Write A if only statement A is true; Write B if only statement B is true; Write C if both statements A and B are true; Write D if both statements A and B are false. ______ (1) A. In copper reaction, the initial mass of the sample is referred to as the actual yield. B. The poisonous brown gas with an irritating odor in copper reaction is calcium oxide. ______ (2) A. Spatula is used for measuring/removing small amounts of solids or powders (often when obtaining mass). B. Addition of Magnesium metal to a copper sulfate solution precipitates solid copper in a single displacement reaction. ______ (3) A. Heating Copper hydroxide produces a black solid which is Copper oxide. B. The theory associated with copper reactions experiment is the atomic theory.
Write A if only statement A is true;
Write B if only statement B is true;
Write C if both statements A and B are true;
Write D if both statements A and B are false.
______ (1) A. In copper reaction, the initial mass of the sample is referred to as the actual yield.
B. The poisonous brown gas with an irritating odor in copper reaction is calcium oxide.
______ (2) A. Spatula is used for measuring/removing small amounts of solids or powders (often when obtaining mass).
B. Addition of Magnesium metal to a copper sulfate solution precipitates solid copper in a single displacement reaction.
______ (3) A. Heating Copper hydroxide produces a black solid which is Copper oxide.
B. The theory associated with copper reactions experiment is the atomic theory.
______ (4) A. The scientific paper provides information about a chemical's toxicity, health hazards, physical properties, fire, and reactivity data—including storage, spill, and handling precautions.
B. Chemicals and other hazardous materials are an integral component of the laboratory environment.
______ (5) A. The skull and crossbones signage indicates corrosive substances.
B. Globally Harmonized System Pictograms illustrates different signages in relation to safety and proper handling of certain chemicals.
Step by step
Solved in 4 steps
