1. Define the law of conservation of mass.

Calcium carbonate chemical formulae

Which molecule could have an expanded octet? hno2 h2co3 h3po4?

How many grams of carbon dioxide are formed from 25 moles of octane

Where are nonmetals located in the periodic table?

Which compound in the following pair would you expect to have the greater dipole moment μ? Why? Select the single best answer. NaF or HF Hydrogen fluoride has the larger dipole moment because sodium has a greater atomic radius than hydrogen.

At a certain temperature this reaction follows second-order kinetics with a rate constant of 14.1 M-1s-1 : 2SO3g - -> 2SO2g + O2g Suppose a vessel contains SO3 at a concentration of 1.44M. Calculate the concentration of SO3 in the vessel 0.

A fusion reaction takes places between carbon and another element. Neutrons are realeased, and a different element is formed. The different element is?

What is the molarity of a solution prepared by dissolving 1.56 g of gaseous hcl (molar mass = 36.5 g into enough water to make 26.8 ml of solution?

Elementary row operations on an augmented matrix never change the the solution set of the associated linear system. True or False?

Element A has an electronegativity of 2.20. Element B has an electronegativity of 3.44. The bond of molecule AB is then best described as a: