In an experiment, 1 mol of propane is burned to form carbon dioxide and water.

C3H8 + 502 3C02 + 4H20

1. How many moles of oxygen are needed for the reaction?

A 3 mol

B 1 mol

C 5 mol

D 10 mol

Why do electromagnetic waves not require a medium for travel?

What is the formula for height in physics

Lightning is created when charges flow rapidly from a. ground to cloud. b. cloud to ground. c. cloud to cloud. d. all of these.'

If you left a board lying in the grass for a few days, what would happen to the grass underneath the board? Why?

Find the current to run an electrical motor that has an output of 2.1 horsepower and is 71% efficient. operates at 171 volts answer to nearest tenth of an amp.

A baseball flying through the air has kinetic energy because of its motion. true or false?

How many poles does Jupiter's magnetosphere have? a. 2 c. 8 b. 4 d. 9

Which describes nuclear fusion? The nuclei of two atoms combine to form a larger nucleus. The nucleus of one atom splits to form two smaller nuclei. The electrons of two atoms combine to form a cluster of electrons.

In a class debate, a student argues that the big bang theory is "just a theory." What is most likely to be this student's understanding of scientific theories? A. Theories agree with observations of nature. B. Theories are just guesses. C.

Look at the advertisement. A poster that reads, "There's more to resistors than resistance. If you're really serious about cost, be serious about quality." with tools. Which persuasive media technique is used in this advertisement