A student observes a blood sample with a compound microscope that has a 10x ocular month and a 40 X objective lens how much larger do the blood cells appear under the microscope

How many grams are in 3.5 moles BaSO4?

Within the same period of the periodic table how do the properties of elements close to each other compare with the properties of elements far from each other

There are many ___ about ghost ships & sea monsters

After constructing the circuit, Aliyah and Jeremy noticed that the light bulb stays on all the time. This means the batteries will get used up when the flashlight does not need to be on.

Which of the following are electromagnetic waves? A) Sound waves B) Water waves C) Ground waves D) Light waves

What is the biggest difference between an exothermic and endothermic process? A. The direction of energy flow. B. The amount of energy transferred. C. The type of energy being transferred. D. The speed with which energy is transferred.

The mass of 1 mol of chromium (atomic mass 51.996 amu) is

Which of the following elements will tend to form a cation? A. Oxygen B. Nitrogen C. Sulfur D. Lead E. All of the Above

Is pure orange juice a solution or a suspension

If a catalyst is used in a reaction: a. the energy of activation increases. b. the reaction rate does not change. c. the reaction rate increases. d. the equilibrium shifts.