Which statement describes friction?

O It is perpendicular to the surfaces that rub together.

O It causes a change in motion.

O It occurs in the same direction as the push force.

O It pulls downward on a moving object.

Jen can take either of two separate roads to drive to work. The first is a toll road that is rarely congested. The second road is a road with no tolls, but it is often congested and has many potholes.

If matter has a definite volume but no definite shape, in what state is it?

How many moles are in 2.47 x 10^22 molecules of H2O

4. A burning candle is an example of a chemical reaction taking place. What i can be inferred about this reaction? Choose the correct answer." A. Mass is not conserved. B. The reaction absorbs energy. C. The reaction releases energy D.

In physical changes, the atoms or molecules that compose the matter do not change their identity, even though the matter may change its appearance.

You determine the volume of your plastic bag (simulated human stomach) is 1.05 L. How many grams of NaHCO3 (s) are required to fill this container given a 70.

If 3.00 g of limestone reacted, what mass of calcium chloride would be produced?

Which four quantities a, b, c and d are required to balance the equation ... aMgO (s) + bHCl (aq) = = > cMgCl2 (aq) + dH2O (l)

Find the number of moles of water that can be formed if you have 134 mol of hydrogen gas and 62 mol of oxygen gas

The amount of kinetic energy an object has depends on its. motion position gravity height