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maksim [4K]
3 years ago
6

Complete the equation for respiration: Oxygen + ________ ---> carbon dioxide + energy + water *

Chemistry
1 answer:
Tom [10]3 years ago
5 0

Answer:Sunlight

Explanation:

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How is helium different from other noble gases?
Slav-nsk [51]
Helium only possesses two valence electrons, while the other noble gasses posses eight
3 0
3 years ago
A chemical reference book says that substance x is not soluble in water
oksano4ka [1.4K]
<span>The normal dividing line for soluble/not soluble is 0.1 M. 

If a substance, as a saturated solution at room temp and pressure, cannot form a solution concentration of 0.1 M, then it is considered insoluble. 

The 0.1 M figure was selected because _most_ substances are either well above that value or well below. Some substances (calcium hydroxide is one? not sure) come close to the 0.1 M dividing line but there are only a very few.</span><span>  
but most likely it wont mix</span>
7 0
3 years ago
what is the total amount of energy absorbed by the substance as it completely changes from a solid at 40 degrees to a gas at 200
astra-53 [7]

Answer:

I don't know the answer sorry man

6 0
3 years ago
matter that is composed of two or more different elements chemically combined in a fixed proportion is classified as
Helga [31]

Answer: The answer for this is Compound.

Explanation: A matter is something which occupies space and has some mass.

Elements are defined as the smallest substances which cannot be broken down into another substance by any chemical means.

A compound is a defined as a substance composed of two or more different elements when they combine chemically in definite proportion. For example: CO_2 is named as carbon dioxide and is a compound made by combining carbon and oxygen in a fixed ratio of 1 : 2

So, the answer to the given question is compound.

5 0
3 years ago
Which neutral element does the orbital diagram represent?
valentinak56 [21]

Answer:

Silicon

Explanation:

The total of electrons: 2 + 2 + 6 + 2 + 2

In neutral state: #electrons = #protons = 14

so element with atomic number of 14 is silicon

3 0
1 year ago
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