Page 17 - Chemistry

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The methane model shown What number should be placed

contains - in the blank in order for this

equation to follow the Law of

A. 5 elements Conservation of Mass?

B. 2 elements

C. 2 compounds 57g + ___ → 34g + 10g + 26g

D. 1 atom

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Which of the following best illustrates In the chemical equation

the law of conservation of mass? HCl + CaCO → ___ , which of
3

A. 3 AgNO + 2 Cu  Cu(NO ) + 2 Ag the following elements cannot
3 2
3
be a part of the products?
B. 2 AgNO + 1 Cu  1 Cu(NO ) + 2 Ag
3
3 2
A. Carbon C. Nitrogen

C. AgNO + 2 Cu  2 Cu(NO ) + 2 Ag B. Chlorine D. Oxygen
3
3 2

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