Phosphorus is:

1 found free in the atmosphere

2 returned to the soil by rhizobium

3 added to the soil through weathering

4 usually very abundant in an ecosystem

Balance HCN+CuSO4"H2SO4+Cu (CN) 2

Water in the form of a gas is called

Which definition describes a half-life? The time required for half of a radioactive sample to decay. The time required for half of a radioactive sample to become unstable. The time required for all of a radioactive sample to change because of heat.

When wax is heated and changes to liquid how are the molecule affected

What is the molarity of a solution containing 11.2 g Ca (NO3) 2 in 175 mL of solution? What is the molarity of a solution containing 11.2 in 175 of solution? 1.96*103 M 64.0 M 0.063 M 0.390 M

An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84 neutrons. What happened to the atom?

A compound of material formed by a chemical is known as?

Which of these molecules experience london dispersion force?

What happens to the volume of most matter when it is heated?

An aqueous solution is made from a molecular compound rather than from an ionic compound. If some ions are present in solution, which best describes the solute? A. a weak electrolyte B. a nonelectrolyte C. a strong electrolyte D.