Αποτελέσματα Αναζήτησης
CHAPTER 1 REVIEW Matter and Change SECTION 1 SHORT ANSWER Answer the following questions in the space provided. 1. a Technological development of a chemical product often (a) lags behind basic research on the same substance. (b) does not involve chance discoveries. (c) is driven by curiosity. (d) is done for the sake of learning something new.
Matter and Change. Answer the following questions in the space provided. (a) lags behind basic research on the same substance. (b) does not involve chance discoveries. (c) is driven by curiosity. (d) is done for the sake of learning something new. (a) develop new products. (b) make money.
3. A chemical change involves a rearrangement of the atoms of different elements in a substance and the formation substances with different physical properties. A physical change can occur in properties such as the state or shape of a substance, but it will not affect the composition of that substance. 4. Mass is a measure of the amount of matter.
chemical properties of matter. Classify changes of matter as physical or chemical. Explain the gas, liquid, and solid states in terms of particles. Explain how the law of con-servation of energy applies to changes of matter. Distinguish between a mix-ture and a pure substance. FIGURE 3 Both elements and compounds are made of atoms, as shown in
CHAPTER 1 REVIEW Matter and Change MIXED REVIEW SHORT ANSWER Answer the following questions in the space provided. 1. Classify each of the following as a homogeneous or heterogeneous substance: a. sugar d. plastic b. iron filings e. cement c. milk 2. Select the most appropriate branch of chemistry from the following choices to best describe each of
1. Organic chemistry —the study of most carbon-containing compounds 2. Inorganic chemistry—the study of all substances not classified as organic, mainly those compounds that do not contain carbon 3. Physical chemistry—the study of the properties and changes of matter and their relation to energy 4.
CHAPTER 1 REVIEW Matter and Change SECTION 1-1 SHORT ANSWER Answer the following questions in the space provided. 1. Technological development of a chemical product often . (a) lags behind basic research on the same substance (b) involves accidental discoveries (c) is designed to understand a practical problem
