Maria poured 25 grams of water into a beaker. She stirred in 5 grams of salt. The salt dissolved. What is the total mass of Maria's solution of salt water?

What is ment by evaporation?

Which of the following is not a fundamental particle 2) Neutron 1) Proton 3) a-particle 4) Electron

Procedure in which a solution of known concentration is reacted with a solution of unknown concentration in order to determine the concentration of the unknown solution

Which statement describes the formation of our sun?

Why is reading important in science?

Gas is $2.50/gal at Station A and 85 cents/L at Station B. A) Convert the cost of gas at Station B to $/gal. B) At which station would you buy gas?

What does chemical reaction describe

Which of the following reactions shows that the formation of NO2 requires 33.1 kJ/mol? O A. N (9) + 20 (9) ► NO2 (g) + 33.1 kJ O B. įN2 (g) + O2 (g) + 33.1 kJ → NO2 (9) O c. 1 N2 (9) + O2 (g) NO2 (g) + 33.1 kJ OD. N (g) + O (g) + 33.1 kJ → NO2 (9)

Which of the following is not equal to 100 meters A 0.100 kilometers B 10 hectometers C10,000 centimeters D 100,000 millimeters

Paige heated 3.00 g mercury (ll) oxide (HgO 216.59 g/mol) to from mercury (Hg 200.59 g/mol) and oxygen (O2 32,00 g / mol). She collected 0.195 g oxygen. What was the percent yield of oxygen?