Which of these is an appropriate instrument to measure mass?

balance

scale

ruler

graduated cylinder

How many molecules of h20 contain 2.0 x 10^22 molecules of water?

Of the following, which gives the correct order for atomic radius for Mg, Na, P, Si and Ar? A) Mg > Na > P > Si > Ar B) Ar > Si > P > Na > Mg C) Si > P > Ar > Na > Mg D) Na > Mg > Si > P > Ar E) Ar > P > Si > Mg > Na

Why do we say a substance in a liquid phase is more disordered than the same substance in a solid phase?

What are the two products of a neutralization reaction?

In what state of matter do molecules bounce off one another rapidly and freely

How are elements different from compounds?

A new concept that is tested in a scientific investigation is known as

Which of the following is responsible for the exchange of gases in a leaf? the phloem the spongy mesophyll the stomata

What is the thermochemical equation for the combustion of methane. Methane formula: CH4 (g) and the deltaH comb - 891 (kJ/mol)

What is the mass of one mole of an element that has aan atomic mass of 6.94?