What would indicate that a physical change takes place when copper is drawn into wire? copper is heated, changing its molecular structure. copper is reshaped, but its molecular structure does not change. a new substance is formed that in drawing copper wire. copper changes its color when drawn into wire.

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

In the reaction between a crushed antacid tablet and vinegar what gas is emitted