A compound has the empirical formula chcl. a 256ml flask, at 373 k and 750. torr, contains 0.800 g of the gaseous compound. give the molecular formula.

Riley is doing an experiment working with friction. He wants to find two ways to modify an object that could increase or decrease the same type of friction. Which methods could he use to perform his experiment?

Which describes the role of oxygen in photosynthesis?

Nahco3 is the active ingredient in baking soda. how many grams of oxygen are in 0.72 g of nahco3?

What can you tell about the rate of the two reactions shown in the graph?

Which is the correct order in the levels of organization? Leap Year Cell, Tissue, Organ, Organ System, Organism Cell, Organ, Organ System, Tissue, Organism Cell, Organ, Tissue, Organ System, Organism

Lithium (Li) and oxygen (O) are both in period 2. They both have? a. similar properties b. the same number of protons c. two electron shells d. the same number of electrons

What compares a law and a theory?

Explain what domain would best be represented by the "?" in the diagram. A) Eukarya because the organisms are all eukaryotic. B) Eukarya because the organisms are all prokaryotic. C) Bacteria because some of the organisms are autotrophs.

If you are eating a hamburger, it is an example of a consumer eating another consumer. a) true b) false

What mass of NaNO3 is needed to make 3.5 L of 2.2 M solution? (Na = 23.0g, N=14.0g, O=16.0g) Explain in steps