For the general chemical equation 2A + 3B + 4C+D, how many moles of A are required to produce 18.4 mol of C?

a. 9.2 mol

b. 13.8 mol

c. 36.8 mol

d. 73.6 mol

3. A wave has y frequency of 100 Hz and a speed of 50 m/s. What is the wavelength?

2. Where do traits come from? 3. There are sections of DNA called genes. What do genes do?

Tap water has a higher conductivity reading than distilled water because ... A) distilled water contains ions B) both contain ions but tap contains more ions C) tap water contains ions

What is an absorption spectrum? A. The colors absorbed when an element gains energy B. The energy released when an element loses energy C. The energy released in a chemical reaction D. The frequencies that pass through an element

Which best evaluates the following statement: It's greener to wash dishes by hand than to use a dishwasher?

Based on the passage, where in the United States would a physician encounter the most cases of SAD?

Draw the alkyne formed when 3,4-dichloroheptane is treated with an excess of strong base such as sodium amide

A penny has a mass of 2.50g and the moon has a mass of 7.35 X 10^22 Use this information to answer the questions below. Be sure your answers have the correct number of significant digits.

If a car tire has a diameter of 3232 inches, what is the approximate circumference of the tire?

9) Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak.