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Agata [3.3K]
3 years ago
6

Help anyone????? Please

Chemistry
1 answer:
vivado [14]3 years ago
8 0

Answer:

#1 is protons electrons and neutrons

their respective parts are center, positive ,and no charge

#2 is positive charge, chemical properties

#3 is the number of protons, characteristics, same

#4 is atomic mass, average atomic mass

#5 is mass number, nucleus

Explanation:

no need to say thank tou i know ur in class

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What is stoichiometry in chemistry?
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Methane CH4 (g) reacts with oxygen gas to produce carbon dioxide and water. ____________________________________________________
nordsb [41]

<u>Answer:</u> The chemical equations are written below.

<u>Explanation:</u>

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The chemical equation for the combustion of methane follows:

CH_4(g)+2O_2(g)\rightarrow CO_2(g)+2H_2O(g)

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This is also an example of combustion reaction.

The chemical equation for the combustion of butane follows:

2C_4H_{10}(g)+13O_2(g)\rightarrow 8CO_2(g)+10H_2O(g)

  • <u>For c:</u> An aqueous solution of sulfuric acid reacts with aqueous potassium hydroxide to produce potassium sulfate and water.

When an acid reacts with a base, it leads to the formation of salt and water. This reaction is known as neutralization reaction

The chemical equation for the reaction of potassium hydroxide and sulfuric acid follows:

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4 0
3 years ago
A piece of silver releases 202.8 J of heat while cooling 65.0 °C. What is the mass of the sample? Silver has a specific heat of
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Explanation:

The quantity of heat energy (Q) released from a heated substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since,

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Thus, the mass of silver is 13 grams

7 0
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