The ___is always equal to the number of protons + the number of neutrons that the atom has

Which type of chemical reaction typically produces carbon dioxide and water as its products?

How does decreasing the temperature affect the volume of the gas A. The Molecules will spread out more increase in the volume. B. The molecules will increase the pressure increase the volume C. The molecule will form a liquid decreasing the volume D.

There are 14 women and 12 men in an engineering class. The professor wants to send some of his students to a national conference.

Connect the whole numbers on the periodic table to indicate what they represent?

A good hypothesis includes which of the following? A: Prediction B:data C:uncertainty D:conclusion

Plastic, rocks, and steel are all matter. They are made of tiny particles that can't be broken down into smaller pieces. These particles are called:

The palm tree with island is a population or biome or community

A gene is a section of dna within a chromosome that codes for a

An electron charge e mass m and a positron charge e mass m revolve around their common center of mass under the influence of their attractive coulomb force Find the speed v of each particle in terms of e m k and their separation L

Find the density of an object with a volume of 2.5 cm3 and a mass of 8.0 g.