How many atoms of Mg are present in 97.22 grams of Mg?

6.022 * 1023

2.408 * 1024

4.818 * 1024

5.855 * 1025

Why do saturated fatty acids have straight structures, while unsaturated fatty acids have bent structures? a. Saturated fatty acids have a larger mass. b. Saturated fatty acids contain many more bonds. c.

Thorium-234 has a half life of about 25 days. What percent of the thorium will remain after 125 days

If the experimental value for the percentage of O is 37%, The accepted value of the percentage of Oxygen is 40%, what is the error in the experiment? 6.5%08.1% 7.5% 5%

Why do need to count atoms

Given the reaction: Mg (s) + 2 AgNO3 (aq) - - > Mg (NO3) 2 (aq) + 2 Ag (s) Which type of reaction is represented? (1) single replacement (3) synthesis (2) double replacement (4) decomposition

A child sits on a partially filled balloon and decreases the volume by half. What happens to the pressure inside of the balloon?

Which phrases describe all the outer planets' motion? Check all that apply. no rotation fast rotation slow revolution opposite revolution north to south rotation

Rank the species (amide ion, ammonia, or ammonium ion) from the largest to the smallest H-N-HH-N-H bond angle? Rank from largest to smallest H-N-HH-N-H bond angle. To rank items as equivalent, overlap them.

What is the ratio of effusion rates of krypton and neon at the same temperature and pressure?

Balance the following equation _NaOH (aq) + _HNO3 (aq) > _NaNO3 (aq) + _H2O (1)