If a machine changes the direction, but not the amount of the input force, the mechanical advantage is greater than 1. true or false

What volume does 1.70 ×10–3 mol of chlorine gas occupy if its temperature is 20.2 °c and its pressure is 795 mm hg?

Select the statement that describe chemical properties a. antacid tablets neutralize stomach acid b. helium is the lightest monatomic element c. water freezes at 0 celsius d. mercury is liquid at room temperature

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate