Where does energy go after it has been used?

The molecular mass of the compound is 90 amu what is the molecular formula? Of C4H10O2

Sublimation and boiling both happen at the surface of the substance. a. True b. False

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

Copper has a density of 8.96 g/cm3. of a cylinder of copper weighing 48.85 g is dropped into a graduated cylinder containing 20.00 ml of water, what will be the new water level

How many protons, and neutrons are in nuclide tin-115?

Why do alligators need a warm climate? A. They need to live in a place with enough food. B. They cannot produce enough heat to keep their bodies warm. C. They have scales rather than hair, which keeps them too hot. D.

What human body system can be fossilized? Explain

A reaction mixture initially contains 22.02 g Fe2O3 and 14.66 g CO. Assume that the reaction will progress to 100% completion. What mass (in g) of the excess reactant is leftover?

A cylinder at left with balls evenly spaced throughout the cylinder has an arrow leading to a cylinder at right cylinder with balls in a layer at its bottom. Which change of state is shown in the model?

Which ion was fomed by providing the second ionization to remove an electron A) ca2 + B) N3 - B) Fe3 + C) S2