A carbon atom has a mass number of 12. How many protons and how many neutrons does it have?

If one body is positively charged and another body is negatively charged, free electrons tend to A. move from the negatively charged body to the positively charged body. B. remain in the negatively charged body. C.

Which choice is an example of producer A. Sun B. Tree C. Water D. Bird

How many valence electrons does Iron (Fe) have? How do you know?

How many moles are in 1.2*10^3 grams of ammonia

Convert 10 grams of hydrogen gas to moles

How many elements are found in the following chemical equation? K + Cl → KCl A. 1 B. 2 C. 3 D. 0

How many liters of 0.85 M HCl solution would react completely with 3.5 moles Ca (OH) 2?

The specific heat of aluminum is 0.897 J/g•°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of aluminum from 7°C to 29°C? A. Q = 0.75 g x 0.897 J/g•°C x 22°C B. Q = 0.75 g x 0.

Carbon dating advisable for measuring materials ages for a few years, thousands of years, millions of years

What is the pH of a solution with [H+] = 7.0 x 10^-2?