When vinegar and baking soda are combined, bubbles begin to form. Bubbles are evidence of a chemical reaction because they -

A. pop when they are touched.

B. show that a gas is forming.

C. form at a fast rate.

D. are generally transparent.

What is sulfur is it a gas or solid

All matter has mass and takes up space. True False

What is the number of formula units in a 5.88 mol sample of Ca2O?

The following equation shows the correct molecules formed in the reaction, but the products are incorrect. CH4 + 2O2 → H2O + CO2 How would you correct the products? Explain your reasoning.

AlCl3 and Na2SO4 Balanced Equation Total Ionic Equation Net Ionic Equation

Which of the following characteristics is fixed, or definite, for all states of matter? volume shape mass energy

Describe a change caused by kinetic energy as well as a change caused by potential energy.

Which is more concentrated, a solution (1) prepared by dissolving 21.0 g of naf (0.500 mol) in enough water to make 500 ml of solution or a solution (2) prepared by dissolving 10.5 g (0.250 mol) of naf in enough water to make 100 ml of solution?

Hi i need hel does any one know what P3N2 means?.-.

How does thermal energy transfer when a room is heated by a furnace?