Neon has 2 isotopes. Neon-20 has a mass of 19:992 amu and neon-22 has a mass of 21 amu. In any sample of 100 neon

atoms, 90 will be neon-20 and 10 will be neon-22. Calculate

the average atomic mass.

Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with manganese (IV) oxide. 4 HCl (aq) + MnO 2 (s) ⟶ MnCl 2 (aq) + 2 H 2 O (l) + Cl 2 (g) A sample of 37.3 g MnO 2 37.3 g MnO2 is added to a solution containing 50.

How many pizzas will you need if 32 people eat 3 slices per person and there are 8 slices per pizza

How much volume would 0.450 mol CO2 gas occupy?

Wat is the percentage of fluorine in CoF3

Explain how mass is conserved when a candle burns.

For the complete combustion of 5.6dm3 of a gaseuos hydrocarbon CxHy. 28.0dm3 of oxygen gas were used, 16.8dm3 of CO2 gas and 18.0gof liquid water were produced all gases measurement were made at stp. Determine the chemical formula of the hydrocarbon

What kind or plate tectonic boundary is the san anfreas fault?

What is it called when the state of matter that keeps its shape and volume when it's placed in a different container

A 0.1 m solution of which salt is the most basic? (a) nano3 (b) naclo4 (c) nahso4 (d) nahco

How to conduct electricity with light bulb and battery