Is a small whole number that appears in front of a formula in a chemical equation?

Find the formula mass for oxalic acid h2c2o4 Use C=12.01, H=1.008 O=16.00

What three characteristics of matter does chemistry deal with

Which statement is true? -The earth has a stronger gravitational pull than the Sun because it is smaller in mass. -Planets would travel in a straight line if it weren't for the force of the Sun's gravity.

Why did a portion of the tabletop get cold when Natasha placed her cold drink on the table?

If ammonia is manufactured at 356 k, is the reaction spontaneous, given that the enthalpy and entropy change for the reaction are - 93 kj/mol and - 198 j/mol k, respectively?

True or False? The fatal 1930 incident in Muese Valley, Belgium, was associated with leakage of toxic chemicals from a former dump site.

How many moles of neon (Ne, 20.179 g/mol) are in 68.4 grams of neon

A 50.00 mL sample of groundwater is titrated with 0.0300 M EDTA. Of 12.40 mL of EDTA is required to titrate the 50.00 mL sample, what is the hardness of the groundwater in molarity and in parts per million of CaCO 3 by mass

Why openness is important to the progress of science?

At a certain temperature the rate of this reaction is second order in NH4OH with a rate constant of 34.1 M^-1s^-1: Suppose a vessel contains NH4OH at a concentration of 0.100M.