An atom with 39 protons and a mass number of 89 what is the number of neutrons

In general which way does wind blow

How many protons does a 17CI have

The gas inside of a soda can is called what? Carbon dioxide oxygen chlorine h2o

Kendra conducts an experiment. She mixes two chemicals, resulting in a chemical reaction. Based on Kendra's experiment, what can be concluded about the original matter before mixing?

Write down 5 examples of science in your every day life

10. In what part of the world might you find Mystery Island (note: you will be given full-credit for simply attempting this question and you will find the actual answer in your teacher's feedback). Do not answer!

What are the spectator ions in this equation?

A quantity of 1.922 g of methanol (CH3OH) was burned in a constant-volume bomb calorimeter. Consequently, the temperature rose by 5.72°C. If the heat capacity of the bomb plus water was 9.

Some studies has shown that peppermint odor increases people's mental sharpness, especially when they solve math problems.

Why can't double-replacement reactions start with one reactant is a pure metal?