Which of the following would most practically be studied by use of a model? The global movement of ocean water. The veins of a leaf. The parts that make up a can opener. The inside of a light bulb.

Which of the following is a postulate of the kinetic-molecular theory? A. Gases are made up of particles that act like small, soft spheres that are always moving in a calculated fashion. B.

When an ionic bond is formed, what type of atom is likely to lose one or more electrons?

What is the process of grouping similar things together

Which is a nonliving factor that defines a spruce-fir forest ecosystem? A) type of soil B) type of trees C) type of bacteria D) type of mammals

What are eggshells made of?

According to the octet rule most elements need_valence electrons.

What is the average speed of particle in a gas at room temperature? Why is temperature an important variable?

An electron is in a region outside the nucleus. An electron a) Is larger than a proton and has no charge b) Has less mass than a proton and has a negative charge c) Is smaller than a proton and has no charge d) Has a positive charge

Under conditions of "feasting", the body favors oxidation/utilization of which source for energy production

2.17 in to 10^23 molecules of Br 2 to moles