How many nitrogen atoms are in one molecule of (NH4) 2SO4?

Symptoms of delayed cell-mediated reactions are due to

What heats up hot chocolate faster? milk or water?

Calculate the electric field at the location of a charge if the electric force is 10 newtons and the charge on the particle is 6 coulombs. a. 0.6 j b. 0.6 n/c c. 1.7 v d. 1.7 n/c

Suppose you have two resistors, R1 and R2, connected in series to a power source of voltage V, and that the resistor R2 has a much higher resistance than R1. Which of the following statements are true? Select one or more: a.

When the rooster crows, the sun rises. therefore, the rooster causes the sun to rise?

A 2.25-kg block is released from rest on a ramp of height h. when the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.

Which of the following are steps for balancing chemical equations? Check all that apply. ] A. Multiply the reactants to get the products. B. Change subscripts. O C.

1. Why does the water vapour in clouds condense? 2. Explain why you can see clouds but not see the water vapour in the air

What are some similarities between electricity and gravity?

What's the difference between solids and liquids?