Groups of cells that work together are called.

Describe how a mole ratio is correctly expressed when it is used to solve a stoichiometry problem

Is bleaching your hair a physical or chemical change and why

2) If 5.0 moles of O2 and 3.0 moles of N2 are placed in a 30.0 L tank at a temperature of 25° C, what will the pressure of the resulting mixture of gases be?

What is the ideal gas constant? A. It is a constant that applies only at STP. B. It is a specific constant for a particular gas. C. It is a universal constant used for all gases. D. It is a constant that depends on the conditions.

Which substance can not be decomposed by a chemical change? A. Ammonia B. Copper C. Propanol D. Water (P. s, tysm)

2 CO (g) + O2 (g) → 2 CO2 (g)

3h2 (g) + o3 (g) 3h20 (g) arrow after the o3 (g) whats the overall enthalpy?

For the reaction represented by the equation cl2 + 2kbr ® 2kcl + br2, calculate the percentage yield if 200. g of chlorine react with excess potassium bromide to produce 410. g of bromine.

The surface area and depth of the Pacific Ocean are 1.8 X 10^8 km^2 and 3.9 X10^3 m respectively, Calculate the volume of the Pacific Ocean in liters.

Find the molarity of HCl from neutralization of NaOH+HCl I have 9.82mL of HCl and 14.44mL NaOH. The molarity of NaOH is. 5M