23. Explain why children often look like their parents.

The density of copper is 8.92 g/cm3. What is the volume in L of a 230.14 mg sample of copper?

Which graph represents an exothermic reaction?

Water is found in which of the following states at earth's surface? A. Liquid and solid B. Liquid, solid, and gas C. Gas and liquid D. Only liquid

20 dekameters equals how many centimeters

In the following balanced neutralization reaction equation, how many moles of Ca (OH) 2 are required to completely neutralize 1.2 moles of HI? 2HI + Ca (OH) 2 → CaI2 + 2H2O

Is a sample of liquid nitrogen more dense than a sample of nitrogen gas

You have a balloon containing 1 L of air at STP in a vacuum chamber. What will the volume of the balloon be when you reduce the pressure by half and increase the temperature to 373 K?

Which method will correctly determine whether the forces on an object are balanced or unbalanced? A. Multiply the forces in the horizontal direction by the forces in the vertical direction. B.

Carbon is found in all known forms of life. Which statement best describes why carbon is uniquely suited to forming macromolecules such as those found in living organisms? A. Carbon forms large compounds that are not chemically reactive. B.

Name a type of asteroid and give a description.