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My name is Ann [436]
4 years ago
11

Helpppppp pls pls pls pls pls chem

Chemistry
1 answer:
Schach [20]4 years ago
3 0

Answer: Benzaldehyde

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Does a nebula have mass
allochka39001 [22]

nebula is an interstellar cloud of dust, hydrogen, helium and other ionized gases. although denser than the space surrounding them, most nebulae are far less dense than any vacuum created on earth – a nebular cloud the size of the earth would have a total mass of only a few kilograms. (wikipedia)

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Name the two gases that make up most of the air.<br>​
ddd [48]

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Air is mostly gas

The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen. Air also has small amounts of lots of other gases, too, such as carbon dioxide, neon, and hydrogen.

Explanation:

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2 years ago
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How do you balance the following solution Zn(s)+HCI(aq)—&gt;ZnCI2 (aq) + H2(g)
Ierofanga [76]

<u>Answer:</u> The atoms of every element on both the sides of the reaction must be same.

<u>Explanation:</u>

We are given a chemical equation and we need to balance it. Every equation follows Law of Conservation of mass.

This law states that in a chemical reaction, the number of atoms of each element must be same on both the sides of the equation.

For the given chemical equation:

Zn(s)+HCl(aq)\rightarrow ZnCl_2(aq)+H_2(g)

On reactant side:

Number of zinc atoms = 1

Number of hydrogen atoms = 1

Number of chlorine atoms = 1

On product side:

Number of zinc atoms = 1

Number of hydrogen atoms = 2

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As, the number of hydrogen and chlorine atoms on reactant and product side is not same, so we need to add a stoichiometric coefficient in-front of HCl on the reactant side. The balanced chemical equation becomes:

Zn(s)+2HCl(aq)\rightarrow ZnCl_2(aq)+H_2(g)

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How much momentum does a 500-kilogram mass have if it's not moving?
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How much momentum does 5000 kilogram have
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The pathway by which carbon is transferred from living organisms to the atmosphere is called:
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cellular respiration

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All exergonic processes produced in the cell, through which substances oxidize and chemical energy is released, are grouped under the name of cellular respiration, but to break down an organic molecule the cells employ, mainly dehydrogenations that can be carried carried out in the presence or absence of atmospheric O2 oxygen. There are therefore two types of breathing: aerobic respiration and anaerobic respiration. The latter also called fermentation.

Aerobic respiration  (oxidative phosphorylation)

- Use molecular O2.

- It degrades glucose to CO2 and H2O

- Exergonic

- Recovers about 50% of chemical energy

- Present in most organisms.

- It uses enzymes located in the mitochondria.

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