Happy Horses Stable charges a flat rate of $12 to rent a horse plus $5 per hour. Charlie paid $37 to rent a horse. How many hours, x, did he pay to have the horse?

If the pressure on an ideal gas is increased, what will happen to the volume of the gas?

To investigate the relationship between enzyme activity and substrate concentration, a student is supposed to prepare a reaction solution containing 0.25% substrate. instead, the student prepares a reaction solution containing 0.025% substrate.

A pan containing hot water is left on the counter and becomes cool mainly due to A. water molecules moving apart B. cold air penetrating the hot water C. heat from the water moving through the cooler air D.

3.15 g of an unknown gas at 35 °C and 1.10 atm is stored in a 1.85-L flask. What is the density of the gas? what is the molar mass of the gas?

25 How many pairs of electrons are shared between two adjacent carbon atoms in a saturated hydrocarbon? (1) 1 (3) 3 (2) 2 (4) 4

Give an example of how microorganisms might meet each of the challenges of life

What is the molarity of a solution that contains 4.53 moles of lithium nitrate in 2.85 liters of solution? 0.874 M 0.629 M 3.77 M 1.59 M 2.57 M 1.98 M

In which type of unconformity is the eroded rock tilted or folded? disconformity nonconformities angular unconformity scarp unconformity

A liquid solution can be made from solid, liquid, or gas solute.

How many liters of water can be made from 55 grams of oxygen gas and an excess of hydrogen at a pressure of 12.4 atm and a temperature of 850 c?