50g of water is placed into a beaker. the mass of the beaker is now 115g. what is the mass of the empty beaker?

Total atoms present in CuSO4?

Why are alloys useful?

What system is a kidney stone?

Methane and hydrogen sulfide form when hydrogen reacts with carbon disulfide. identify the excess reactant and calculate how much remains after 36 L o fH2 reacts with 12 L of CS2 all at STP

A lava lamp contains a waxy substance and water which do not mix and a light bulb at the base as the bulb heats the waxy substance it rises near the top of the lamp the waxy substance cools and falls explain why this happens

When did Pangaea begin to break apart? a. 20 million years ago c. 250 million years ago b. 100 million years ago d. 2 billion years ago.

When an object is thrown, the thrower pushes the object. This causes the object to move in a motion.

Distinguish between accuracy and precision in measurements

What is the concentration of h + ions in a 2.20 m solution of hno3?

Which type of cell is a rose thorn? prokaryotic eukaryotic plant eukaryotic animal chloroplastic