What is the molar mass of a gas whose density at stp is 3.74 g/l?

What does AC stand for in physics? O A. alternating current B. alternative circuit OC. alternating composition OD. all charge

A chemist adds 150.0mL of a 0.12/molL aluminum sulfate Al2SO43 solution to a reaction flask. Calculate the mass in grams of aluminum sulfate the chemist has added to the flask. Round your answer to 2 significant digits.

Katie wants to see if apples that are kept cold will rot or stay edible. She places an apple in the refrigerator and records the date. What should she use as a control?

A helium-filled balloon escapes a child's hand at sea level and 21.1 deg C. When it reaches an altitude of 3000 m, where the temperature is 4.8 deg C and the pressure is only 0.72 atm, how will its volume compare to that at sea level?

Give the number of significant figures: 0.882 mm

Where are alkaline earth metals found on the periodic table

IKI will turn deep purple in the presence of starch. Which term is applied to IKI in this situation? A. indicator B. litmus C. modifier D. product

How many electrons are in the 2p sublevel of nitrogen?

Which answer choice correctly lists the elements found in Period 2 of the periodic table? A. oxygen, fluorine, neon B. sodium, magnesium, aluminum C. nitrogen, phosphorus, arsenic D. beryllium, magnesium, calcium

Write the chemical formula for each compound described. a) barium chloride (1 Ba ion, 2 Cl ion)