Which is an example of a chemical reaction?

a) burning a log

b) water evaporating

c) melting ice

d) shredding a piece of paper

Match the following items. Match the items in the left column to the items in the right column. 1. vibrate slowly in fixed positions 2. condensation vibrate and rotate 3. occurs at phase equilibrium 4. required for evaporation 5. condensation 6.

When an organism from a higher trophic level eats an organism from a lower trophic level all of the energy is converted to mass. all of the energy is converted to heat. most of the energy is converted to mass. most of the energy is converted to heat.

A gas is found to occupy a volume of 38.2 mL at 25.0ºC and an unknown pressure. If this same gas occupies 37.5 mL at STP, determine what its unknown original pressure was in mm Hg.

How many moles of oxygen are produced when 2 mol of potassium chlorate (kclo3) decompose?1236

What does the presence of ide ending on the name of an ion tell you about that ion

A liquid fuel mixture contains 30.35% hexane (c6h14), 15.85% heptane (c7h16), and the rest octane (c8h18). what maximum mass of carbon dioxide is produced

What is the suns color

A container has a volume of 200 L at 0.94 atm and 25 C. The pressure changes to 1.00 atm and the temperature changes to 0 C. What is the new volume of the container

f litmus paper is dipped in an acidic solution and then in a basic one, what will happen? The paper will turn from blue to red. The paper will turn from red to clear. The paper will turn from blue to clear. The solution will turn from red to blue.

You need to make an aqueous solution of 0.125 M barium chloride for an experiment in lab, using a 250 mL volumetric flask. How much solid barium chloride should you add?