A small 23 kilogram canoe is floating downriver at a speed of 1 m/s. What is the canoe's kinetic energy?

How many half-lives have passed when there are 3 times as much daughter isotope as parent isotope?

A mixture of 0.438 M H2, 0.444 M I2, and 0.895 M HI is enclosed in a vessel and heated to 430 °C. H2 (g) + I2 (g) 2 HI (g) Kc = 54.3 at 430∘C Calculate the equilibrium concentrations of each gas at 430∘C.

When molecules move down their concentration gradient, they move from where they are to where they are.?

A binary compound created by reaction of nitrogen and an unknown element E contains 30.46% N and 69.54% E by mass. If the formula of the compound is N2E4, calculate the atomic mass of E.

The new-moon phase occurs when the Moon is positioned between the Earth and the Sun. However, these positions do not always cause an eclipse of the Sun because the * a. Moon's orbit is tilted relative to the Earth's orbit b.

During the combustion of 2.00 g of coal, the temperature of 500 g of water inside the calorimeter increased from 25.0°c to 43.7°c. the specific heat of water is 4.18 j/g·°c. how much heat did the reaction generate?

Catalysts are substances that increase the rate of reaction but can be recovered unchanged at the end of the reaction. Catalysts can be classified as either homogeneous (same state as reactants) or heterogeneous (different state than reactants).

How many molecules are there in 79g of Fe2O3?

Which of the following elements is an alkall metal?

A student mixes 0.50 L of 0.0020 M Ba (NO3) 2 solution with 0.50 L of 0.0080 M Na2SO4 solution. Which equation shows the proper set-up to calculate molar concentration of Ba2 + ions in the new solution? (0.0020 M) (1 L) = (? M) (0.0020 M) (0.