What unit is used to measure energy?

All atoms of the same compound have the same number of protons neutrons and electrons

How much heat is needed to change the temperature of 3 grams of gold (c = 0.129) from 21°C to 363°C? The answer is expressed to the nearest whole number.

Atoms involved in blank covalent bonds do not share their electrons equally

During a medical condition screening lung capacity testing is a standard procedure. True of false

A star that appears to pulsate is called a

If a pressure gauge measure an increase in 3*10^ (5) Pa on an area of 0.7 m^2, calculate the increase in the force applied to the area?

Which of the following is an example of potential rather than kinetic energy? a. water rushing over Niagara Falls b. a molecule of glucose c. a crawling beetle foraging for food d. light flashes emitted by a firefly

If a force of 15 newtons [N] is applied to a surface and the pressure is measured as 4,000 pascals [Pa], what is the area of the surface in units of square milimeters [mm2 ]?

An engineer has the task of producing an aluminum alloy with a density of 3.0 grams per cubic centimeter. She comes up with the perfect alloy and saves a sample of it. Which mass and volume measurements correspond to this sample? 7 g and 2.

What must be your car's average speed in order to travel 235km in 3.25 hours?