If element X has 99 protons, how many elctrons does it have?

When you have a pot of water on the stove, heat is transferred to the water. Describe the behavior of the water molecules and how temperature is affected.

A 0.100-kilogram white ball moving with a velocity of 5 meters/second along the positive x-axis hits a stationary blue ball of the same mass. Energy is not necessarily conserved, but momentum is.

When an airplane is sitting on the ramp, which of Newton's Laws does it exhibit?

You have a set of calipers that can measure thicknesses of a few inches with an uncertainty of ± 0.005 inches. You measure the thickness of a deck of 52 cards and get 0.590 in: a.

Hierarchy is a principle of visual design. It allows designers to show the viewer which objects are most important. a. True b. False

Which type of reaction will for a chemical bonded combination

What kind of change is salt dissolving in water

Which of these is the most effective way for manny to cool down after kickboxing? start static stretches to increase his flexibility walk around to lower his heart rate sit and catch his breath to avoid light-headedness run one to three miles to

One of the driving forces of plate motion is: A. volcanic eruptions along coastlines B. meteor impacts in the ocean basins C. convection currents in the mantle D. hot liquid magma in the inner core

Which element is required for the combustion of fossil fuels? nitrogen hydrogen oxygen carbon