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ycow [4]
3 years ago
14

3. Describe how the water at the equator would be different from the water at the poles.

Chemistry
1 answer:
Dmitry_Shevchenko [17]3 years ago
7 0

Answer:

there is a distinct decrease of salinity near the equator and at both poles, although for different reasons. Near the equator, the tropics receive the most rain on a consistent basis. As a result, the fresh water falling into the ocean helps decrease the salinity of the surface water in that region.

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When a test instrument is calibrated, does its accuracy, precision, or reliability improve?
My name is Ann [436]

The answer is accuracy.

That is when a test instrument is calibrated, its accuracy is improved. That is the result comes more close to what it is.

The other factor will not be improved that is its reliability and precision remains the same.

So the answer is accuracy is improved when a test instrument is calibrated.

8 0
4 years ago
Consider the following first order decomposition reaction with a half-life of 65 seconds at a given temperature:
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In a chemical reaction, __________ are the substances present after the reaction.
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4 0
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Read 2 more answers
How many grams of Cl2 are needed to produce 2.4 grams of NaCl?<br> 2Na + Cl2 2NaCl
Rashid [163]

Answer:

The answer to your question is 1.46 g of Cl₂

Explanation:

Data

mass of Cl₂ = ?

mass of NaCl = 2.4 g

Chemical reaction

                              2Na  +  Cl₂  ⇒   2NaCl

Process

1.- Calculate the molar mass of chlorine and sodium chloride

Molar mass Cl₂ = 2 x 35.5 = 71 g

Molar mass of NaCl = 23 + 35.5 = 58.5 g

2.- Use proportions to solve this problem

                       71g of Cl₂ --------------------- 2(58.5g) NaCl

                         x             --------------------- 2.4 g

                         x = (2.4 x 71) / 2(58.5)

                         x = 170.4 / 117

                         x = 1.46 g of Cl

7 0
3 years ago
A student the mass of 8 cm3 block of brown sugar to be 12.9 g. What is the density of the brown sugar
antoniya [11.8K]
12,9 g of sugar-----------------8cm3
x g of sugar ------------------- 1cm3
<u>x = 1,613g/cm3 <<< density</u>
8 0
4 years ago
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