The cooling of a refrigerator happens because of the heat flow towards the cooler object. Therefore, the heat flows into the refrigerant. This is as expected according to what law?

The application of scientific knowledge to benefit people is___. A. technology B. society C. ethics D. economics

When substances are formed that are different from the starting substances, a physical change has occurred. True False

What does health and living mean

The mantle is: Othicker than the crust Ohotter than the core Omade of iron and silicon Oall of the above

A mixture of ethyl alcohol (molecular mass = 46.1 u) and water (molecular mass = 18.0 u) contains one mole of molecules. The mixture contains 20.0 g of ethyl alcohol. What mass m of water does it contain?

Use Henry's law and the solubilities given below to calculate the total volume of nitrogen and oxygen gas that should bubble out of 1.0 L of water upon warming from 25 ∘C to 50 ∘C.

Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain number of water molecules are included in the solid structure.

When you light a fire place what energy transformation takes place

Correctly identify the generic formula for a synthesis reaction. a. AB + A+B b. A+B → AB c. CxHx + O2 → CO2 + H2O d. AB + C + AC + B e. AB + CD → AD + CB

Zinc phosphide, Zn3P2, is often used as a rat poison. Phosphorus has 5 valence electrons. How many valence electrons does each zinc atom lose?