A) any substance that is not alive B) any substance that has a definite composition C) a toxic substance D) an unnatural additive placed in food
A) mathematical modeling B) the chemistry of living things C) non-carbon related compounds D) the identification of the composition of materials
A) crystals and minerals B) properties, changes, and relationships between energy and matter C) carbon-containing compounds D) the chemistry of living things
A) in order go learn basic information B) by accident C) only to make money D) long after the basis research is complete
A) to solve a particular problem. B) to develop new products C) to understand an environmental problem D) to gain knowledge
A) in order to make money B) by accident C) to solve a particular problem D) to learn basic information
A) volume B) mass C) density D) amount of energy
A) the ability to carry an electric current well and to hold electric charge B) being malleable and ductile C) being brittle and hard D) taking up space and having mass
A) the smallest unit of a compound B) the smallest unit of matter that maintains its chemical identity C) smaller than an electron D) always made of carbon
A) volume B) mass C) density D) weight
A) light B) smoke C) air D) water vapor
A) as the force of Earth's gravity on an object increases, the object's mass increases B) mass is determined by comparing the mass of an object with a set of standard masses that are part of a balance C) mass is expressed in pounds D) mass if often measured with a spring scale
A) grinding B) cutting C) burning D) boiling
A) burning B) igniting C) melting D) rusting
A) equilibria B) synthetics C) reactants D) products |