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stepladder [879]
2 years ago
10

Why is productivity greatest near the ocean’s surface

Chemistry
1 answer:
Kobotan [32]2 years ago
5 0

Answer:

Sunlight penetrates the top layers of the ocean, so photosynthesis occurs there.

Explanation:

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Write a double replacement precipitation reaction A precipitate forms when aqueous solutions of nickel(II) chloride and silver(I
harkovskaia [24]

<u>Answer:</u> The balanced chemical equation is written below.

<u>Explanation:</u>

Double displacement reaction is defined as the reaction in which exchange of ions takes place.

AB+CD\rightarrow CB+AD

Precipitation reaction is defined as the reaction in which an insoluble salt is formed when two solutions are mixed containing soluble substances. The insoluble salt settles down at the bottom of the reaction mixture.

When nickel (II) chloride reacts with silver (I) nitrate, it leads to the formation of white precipitate of silver chloride and an aqueous solution of nickel (II) nitrate.

The balanced chemical equation for the above reaction follows:

NiCl_2(aq.)+2AgNO_3(aq.)\rightarrow 2AgCl(s)+Ni(NO_3)_2(aq.)

By Stoichiometry of the reaction:

1 mole of aqueous solution of nickel (II) chloride reacts with 2 moles of aqueous solution of silver (I) nitrate to produce 2 moles of solid silver chloride and 1 moles of aqueous solution of nickel (II) nitrate

Hence, the balanced chemical equation is written above.

3 0
3 years ago
Which of the following are examples of physical change? Copper oxidizing Iron rusting Carbon dioxide sublimating Water evaporati
kari74 [83]
Carbon dioxide sublimation
water evaporate

physical change is just change between solid/liquid/gas, other two are chemical changes
6 0
3 years ago
8. As the temperature of a mixture increases, one part of the mixture may 2 points
disa [49]

Answer:

It's false

Explanation:

Mixtures are always combinations of the same compounds that are at different states.

8 0
3 years ago
I DARE YALL TO JOIN THIS MEET CODE IS cdabauer JOIN THEN HURRY UP AND LEAVE AND YOU WILL GET BRAINLY​
Aleonysh [2.5K]

Answer:

nah but ill take points tho

Explanation:

4 0
2 years ago
Read 2 more answers
Why is a quantitative observation more useful than a non- quantitative one? Which of the following are quantitative?
daser333 [38]
A quantitative observation is not necessarily more useful than a non-quantitative one. However, quantitative observations do allow one to find trends.

(a), the sun rising is a non-quantitative observation.

(b), knowledge of the numerical relationship between the weight on the Moon and on Earth, is a quantitative observation.

(c), watching ice float on water does not involve a measurement; therefore, it must be a qualitative observation.

(d) the fact that we know that the water pump won’t work for depths more than 34 feet makes it quantitative. Again, seeing numbers is a giveaway that it’s a quantitative <span>observation. Quantitative is where you deal with numbers.</span>
7 0
3 years ago
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