Magnesium has a density of 1.071g/cm^3. Aluminum has a density of 2.700 g/cm^3. An unknown metal has a mass of 15g and a volume of 14cm^3. Is the unknown metal magnesium or aluminum? Show your work.

Which units of pressure are equivalent and require no conversion of the value

How does a runoff get polluted.

Which example shows a population of organisms? A. a single monkey B. a group of tree monkeys C. a group of tree monkeys and a cluster of trees D. a group of tree monkeys, a cluster of trees, a pile of rocks, and a fierce wind

What is an acid according to Arrhenius? a. a substance that ionizes to yiled protons in aqueous solution b. a substance that is a hydrogen ion donor c. a substance that accepts an electron pair d. a substance that is a hydrogen ion acceptor

Mole concept One can of Welch's grape soda contains 0.283 moles of fructose (C6H1206). How many grams of fructose are in one can of this soda?

How do you measure heat in high school chemistry

Which of these is an element? Mg TiCI2 HCI LiF

Two technicians are discussing refrigerant lines. Technician A says that line connections must be tight but not so tight that air can't get through.

How does the state of matter affect the speed of sound

Which of the processes is exothermic? 1. evaporation of alcohol 2. sublimation of iodine 3. solidification of volcanic lava 4. burning of paper