What is the volume of 16g of oxygen gas at STP?

When a soda can is opened and produces a fizzing sound and carbon dioxide bubbles, is it a physical or chemical change?

A 2.144-g sample of phosgene, a compound used as a chemical warfare agent during World War I, contains 0.260 g of carbon, 0.347 g of oxygen, and 1.537 g of chlorine. What is the empirical formula of this substance?

Which definition of heat is most scientifically accurate? A. how hot or cold something is B. a measure of the thermal energy in matter C. the temperature of the thermal energy in an object D. the movement of thermal energy from one place to another

When you heat up an object, the particles in the object move which way?

The molecular formula mass of this compound is 120 amu. What are the subscripts in the actual molecular formula? Enter the subscripts for C, H, and O

If your heart beats an average of 68 times per minute, how many times will your heart beat in an hour? In a day? In a week? Show all work

The gas described in parts a and b has a mass of 1.66 g. the sample is most likely which monatomic gas?

What is the oxidation number of N in NH4NO3

Aqueous magnesium chloride and hydrogen gas are produced when solid magnesium reacts with aqueous hydrochloric acid (hcl). what is the equation for this reaction?

What is ph? And explain where it can be used