When a chemical substance has either lost an electron or gained an oxygen?

The pressure of a gas at constant temperature is increased by a factor od 4. By what factor does the volume change? A 1/4 B 1/2 C 1 D 4

Which one of these compounds listed below is least likely to exist, and why? NaBr HgCl2 ArCl Mg3N2 C3H8 CaO

When a substance such as ice melts, its temperature increases. Describe what happens to the arrangement of the water molecules as the temperature increases

Arrange the following sets of systems in order of increasing entropy. Assume one mole of each substance and the same temperature for each member of a set. (Include states-of-matter under the given conditions in your answer.

How many moles of CO4 are in 870 mL of a 0.75 M solution? 0.65 moles 1.2 moles 650 moles 1200 moles

1. When adding strong base to a buffer, why can we assume the equilibrium value of the OH - is zero?

When acid (X) reacts with base (Y) to produce Mg3 (PO4) 2 - what are X and Y

During mitosis, one cell creates: one identical cell two identical cells one non-identical cell two non-identical cells

True or false : A glacier can only form in an area where more snown falls than melts

An element belongs to group 9. what common name might be used to describe the group to which this element belongs?