How could this gravitational potential energy be transformed into kinetic energy?

A.

He could start the engine.

B.

He could release the brakes.

C.

He could push it up the hill.

D.

all of these

Write a balanced equation for the combination reaction described, using the smallest possible integer coefficients. When carbon monoxide combines with oxygen, carbon dioxide is formed.

Refer to the following table for information about gold and mercury. Then choose which statements are true about equal sample sizes of the metals. Element Specific Heat (cal/g°C) Density (g/cm3) gold 0.031 19.3 mercury 0.033 13.5

One mole of water contains 16 grams of oxygen atoms.

Preteins vary widely in structure, whereas nucleic acids have rather uniform structures. How do you account for this major difference?

If you want a reaction to happen more quickly, what do the particles inside the reaction need to do?

How many moles of solid naf would have to be added to 1.0 l of 2.39 m hf?

The sun is composed entirely of oxygen and helium True or False?

What is the oxidation number for Mn in Mn2O7? (provide sign and number)

If you have 9900 g of donuts, how many donuts do you have if each donut has a mass of 150 g?

Particles which revolve around nucleus are called