How Many of the Following Statements Are True Concerning Chemical

question 64

Multiple Choice

How many of the following statements are true concerning chemical equations? I.Coefficients can be fractions.
II.Subscripts can be fractions.
III.Coefficients represent the relative masses of the reactants and/or products.
IV.Changing the subscripts to balance an equation can only be done once.
V.Atoms are conserved when balancing chemical equations.

• A)1
• B)2
• C)3
• D)4
• E)5

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Definitions:

Bacterial Infections

Diseases caused by harmful bacteria entering and multiplying within the human body or on the surface of the skin.

Peptidoglycan

A complex polymer that forms the cell walls of bacteria, providing structural support and shape.

Plasma Membranes

The semi-permeable membrane enclosing the cytoplasm of a cell, controlling the movement of substances in and out of the cell.

Lipids

A group of naturally occurring molecules that include fats, waxes, sterols, and fat-soluble vitamins among others.