Which forms of matter are considered pure substances?

A elements only

B mixtures only

C compounds and mixtures

D elements and compounds

marty the astronaut has a mass of 75kg he travel to mars which is 38% earths gravity provide weight in pounds when 1 kg equals 2.2 pounds

What are chemical contaminants? Homemade soaps Restaurant grade cleaners Alcohol Recreational drugs

Mercury (II) oxide decomposes to produce mercury and oxygen

What is the mass of an aluminum cylinder that has a volume of 1.50m^3

Identify two different habitats in a marine ecosystem. Name one organism found in each habitat

2. You have 2 m3 of a mineral ore sample. It has a mass of 1 * 104 kg. Calculate the density of the ore sample and express your results in g/cm3 with appropriate scientific notation.

A sample of hydrogen was collected by water displacement at 23.0°C and an atmospheric pressure of 735 mmHg. Its volume is 568 mL.

What is loamy soil?

What is the lowest possible value of n for a d atomic orbital?

List the following bonds in order of increasing ionic character: CsF, ClCl, BrCl, SiC