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lora16 [44]
2 years ago
15

What is a community of interacting organisms and their environment called?

Chemistry
1 answer:
ivann1987 [24]2 years ago
6 0

                                        .+.*~+ Ecosystem +~*.+.

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Why is the chemical formula magnesium sulfide written as MgS and NOT Mg2S2?
Anna71 [15]

Explanation:

The chemical formula magnesium sulfide written as MgS and NOT Mg_{2}S_{2} because charge on magnesium ion is +2 and charge on sulfide ion is -2.

Therefore, these charges will cancel out each other as we write the formula in simplest crisscross  method.

Also, the numbers in a chemical formula display the total number of atoms attached with each other or central atom.

For example, in CaCl_{2} there are two chlorine atoms attached to one calcium atom.

Therefore, MgS denotes one sulfur atom is attached to magnesium atom. Hence, we do not write the formula of magnesium sulfide as Mg_{2}S_{2} because this shows two magnesium atoms are attached to two sulfur atoms which is not true.

8 0
3 years ago
Read 2 more answers
What is a hypothesis
babunello [35]

a hypothesis is an idea or explanation that you then test through study and experimentation

3 0
3 years ago
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In at least three sentences, explain three disadvantages associated with hydrogen fuel use.
Dmitry_Shevchenko [17]

Here are some disadvantages, is that nitrogen dioxide is a toxic gas and it can still be harmful when ingested by human, also critics of hydrogen fuel cells argue that although these cells do not emit carbon after burning, they give out nitrogen dioxide and other emissions.

Hope this helps

7 0
3 years ago
An average bushel of apples has a mass of 10 kg and contains 5 dozen apples.
Alina [70]

Answer:

Average mass of 6 apple  = 1 kg

Explanation:

Given:

Average mass of 5 dozen apple = 10 kg

Find:

Average mass of 6 apple

Computation:

Average mass of 6 apple  = [Average mass of 1 apple] x [6 apple]

Average mass of 6 apple  = [10/(12 x 5)] x [6]

Average mass of 6 apple  = 1 kg

3 0
2 years ago
In a desert, soil containing a mixture of sand and small rocks is exposed to wind erosion. Over time, how would the land surface
amid [387]
Sand dunes would be created due to the mixture falling on each other
x
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3 years ago
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