What is the total amount of heat absorbed by 100.0

grams of water when the temperature of the water is

increased from 30.0°C to 45.0°C?

A) 418 J

B) 6270 J

C) 12 500 J

D) 18 800 J

What is a molecule?

How many reactant molecules and product gas molecules are in this equation? N2 (g) + 3H2 (g) + 2NH3 (g)

Samantha is making a vegetable soup that contains carrots, beans, water, salt, pepper, bits of ham, and onions. the soup has to cook for 4 hours. while the soup is cooking, what will happen to some of the minerals that are in its ingredients?

2. How do elements move from one phase to another? Give an example.

The recommended daily calcium I take for a woman over 50 years of age is 1200 mg. if one cup of milk has 306mg of Calcium how many cups of milk provide this amount of Calcium? how many milliliters of milk does this correspond to

Acetylene is hydrogenated to form ethane. the feed to the reactor contains 1.4 mol h2/mol c2h2. (find properties of the reactants/products in appendix of book) a.

Several properties of the element magnesium are shown. Which one is a chemical property?

How does the quantity of atp produced as a result of activity by the electron transport chain compare to the quantity produced as a result of glycolysis?

Molybdenum has a molar mass of 95.94g/mol. How many molecules of molybdenum are in 150.0 g of molybdenum

Describe a way that people might be able to solve each envioronmental problem listed below. coal mining can harm habitats and cause pollution.