Which of the following gases will have the slowest rate of effusion?

water vapor (M = 18 g/mol)

oxygen gas (M = 32 g/mol)

hydrogen gas (M = 2.0 g/mol)

carbon dioxide (M = 44 g/mol)

If you move a substance from one container to another and its volume changes substance is?

Suppose you placed a tube containing 80% sucrose solution into a beaker of 40% sucrose solution. Would the tube gain weight or lose weight?

What are the [H+] and [OH-] for a substance with a ph of 9.2?

A candle is 10 cm high and 2 cm in diameter physical or chemical property

What ion is at a higher concentration in the extracellular fluid than in the intracellular fluid?

Which formula id correctly paired with its name? A. MgSO↓ = magnesium chlorine B. FeO = iron (|||) oxide C. K↓2O = Phosphorus dioxide D. CuCI↓2 = copper (||) chloride

Which of the following correctly explains the role of enzymes in biochemical reactions? A) Enzymes provide energy in the form of ATP to lower the activation energy needed for the reaction.

How does being a landlord relate to chemistry in any way

Element m has an ellectronegativity of less than 1.2 and reacts with bromine to form the compound MBr2. Element M could be?

Which situation describes evidence of a chemical change? A. When food color is added to water, it changes color. B. A solid changes into liquid when heated. C. A solution feels warm after a cool solid is added to it. D.