Is 0.297 cg the same as 2.97 milligrams

What is the molar mass of H2O?

Is cooking raw tomatoes a physical or a chemical change? Explain why?

Which is denser, isopropyll alcohol (rubbing alchohol) or water?

Maria needs to dilute her stock of 15.0 M HNO3 solution for a lab. She wants to get 525 mL of 1.00 M HNO3. How many mL of 15.0 HNO3 must she prepare?

You collect and measure samples of ice and surrounding ice water from a stream in the winter. you find that you collected the same number of water molecules in each form. the volume of the ice samples are larger than the ice water samples.

How many molecules of liquid ethanol are in 1.00mL of ethanol, given its density of 0.789 g/mL

Which of these factors makes nuclear energy unsustainable? A. Nuclear power plants last the longest. B. Nuclear energy requires wind turbines. C. Nuclear power plants cost the most to build. D. Nuclear energy relies on uranium.

A star is estimated to have a mass of of 2 X 10^36 kg. Assuming it to be a sphere with an average radius of 7.5 X 10^5 km, calculate the average density of the star in units of grams per cubic centimeter. Density = g/cm^3

Which is the correct net ionic equation for the reaction of aqueous ammonia with nitric acid? Which is the correct net ionic equation for the reaction of aqueous ammonia with nitric acid? a. NH3 (aq) + NO3? (aq) - -> NH2 - (aq) + HNO3 (aq) b.

A mineral crystallizes from magma deep inside Earth. Which characteristics can be determined given only the information above? luster streak crystal size crystal structur