If you've been injured in the lab, what's the first thing you should do?

How many moles of sodium chloride (NaCl) solute are in 155 grams of an 85.5 percent by mass solution? 1.19 mol NaCl 2.27 mol NaCl 7.75 mol NaCl 10.6 mol NaCl 4. How many grams of zinc metal will react completely with 8.2 liters of 3.

The very common mineral shown in this photograph is commonly a pink - to cream-colored mineral with wavy, light-colored lines. it does not effervesce. what mineral is it?

If 6.50 g of the unknown compound contained 0.217 mol of C and 0.433 mol of H, how many moles of oxygen, O, were in the sample?

For the skeletal chemical equation Fe2P (s) + S (s) → P4S10 (s) + FeS (s) what is the coefficient of P4S10 in the balanced equation? (Balance the equation with the smallest possible whole number coefficients.) 1. 6 2. 18 3. 9 4. 2 5. 5 6. 10 7. 3 8.

Which statement about an element's average atomic mass is correct? a. It is determined by counting the number of isotopes in a sample of the element. b. It is equal to one-twelfth the mass of the most common isotope. c.

A car traveled at a constant velocity of 70 mph from noon to 2:00 pm. At 3:00 pm the velocity of the car was 80 mph; and finally at 4:30 pm the velocity of the car was 40 mph.

How do you number cycloalkanes?

What causes the centripetal accleeration of an electron in a hydrogen atom?

Write a word equation for the extraction of tin from tin oxide using carbon

What is the electron configuration for neon?