If an atom has 32 protons and 38 neutrons, what is it's mass number?

Identify at least two pollutants that destroy the ozone layer. Discuss the origination of these pollutants and a plan for reduction.

The subshells of n = 2?

True or false? the current number one method of disposal of municipal solid waste is combustion.

The identity of the matter changes

In the thermal decomposition of copper carbonate, the black solid left behind weights less than the original copper carbonate. Why?

Which outcome is not caused by gravitational force?

Explain the properties of the substance around us depend on the atoms and molecules that compose them

What is an ion (1 mark) what is the charge on a chloride ion (1 mark) what is an ionic bond (1 mark)

Why do northern lights appear in different colors? Because charged particles of solar wind ignite different gases in Earth's atmosphere Because electrons and protons of solar wind ignite the plasma present in the corona Because electrons and protons

Which organ system consists of the following levels of organization? kidney cells - - > kidney tissues - - > kidney A. excretory B. circulatory C. respiratory D. integumentary