An object is accelerating if there is a change in speed and which factor? a. time b. position c. direction d. displacement

Vermilion, a very rare and expensive solid natural pigment that has been used to print artists' signatures on works of art, is mercury (ii) sulfide. what mass of vermilion can be produced when 75.0 ml of 0.

A covalent chemical bond is one in which outer-shell electrons of two atoms are shared so as to satisfactorily fill the outer electron shells of both atoms. protons and neutrons are shared by two atoms so as to satisfy the requirements of both atoms.

Which terms are used to identify pure substances? (1) an element and a mixture (2) an element and a compound (3) a solution and a mixture (4) a solution and a compound

Which reaction is accompanied by an increase in entropy? A) ZnS (s) + 3/2 O2 (g) → ZnO (s) + SO2 (g) B) CH4 (g) + H2O (g) → CO (g) + 3H2 (g) C) BaO (s) + CO2 (g) → BaCO3 (s) D) Na2CO3 (s) + CO2 (g) + H2O (g) → 2 NaHCO3 (s) E) N2 (g) + 3 H2 (g) → 2

Which ionic compound is the most likely to dissolve in water? CaSO4 Na2SO4 BaSO4 SrSO4

How are the terms group and period used on the periodic table

Enter a balanced chemical equation for the reaction between aluminum metal and liquid bromine.

What does DNA instructions for making what

Which of the following substances act as a catalyst in the body? A) carbohydrates B) nuclear Acids C) Lipids D) enzymes

How many carbons are in a molecule of hexane?