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kap26 [50]
3 years ago
10

What is the value of Avogadro's constant?​

Chemistry
1 answer:
diamong [38]3 years ago
6 0

Answer:

6.02214154 x 1023

Explanation:

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Which body system processes food into a useable source of energy?
anastassius [24]

Answer:

Glucose, found in the food animals eat, is broken down during the process of cellular respiration into an energy source called ATP. When excess ATP and glucose are present, the liver converts them into a molecule called glycogen, which is stored for later use.

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3 years ago
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Which factors cause earth to experience seasons? Check all that apply.
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the speed of the earth's rotation, the tilt of the earth's axis and the directness of the sun

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3 years ago
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What is the mass of potassium chloride when 6.75 g of potassium reacts with an excess of chlorine gas? the balanced chemical equ
lorasvet [3.4K]
The balanced equation for the above reaction is;
2K + Cl₂ ---> 2KCl
Stoichiomtery of K to KCl is 2:2
Potassium is the limiting reactant which is fully consumed in the reaction. The amount of product formed depends on amount of limits reactant present.
Number of moles of K reacted - 6.75 g/ 39 g/mol = 0.17 mol
Therefore number of KCl moles formed - 0.17 mol
Mass of KCl formed - 0.17 mol x 74.5 g/mol = 12.67 g 
6 0
3 years ago
One isotope of a metallic element has the mass number 63 and 33 neutrons in the nucleus. The cation derived from the isotope has
katen-ka-za [31]

Given

Mass number of isotope = 63

Number of neutrons = 33

So number of protons = 63 - 33 = 30

Hence atomic number of metal = 30

thus metal is = zinc

now as it is forming cation with 28 electrons it means it has lost two electrons so it must have a dipositive charge

the symbol of metal ion will be

Zn^+2

7 0
3 years ago
What is the benefit of writing a net ionic equation instead of a formula equation?
brilliants [131]

Answer:

The correct option is The net ionic equation shows the spectator ions in the reaction.

Explanation:

The net ionic reaction will show us the ions which are involved in the reaction. It also helps us the charges present on each atom and how a reaction occurs due to these charges on atoms. It shows us that which ions actually take part in a chemical reaction and which ions do not take part in the reaction and are involved only for balancing the equation.

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3 years ago
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