Asubstance with ph2 is how many times more acidic than a substance with ph4?

a. 2
b. 10
c. 100

Why is metal often used for cooking pan?

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

Brutus, the dog, is pulling a bone to the left with a force of 20 n. lassie, another dog, is pulling a bone to the right with a force of 18n. what is the net force? a. b. c.