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GenaCL600 [577]
3 years ago
10

What three factors affect the biodiversity of an ecosystem

Chemistry
2 answers:
Korolek [52]3 years ago
5 0
<span>Factors that affect biodiversity in an ecosystem include area,climate,diversity of niches,and keystone species.</span><span />
lions [1.4K]3 years ago
4 0
<span>area, climate, diversity of niches, and keystone species.</span>
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Which one of the following substances is a liquid fuel used in rocket engines?
kotegsom [21]

Must be C because the liquid fuel is Codium nitrate to be used in rocket engines

6 0
3 years ago
Read 2 more answers
What is the mass, in grams, of two liters of water?
erma4kov [3.2K]
Well, 2 litres is 2 kilograms. 1000 grams = 1 kilogram

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3 0
3 years ago
What volume of a 0.2089 M KI solution contains enough KI to react exactly with the Cu(NO3)2 in 40.88 mL of a 0.3842 M solution o
tatyana61 [14]

Explanation:

As molarity is the number of moles placed in a liter of solution. Therefore, no. of mole = Molarity × volume of solution in liter

Hence, moles of Cu(NO_{3})_{2} will be calculated as follows.

No. of mole of Cu(NO_{3})_{2} = 0.3842 M \times 0.04388 L = 0.0168 mole

According to the given reaction, 2 mole of Cu(NO_{3})_{2} react with 4 mole of KI.

Therefore, for 0.0168 mole amount of Cu(NO_{3})_{2} required will be as follows.

Cu(NO_{3})_{2} = 0.0168 \times \frac{4}{2}

                       = 0.0337 mole of KI

Hence, volume of KI required will be calculated as follows.

               Volume = \frac{\text{no. of moles}}{Molarity}

    Volume of KI = \frac{0.0337}{0.2089}

                           = 0.1614 liter

                            = 161.4 ml            (as 1 L = 1000 mL)

Thus, we can conclude that 161.4 ml  volume of a 0.2089 M KI is required for the given situation.

5 0
3 years ago
A sample of neon effuses from a container in 38 s. The same amount of an unknown noble gas requires 77.5 s. What is the unknown
Leviafan [203]

Answer:

Krypton.

Explanation:

By Graham's Law:

Rate 1 / Rate 2 = sqrt M2 / sqrt M1

Molecular Mass for Neon  is 20.18

so we have:

38 / 77.5  =  sqrt 20.18 / sqrt x    where x is the unkown gas.

sqrt x = 9.162

x = 83.94.

This gas is Krypton.

8 0
4 years ago
What is the total number of valence electrons in ethyl acetate?
VashaNatasha [74]

Answer: There are 36 valence electrons.

Explanation:

7 0
2 years ago
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