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sveticcg [70]
3 years ago
6

What is the chemical formula for the compound ammonium phosphate? Use the list of polyatomic ions and the periodic table to help

you
answer.

OA. NH4H2PO4
OB. (NH4)2PO4
OC (NH)3PO4
OD. (NH4),PO4
Chemistry
1 answer:
Ostrovityanka [42]3 years ago
4 0

Answer:

NH4)3PO4

this is a filler: jsjdkflflflsojsskksdnfkdod

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in heating a kettle of water on an electric stove, 3.34×10^3 J of thermal energy was provided by the element of the stove. yet,
insens350 [35]

Answer:

The percentage efficiency of the electrical element is approximately 82.186%

Explanation:

The given parameters are;

The thermal energy provided by the stove element, H_{supplied} = 3.34 × 10³ J

The amount thermal energy gained by the kettle, H_{absorbed}  = 5.95 × 10² J

The percentage efficiency of the electrical element in heating the kettle of water, η%, is given as follows;

\eta \% = \dfrac{H_{supplied} - H_{absorbed} }{H_{supplied}}  \times 100

Therefore, we get;

\eta \% = \dfrac{3.34 \times 10^3 - 5.95 \times 10^2}{3.34 \times 10^3}  \times 100 = \dfrac{549}{668} \times 100 \approx 82.186 \%

The percentage efficiency of the electrical element, η% ≈ 82.186%.

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