24g of magnesium were burned in oxygen. The compound formed had mass of 40 g. Explain why the mass has gone up

If only one-fourth the amount of brown sugar in the recipe were used, how much brown sugar would be used?

Why are some substances not able to dissolve in water? A. The attraction between the solute and solvent particles is too strong to mix. B. The attraction between the solute and solvent is not very strong. C.

As you have seen in this lab, the density of water is near 1 g/cm3. Anything with a density lower than this will float in water, and anything with a higher density will sink. Imagine you are building a submarine.

At a low temperature dry ice (solid CO2), calcium oxide, and calcium carbonate are introduced into a 50.0-L reaction chamber. The temperature is raised to 900.! C.

The Calvin cycle is another name for the

What's the ratio of 80% hydrogen

Why is warmer near earth surface

A platinum wedding band contains 0.077 mol of platinum. How many atoms of platinum are in the 15-gram platinum wedding band?

In an ecosystem where 500,000 kcal of sunlight is available for producers, approximately how much chemical energy will be contained in secondary consumers?

Question 6 if a gas pressure gauge reads 32.0 psi, what is the pressure in inches of mercury? 165 in. hg 15.7 in. hg 65.1 in. hg 32.0 in. hg 6.19 in. hg