The five phases of matter. There are four natural states of matter: Solids, liquids, gases and plasma. The fifth state is the man-made Bose-Einstein condensates. In a solid, particles are packed tightly together so they don't move much.

3 0

2 years ago

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When different elements react, their atoms join with other atoms.

FinnZ [79.3K]

Answer:

compound is formed .............

8 0

2 years ago

An unknown compound has the following chemical formula:

Softa [21]

Answer:

Formula of the compound = $P_2O_5$

Explanation:

Given,

No. of mole of O = 8.20 mol

No. of mole of P = 3.30 mol

Chemical formula = $P_2O_x$

Ratio of P and O = $\frac{2}{x}$

$\frac{2}{x} =\frac{3.3}{8.20} \\x \times 3.3 = 8.20 \times 2\\x = \frac{8.20 \times 2}{3.3} \\x=4.9969\\ = 5$

formula of the compound = $P_2O_5$

5 0

3 years ago

In the Periodic Table, what is the relationship between two elements that are placed side-by-side in a row?

marusya05 [52]

Answer is D. The periodic table rows are arranged by increasing atomic number. The atomic number is decided by how many protons they have.

5 0

3 years ago