How many molecules of sulfur trioxide are present in 1.87 moles of this compound?

Indicate which of the following are exact numbers. (Select all that apply.) 1. the number of microseconds in a week 2. the number of inches in a mile 3. the mass of a paper clip 4. the number of pages in a book 5. the surface area of a dime 6.

If i add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be?

2. How can you use mass and volume to find density of a substance?

How many grams of kbr are required to make 350. ml of a 0.115 m kbr solution? 3.04 g 4.79 g 40.3 g 0.338 g?

How do you balance chemical equation H3PO4+Ca (OH) 2> Ca3 (PO4) 2+H2O

1. Sara tells Michael she is 160 centimeters tall, while Michael says he is 60 inches tall. If there are 2.54 centimeters in an inch, who is taller

How do you tell if a compound is polar or non polar

What two ions are central to the arrhenius definitions of acids and bases?

Question 1 A process in which suthetances chemically rearrange to form new substances o Molecule Energy o Organism O Chemical reaction O Matter O Cellular respiration

What are the uses of evaporative salts?