A bus traveled south west for 422 kilometers. The entire trip took 3 hours. Calculate the velocity.

Consider this initial-rate data at a certain temperature for the reaction described by N2O3 ( g. - > NO ( g. + NO2 ( g. N2O3 (M) =.1 (initial rate =.66) =.2 (initial rate = 1.32) =.3 (initial rate = 1.98) find k?

A 1300 mL sample of gas with a molar mass of 71.0 g/mol at STP has what density?

What is electronic configuration?

A plastic ball floats on the water. What do you know about its density? a. The plastic ball has a density greater than water. b. The plastic ball has a density less than water. c. The water has a density less than the plastic ball. d.

In which part of a chemical reaction do bonds break in which part do they form?

1. Are state changes chemical or physical changes? Provide an example of a state change and explain why it is a chemical or physical change.

What is the morality of a 750.0 milliliter solution containing 2.5 miles of solute?

An electron in a sodium atom moves from the third shell to the fourth shell. This change is a result of the atom (1) absorbing energy (3) gaining an electron (2) releasing energy (4) losing an electron

Which of the following best describes how erosion by groundwater might create a landform? A. Slightly acidic water dissolves Serbian rocks underground to form a cavern B.

What is this mass in pounds? (1lb=453.6g)