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