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3 years ago

6

In this chemical formula: 3NH4 (ammonium) This chemical formula means there are 3 _______ _, and 4 ____

______ in each molecule.

1 answer:

seropon [69]3 years ago

5 0

Answer:

hope it helped you

Explanation:

3 atoms of nitrogen and 4 atoms of hydrogen in each molecule

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3 years ago

If the half life of a radioactive isotope is 5000 years, how much of the radioactive isotope in a specimen will be left after 10

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4 years ago

_Li + __F2 → _LIF<br> How do I balance this?

Semmy [17]

Answer:

2Li + F₂ → 2LiF

Explanation:

The reaction expression is given as:

Li + F₂ → LiF

We are to balance the expression. In that case, the number of atoms on both sides of the expression must be the same.

Let use a mathematical approach to solve this problem;

Assign variables a,b and c as the coefficients that will balance the expression:

aLi + bF₂ → cLiF

Conserving Li: a = c

F: 2b = c

let a = 1, c = 1 and b = $\frac{1}{2}$

Multiply through by 2;

a = 2, b = 1 and c = 2

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3 years ago

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expeople1 [14]

Answer:

44.1g/cm3

Explanation:

d=m/v

=441/10

=44.1 g/cm3

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3 years ago