Which element in Group 15 has the greatest metallic character?

1) N

2) P

3) Sb

4) Bi

Is steak biotic or abiotic

The earliest known human ancestors are believed to have lived 3 billion years ago. True or False

What is the molarity of 6 moles (mol) of NaCl dissolved in 2 L of water?

What is the change in electrons for nitrogen in the following reaction? S + NO3 - - > SO2 + NO A. Gain 2 electrons B. Gain 3 electrons C. Lose 2 electrons D. Lose 3 electrons

Use the concept of ionization energy to explain why sodium form a 1 + ion (Na+) but magnesium forms a 2 + ion (Mg2+).

When ironing clothes, the primary method of heat transfer is A) conduction. B) convection. C) insulation. D) radiation.

What type of process occurs when solidified wax is converted to liquid wax on heating? endothermic exothermic decomposition reversible disintegration

Density is not a physical property of mass. True False

Does skin have a nucleus true or false

Bacteria are only found in decaying matter. A. True B. False