True or false only ocean waves have troughs and crest

Label each description as ionic, covalent, or both. Atoms share pairs of electrons: Atoms transfer electrons: Atoms have electrostatic attraction: Atoms bond together:

Compare to hardness of gypsum to an everyday substance

In fission, a heavy nucleus is split into two lighter ones with the liberation of __ (electron, proton, or neutron) __ and __ (mass or energy) __.

Doubling the mass and object has, will increase its kinetic energy more than doubling its speed. True False

How many atoms of carbon are present in 1.5 mole of carbon.

How many daughter cells are produced in meiosis?

Sodium chlorite - > sodium chloride + oxygen what type of chemical reaction is represented by this equation

The mixing of which pair of reactants will result in a precipitation reaction? the mixing of which pair of reactants will result in a precipitation reaction?

A balloon has 18.9 moles of hydrogen gas at a volume of 428 L. What would the volume of the gas be if the balloon had 14.0 moles of hydrogen gas left after 1 day?

An analytical chemist is titrating 242.5 mL of a 1.200 M solution of hydrazoic acid HN3 with a 0.3400 M solution of NaOH. The pKa of hydrazoic acid is 4.72. Calculate the pH of the acid solution after the chemist has added 1006.