Which of these forces is acting on a baseball sitting on level ground? A. applied force B. frictional force C. gravitational force

A solution of ammonia has a pH of 10.50. what is the initial molarity of ammonia? Kb for ammonia is 1.8x10^-5

Drug abuse will not lead to physical and psychological dependence. True or False?

Explain why it is always necessary to balance a chemical equation. Be sure to discuss atoms, bonds, and the Law of Conservation of Mass

What is iriduim satellite?

To find the total number of electrons available for bonding in a positive ion, you should add the ion charge to the total number of valence electrons of the atoms present

Which property can be defined as the ability of a substance to be hammered into thin sheets

Select the group of organelles that is common to both plant cells and animal cells. A. nucleus, cytoplasm, ribosomes, chloroplasts B. cell wall, ribosomes, cell membrane, mitochondria C. cytoplasm, mitochondria, cell wall, nucleus D.

A compound is found to have a composition of 70.4% carbon and 29.6% hydrogen, by mass. what is the empirical formula for the compound?

As you go down a family or group on the periodic table * the atoms become smaller and smaller. the elements become less reactive. the elements become more reactive. the atoms have more and more valence electrons.

What is the name of the horizontal rows in the periodic table?