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3 years ago

9

The following chemical equation is unbalanced. When the equation is balanced, what is the coefficient for pure calcium (Ca)? A.

1 B. 2 C. 3 D. 4

2 answers:

erik [133]3 years ago

5 0

<span>3Ca + 2AlPO4 -> 2Al + Ca3(PO4)2 . . .the coefficient for Ca is 3.</span>

Eddi Din [679]3 years ago

5 0

The coefficient for Ca is 3.

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An Argon laser gives off pulses of green light (wavelength = 514 nm). If a single pulse from the laser has a total energy of 10.

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