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Kitty [74]
3 years ago
5

1. Which population of organisms depends on eating another population of organisms for

Chemistry
1 answer:
Aloiza [94]3 years ago
8 0

Answer:

predation

Explanation:

Predation An interaction in which one organism kills another for food. Prey An organism that is killed and eaten by another organism.

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Write the balanced half-equation describing the oxidation of mercury to hgo in a basic aqueous solution. Please include the stat
Cloud [144]

Answer:

Hg^0+2OH^-\rightarrow Hg^{2+}O+H_2O+2e^-

Explanation:

Hello,

In this case, mercury (II) oxide (HgO) is obtained via the reaction:

Hg(l)+O_2\rightarrow HgO

Nonetheless, since it is a reaction carried out in basic solution, mercury's half-reaction only, must be:

Hg^0+2OH^-\rightarrow Hg^{2+}O+H_2O+2e^-

Thus, it is seen that OH ionis should be added due to the basic aqueous solution considering that 2 electrons are transferred from 0 to 2 in mercury.

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8 0
3 years ago
Scientists are studying different jackets made for extremely cold, snowy weather. They are trying to find jackets
koban [17]

Answer:

Which jacket traps the most heat.

Explanation:

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3 years ago
If a balloon is filled with 20 cc of air at 25 c what will its volume be at 0
Lisa [10]
Yes the volume would be a big fat 0.0000
6 0
3 years ago
A medical lab is testing a new anticancer drug on cancer cells. The drug stock solution concentration is 1.5×10−9m, and 1.00 ml
Elis [28]

The concentration of the drug stock solution is 1.5*10^-9 M i.e. 1.5 * 10^-9 moles of the drug per Liter of the solution

Therefore, the number of moles present in 1 ml i.e. 1*10^-3 L of the solution would be =  1 *10^-3 L * 1.5 * 10^-9 moles/1 L = 1.5 * 10^-12 moles

1 mole of the drug will contain 6.023*10^23 drug molecules

Therefore, 1.5*10^-12 moles of the drug will correspond to :

    1.5 * 10^-12 moles * 6.023*10^23 molecules/1 mole = 9.035 * 10^11 molecules

The number of cancer cells = 2.0 * 10^5

Hence the ratio = drug molecules/cancer cells

                          = 9.035 *10^11/2.0 *10^5

                          = 4.5 * 10^6

8 0
3 years ago
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How to identify sodium hydroxide,hydrochloric acid,ans=d sugar solution when we only have blue litmus paper
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Turmeric solution turns red in contact with bases and is not affected by acids and neutral substances. Put one drop of each liquid as the turmeric paper. The liquid whose drop turns the paper red is solution hydroxide (base).
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3 years ago
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