True or false? 1: the ph scale measures the concentration of hydroxide ions.

true or false?
a base is a compound that turns litmus blue and is often found in soaps and detergents.

which salt is produced when copper oxide reacts with hydrochloric acid? a. chloride oxide b. copper oxide c. copper chloride d. hydrochloride

what does a neutralization reaction produce? a. acids b. bases c. water and a salt d. carbonated water

The energy released by a chemical reaction can be measured using a calorimeter. when barium hydroxide octahydrate crystals are reacted with dry ammonium chloride inside of a coffee cup calorimeter, the temperature of the 18.00 g of water in the calorimeter decreases from 30.0°c to 8.0°c. the equation for calculating energy absorbed or released by a reaction is: where q is the energy released or absorbed, m is the mass of water in the calorimeter, cp is the specific heat of water, and δt is the observed temperature change. if the specific heat of liquid water is 4.19 j/g·°c, how much energy was absorbed by the reaction?

If it takes a planet 2.8 x 10^8 s to orbit a star with a mass of 6.2 x 10^30 kg what is the average distance between the planet and the star

The necleus of an atom is made up of what subatomic particles?