an 80kg skateboard moving at 3m/s pushes off with her back foot to move faster. If her velocity increases to 5 m/s, what is her change in kinetic energy as a result

How many molecules are there in 15.7 liters of chlorine gas at STP

How many years of chemistry do i need to get a deggre in marine biology

Sodium reacts with chlorine gas according to the following reaction: 2Na (s) + Cl2 (g) →2NaCl (s) What volume of Cl2 gas, measured at 689 torr and 39 ∘C, is required to form 28 g of NaCl?

What is part of every cell

Properties volume to solid

A 55.3 g sample of lead heated and then quenched in a 175g sample of water. During the quenching reaction the temperature of the water increases from room temperature, 25.0 °C, to 42.6 °C.

What conclusion can you draw from this experiment about the components of the black ink

How does the size of ions affect the conductivity of a solution?

How to write complete ionic and net ionic equations?

chromium can combine with chlorine to from corneum chloride which equation is a correct representation of this reaction