How many grams of oxygen gas will react completely with a block of calcium metal that is 3.0 cm by 3.5 cm by 4.2 cm, if the density of calcium is 1.55 g/mL?

Brass is an alloy of copper and zinc. The two metals are melted, mixed, and then solidified. How would you BEST classify brass? A) homogeneous mixture B) heterogeneous mixture C) pure substance: mixture D) pure substance: compound

What feature of a chemical equation is used to balance the equation and make sure it obeys the law of conservation of mass? a numbers b coefficient c superscript d subscript

When does metamorphism occur

Contrary to legend, camels do not store water in their humps. Camel humps actually contain large fat deposits that can serve as a source of water. Calculate the volume of water in liters that a camel can produce from 1.0 kg of fat.

Which of the following statements describes a basketball under high pressure (fully inflated) compared to a basketball under low pressure (deflated) ? A In a fully inflated basketball, the particles of gas have lower energy B.

Which level of organization is best represented by the corn plant? tissue, the highest level of organization organ, the lowest level of organization organism, the level of organization directly above organ system organ system, the level of

What is one product of a condensation reaction between two amino acids, such as glycine and alanine?

A solution is made by dissolving 25.20 g of aluminum acetate in 185.0 mL of water. What is the concentration of acetate ions?

Which best describes how sediment forms? erosion breaks down rock and other material molten rock cools above earths surface loose material is cemented by pressure chemical changes cause sediment to compact together

How will you know whether a solution is saturated or supersaturated?