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SCORPION-xisa [38]
3 years ago
13

An atom with 4 protons, 5 neutrons, and 4 electrons has an atomic mass of _____ amu.

Chemistry
1 answer:
Len [333]3 years ago
6 0

Answer:

9

Explanation:

atomic mass = number of protons + number of neutrons = 4+5 = 9 amu

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A pound of margarine costs $1.39. What is the cost of a kilogram of margarine
den301095 [7]

Answer:

              3.064 $

Solution:

First of all we will find the number of pounds contained by one Kg. Therefore, it is found that,

                                    1 Kilogram  = 2.20462 Pounds

Hence, as given,

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So,

                  2.20462 Pounds Margarine will cost  =  X Dollars

Solving for X,

                     X  =  (2.20462 Pounds × 1.39 Dollars) ÷ 1 Pound

                     X =  3.064 Dollars

8 0
3 years ago
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Answer:k

Explanation:

Atomic theory would be the theory or explanation of the function of atoms and their relationship with each other.

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Read 2 more answers
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