What can be said about the level of carbon-14 in living organisms?

A. It stays the same.

B. It decreases.

C. It increases.

Which statement about velocity is true? A. It has only magnitude. B. It has only direction. C. It has magnitude and direction. D. It is a scalar quantity.

Which of the following pairs lists a substance that can neutralize H2SO4 and the salt that would be produced from the reaction? CaOH2 and Ca (SO4) 2 LiOH and Li2SO4 NH4 and NH4SO4 NH3 and (NH3) 2SO4

A natural resource from the Earth that exists in limited Supply

Lead has a density of 11.3 g/cm3. if you have 1.0 kg of lead, what is the volume in cubic centimeters (cm3) ? remember to select an answer with the correct number of significant figures.

What is the source of energy for the Sun? 1 Choice 1 hydrogen fusion 2 Choice 2 internal combustion 3 Choice 3 nuclear fission of metals 4 Choice 4 burning of solar gases

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: