The mass numbers for two isotopes are unequal because they have different numbers of

Chemistry

2 answers:

Savatey [412]4 years ago

8 0

Answer: It is so because they have different number of neutrons.

Explanation:

Isotopes are defined as the chemical species which have same number of protons but differ in the number of neutrons.

They have same atomic number but different atomic mass.

For Example: $_6^{12}\textrm{C},_6^{13}\textrm{C}\text{ and }_6^{14}\textrm{C}$ are the three isotopes of carbon.

The number of protons in all the three isotopes is same which is 6 and the number of neutrons in the three isotopes are 6, 7 and 8 respectively.

Hence, it is so because they have different number of neutrons.

SSSSS [86.1K]4 years ago

5 0

The mass numbers for two isotopes are unequal because they have different numbers of NEUTRONS.

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How much glycerol ( is liquid supplied at 100%) would you need to make 200 mL of 20% v/v (volume/volume) glycerol solution?

RSB [31]

Answer:

40mL of glycerol are needed to make a 20% v/v solution

Explanation:

This problem can be solved with a simple rule of three:

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4 years ago

Balance the following equations, and indicate whether they are combination, decomposition, or combustion reactions.1. C3H6(g)+O2

antoniya [11.8K]

Answer :

(1) This reaction is a combustion reaction.

(2) This reaction is a decomposition reaction.

(3) This reaction is a combustion reaction.

(4) This reaction is a combination reaction.

(5) This reaction is a combination reaction.

Explanation :

Combination reaction : It is a type pf reaction in which the two or more molecules combine to form a larger single molecule as a product.

Decomposition reaction : It is a type of reaction in which a single larger compound decomposes to give two or more smaller molecules as a product.

Combustion reaction : It is a type of reaction in which a hydrocarbon molecule react with the oxygen molecule to give carbon dioxide and and water as a product.

1. $C_3H_6(g)+O_2(g)\rightarrow CO_2(g)+H_2O(g)$