An electromagnet is a solenoid with a piece of ferromagnetic material within it.

True.

or

False.

How many grams of hydrogen is needed to produce 12 grams of water?

An extra-strength aspirin contains 0.500 g of aspirin. How many grains is this? (1 grain = 64.8 mg)

Which property explains why water is able to travel against gravity, from the roots of a plant to the leaves at the top of the plant? (Don't say cohesion or adhesion)

How many electrons does sulfur have to gain to achieve a noble-gas electron configuration

If a sample of oxygen gas originally at from 171.4 K has its temperature increased to 288.4 K and the new volume was 1.6 L, what was the original volume of the sample of oxygen gas?

A tire is filled to a gauge pressure of 2 atm at 27 degrees Celsius after a drive the temperature within the tire rises to 47 degrees celsius. What is the pressure within the tire now

What mass, in grams, of fluorine has (F2) is contained in a 10.3-liter tank at 29.8 degrees Celsius and 1.23 atmospheres? Show all of the work used to solve this problem.

What is the empirical formula of a substance that contains 2.64g of C, 0.444g H and 3.52g of O

Which of the following is a step in the conversion of 2.5 hm3 to L? fraction cubed: one cm over ten to the second power m fraction cubed: one hm over ten to the negative 2 power m ten to the negative third power L over 1 mL fraction cubed: one ml

What is the mass of 1.0 x 10-3 mole of Zn? 3.9 x 1022 0.065 0.000015