Velocity has units of m/s. Velocity is a base unit.

True or false

The rate constant for the first order decomposition of A at 500oC is 9.2 x 10-3 s-1. how long will it take for 90.8% of a 0.500 M sample of A to decompose? Question options:

Study the Bohr model shown below. What group this element part of? a. Group 1A b. Group 2A c. Group 3A d. Group 4A e. Group 5A

Any atom can be considered stable if it has what?

Hemoglobin, a protein in red blood cells, carries o2 from the lungs to the body's cells. iron (as ferrous ion, fe2+) makes up 0.33 mass % of hemoglobin. if the molar mass of hemoglobin is 6.8 Ã 104 g/mol, how many fe2 + ions are in one molecule?

What is AGsystem for the system that is described by the following data? AHsystem = - 232 kJ, T = 293 K, ASsystem = 195 J/K AGsystem = AHsystem - TASsystem O-289 kJ O - 175 kJ O 256 kJ O 56,903 kJ

Can quadrilateral RSTU be a parallelogram

Four moles of hydrogen chloride (HCl) gas react with one mole of oxygen (O2) gas to produce two moles of chlorine gas (Cl2) and two moles of water gas (H2O).

The density of rubbing alcohol is 0.785g/mL at 25 Celsius. Calculate the mass of 15.0 mL of the rubbing alcohol.

Is the universe an isolated system?

1000ml of a gas is cooled from 500 K to 250 K, what is it's final volume? A. 250 ml B. 1000 ml C. 500 ml D. 750 ml E. 2000 ml