2. An electric heating element is connected to a 110 V circuit and a current of 3.2 A is flowing though the element. How much energy is used up during a period of 5 hours by the elemets? A. 550 Wh B. 2,580 Wh C. 352 Wh D. 1,760 Wh

Which of the following statements regarding thermal conductivity is WRONG? Select one: O a. It is a transport property O b. It depends on the state of a matter O c. It depends on the temperature of a matter O d.

Water heater contains 51 gal of water. part a how many kilowatt-hours of energy are necessary to heat the water in the water heater by 25 ∘c?

If there are no chemical controls which can be implemented at your worksite, what can you do to protect yourself? A.) Sue the company B.) Ask someone else to do your job C.) Stop doing your job D.) Wear recommended PPE for protection

What properties explain the behaviors of liquid-filled thermometers?

A 2.40 L volume of air has a pressure of 101.7 kPa. If initially the pressure of the air was 101.01 kPa, what was the initial volume of air? Assume all other properties remain constant.

Suppose you have a buffer containing 0.400 M hydrazine and 0.300 M hydrazinium chloride at equilibrium. Then you add 25.2 g of NaOH to 2.0 L of the buffer. What change in pH is caused by the addition of the base? A) 0.99 B) 0.40 C) 8.71 D) - 0.36

The heart is an example of which level of organization within an organism? O cell organ tissue organ system O O

NaOH+HCl--> NaCl+H2O what is the total number of grams of H2O produced when 116 grams of the product, NaCl, is formed?

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?