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2 years ago

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Suppose an unknown compound XY has an X-to-Y mass ratio of 4.0. If decomposition of compound XY gives 12.0 grams of X, then how

many grams of Y must form? Suppose an unknown compound XY has an X-to-Y mass ratio of 4.0. If decomposition of compound XY gives 12.0 grams of X, then how many grams of Y must form? 12.0 grams 3.0 grams 48.0 grams 4.0 grams none of the above

1 answer:

valina [46]2 years ago

6 0

Answer:then the number of grams of Y that must form is 3

Step-by-step explanation:

Suppose an unknown compound XY has an X-to-Y mass ratio of 4.0, it means that

X/Y = 4

Crossmultiplying,

X = 4Y

If decomposition of compound XY gives 12.0 grams of X, then the number of grams of Y that must form would be

X = 4Y

Substituting X = 12 into the equation, it becomes

12 = 4Y

Y = 12/4 = 3 grams

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Power=2386.92414 watt.........Answer

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2 years ago

g Steel used for water pipelines is often coated on the inside with cement mortar to prevent corrosion. In a study of the mortar

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Answer:

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2 years ago

Sitting at the edge of a cliff, you throw a stone vertically upward with a velocity of 30 m/s. The height of the stone above the

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Answer:

Step-by-step explanation:

Given that,

The function f(t) = 3t − 0.5t² is the height of the motion of the stone in 10m units

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Let find it turning point

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t=3.1secs. To 1d.p

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Maximum height is 45m.

c. The stone will spend two times the time it uses to reach t maximum height to return to the height of the cliff

Time to return back to the cliff is

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S=78.48m

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From the graph

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The the height of cliff downward is

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Step-by-step explanation:

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2 years ago

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Answer:

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Step-by-step explanation:

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equate equation A and equation B

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Group terms that contain the same variable

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therefore

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2 years ago