Which of the following pairs of elements is most likely to form an ionic bond?

A.

calcium and fluorine

B.

carbon and oxygen

C.

phosphorus and chlorine

D.

nitrogen and oxygen

Examine the reaction C 3 H 8 + 5O2->3CO 2 + 4H 2 O. If the reaction starts with 2.5g C 3 H 8 what is the theoretical yield of water? If the reactant yields 75 % of the theoretical yield of water, how many grams of water were produced?

Is thermodynamics a potential or kinetic energy

Hands moving on a battery-operated clock is an example of what kind of energy conversion? A. Kinetic energy being converted to chemical potential energy B. Gravitational potential energy being converted to heat energy C.

What amount of heat is removed to lower the temperature of 80 grams of water from 75º C to 45º C? The specific heat of liquid water is 4.18 J/gº C. A. - 10,000 J B. 10,000 J C. - 8,000 J D. 8,000 J

What is the pressure in atm exerted by 2.48 moles of a gas in a 250.0 mL container at 58 degrees celsius

An easy way to assign the number of d-electrons (the “d count”) in a transition metal ion is to first look at the periodic table and take note of which group the element is in.

A basketball weigh more after it was inflated with air then when it was deflated how does this show that gas is matter

When was Magnesium discovered and how or who discovered it

Consider these statements regarding the body's inability to convert fat to carbohydrates. Select each statement that is true. 1. Acetoacetate is a normal, major energy source for the brain, heart muscle, and renal cortex. 2.

Which is the best term to use describing the energy of position