Which has the highest rate of effusion oxygen or hydrogen

What 3 pieces of information do you need when describing an object's motion?

In the covalently bonded chemical compound acetate [CH3COO]-, the two carbon atoms have different oxidation states. What are its two oxidation states? A. +1 and - 2 B. +3 and - 4 C. +3 and - 3 D. +1 and - 4

Why are atoms small? and you cannot see them?

the air pressure was 101.3 kPa, but the weatherman said it was 1001.3 kPa. What is the percentage error

A box has a length of 10 cm a width of 8.5 cm and a height of 5.5 cm what is it volume?

The organisms living together in a community are interdependent upon one another. Look at the food web below. In which of the following ways is a puffin dependent upon salmon? A. Puffins have a commensalistic relationship with salmon. B.

2) Which of the following is a true statement? A: All the atoms of an element must be identical. B: Compounds may be separated by physical means. C: Mixtures may not be separated. D: Homogeneous is one type of compound.

How to tell the difference between ionic and covalent bonding?

The combustion of propane may be described by the chemical equation C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) C3H8 (g) + 5O2 (g) ⟶3CO2 (g) + 4H2O (g) How many grams of O2 (g) O2 (g) are needed to completely burn 83.3 g C3H8 (g) ?

Was the relationship among temperature, heat, and thermal energy?