Completely random question out of pure, weird curiosity ...

Is Botox a physical or chemical change?

I know weird question

A chemistry student found the density of Freon-11 (CFCl3) to be 5.58 g/L under her experimental conditions. Her measurements showed that the density of an unknown gas was 4.38 g/L under the same conditions. What is the molar mass of the unknown?

The maximum number of molecules present in 15 litres of hydrogen gas

A student rides his scooter. The student has a mass of 40.0 kg and travels with a constant acceleration of 1.5 m/s. What net force is the student experiencing?

How does using a jack make changing a tire easier

A + H means that energy is released from a reaction. True or False

How many grams are in 3.3 moles of potassium sulfide, k2s

What is fusion energy

A 4.5-liter sample of a gas has 0.80 mole of the gas. If 0.35 mole of the gas is added, what is the final volume of the gas? Temperature and pressure remain constant. 3.9 liters 5.3 liters 6.3 liters 6.5 liters

What is the unit used to measure the atomic mass?

Which metal in Period 5 is very reactive and has two valence electrons in each atom? rubidium (RD) strontium (SI) zirconium (Z1) silver (Ag)