What are basic laws in chemistry

When an unsaturated hydrocarbon undergoes complete addition, the product is: a new unsaturated molecule a saturated molecule a saturated molecule plus hcl hcl?

An element consists of 1.40% of an isotope with mass 203.973 u, 24.10% of an isotope with mass 205.9745 u, 22.10% of an isotope with mass 206.9759 u, and 52.40% of an isotope with mass 207.9766 u.

1. When iron is oxidized, what is reduced?

How many atoms are in carbon 12

Elena makes the table below to determine the number of atoms of each element in the chemical formula 3 (NH4) 2SO4 Total atoms Element Nitrogen Hydrogen Sulfur | Oxygen What mistake did Elena make?

When a tire is inflated with air is it a chemical or physical change?

Which isotope is used to date ancient artifacts such as fossils? carbon-12 carbon-14 uranium-238 oxygen-16

If 8.60 grams of methane gas (hint: remember the fuel for the bunsen burner) is in a 2.00 L container at 66oC, what is the pressure in the container?

Insulator in a sentence, with science.

Aqueous hydrobromic acid reacts with solid sodium hydroxide to produce aqueous sodium bromide and liquid water.