The rate of chemical changes (how fast they occur) can depend on several factors. What are two factors that can influence the rate of a chemical change? Explain how these factors might affect chemical changes.

Which two factors are essential for a molecule to be considered polar? nonpolar bonds and asymmetrical structure, nonpolar bonds and symmetrical structure, polar bonds and symmetrical structure, polar bonds and asymmetrical structure

According to the law of conservation of energy, A) an object loses most of its energy as friction. Eliminate B) the total amount of energy for a system stays the same. C) the potential energy of an object is always greater than its kinetic energy.

What is the significance of Einstein's famous equation E = mc 2? (A) Energy is not related to mass. (B) Mass can be destroyed. (C) Energy can be destroyed. (D) Mass and energy can convert to one another.

Use the drop-down menus to match each part of the scenario to the correct scientific practice. Akira records the speed of a reaction, first without a catalyst, and then with a catalyst.

A fish in the sea in the deep ocean has a lure that lights up to attract mates and prey. Why would it need this in adaptation

Blanking and Punching size:A compound die will be used to blank and punch a large washer out of 6061ST aluminum alloy sheet stock 3.80 mm thick. The outside diameter of the washer is 60.0 mm and the inside diameter is 28.0 mm.

Whats the difference between china and Europe

Iodine pentafluoride gas reacts with iodine fluoride gas producing iodine heptafluoride gas and iodine gas. What is the maximum number of grams of iodine gas that can be produced from a reaction of 10.0 g of iodine pentafluoride with 11.

What evidence of a chemical reaction might you see in dropping an Alka-Seltzer tablet into a glass of water?

State hess's law. how is it used