A 1.25 g sample of an unknown gas at 39 ∘ C and 1.05 atm is stored in a 1.35 L flask. What is the density of the gas?

A gas has a volume of 2L at STP. How many moles of the gas are present?

Verna studies a rose in science class. She takes it apart and compares its different pieces. Verna decides that the smallest thing that makes up a rose is a petal. If she used a microscope to look at the rose, would she change her mind? A.

What will happen when a light bulb is added on the left side of this circult

2. The product of the hydrogen ion and the hydroxide ion concentrations must always be equal to a constant value. What is this numerical constant?

Process scientist use to organize groups based on similar characteristics

The solubility of carbon dioxide gas in water can be increased by

What two quantities are conserved in every chemical reaction? a. moles and mass c. volume and mass b. mass and atoms d. moles and atoms?

What two chemical mechanisms change pyruvate to acetyl-CoA in the pyruvate dehydrogenase complex? Group of answer choices a) Decarboxylation and condensation. b) Oxidation and decarboxylation. c) Condensation and dehydrogenation.

Which earth cycle does the suns energy drive

How many moles are in 10 grams of CaCl2?