are conserved before and after nuclear reaction. Also, charge is conserved as well.
Other things which are conserved in a nuclear reaction are:
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1. Parity
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7 0

3 years ago

The sea water has 8.0x10^-1 cg of element strontium. Assuming that all strontium could be recovered, how many grams of strontium

PilotLPTM [1.2K]

984 grams of strontium will be recovered from 9.84x10^8 cubic meter of seawater.

Explanation:

From the question data given is :

volume of strontium in sea water= 9.84x10^8 cubic meter

(1 cubic metre = 1000000 ml)

so 9 .84x10^8 cubic meter

$\frac{9 .84x10^8}{1000000}$ = 984 ml.

density of sea water = 1 gram/ml

from the formula mass of strontium can be calculated.

density = $\frac{mass}{volume}$

mass = density x volume

mass = 1 x 984

= 984 grams of strontium will be recovered.

98400 centigram of strontium will be recovered.

Strontium is an alkaline earth metal and is highly reactive.

4 0

3 years ago