What is the meaning of polyatomic

The group of elements that tend to be found as toxic gases or liquids in their pure form including chlorine, bromine and iodine are called alkali metals true or false

The somatic system controls an animals

A burning match is an example of a chemical change phase change nuclear change physical change

Some substances cannot exist in liquid form at normal atmospheric conditions. True or False?

How did planetesimals form?

How many atoms are in Nac2C2 and what does the # stand for?

What products are formed from the complete reaction of hydrocarbons orcarbohydrates with oxygen?

How many moles of water (H2O) are present in a beaker containing 45.9 g H2O? Give your answer to the correct number of significant figures. (Molar mass of water = 18.02 g/mol) 45.9 g H2O = mol H2O

Which of the following is necessary to do a complete stoichiometric calculation? A) Add the nuclear masses of the products. B) Divide the nuclear masses of the reactants. C) Write the complete balanced chemical equation.

How come you can hear metal clash with metal on earth but in space you can't hear metal clash with metal?