Answer:
Solution
1.4 gm of CaO⟶n0.4 gm of Oxygen
1.0 gm of O2⟶3.5 gm of Ca
According to the law of definite proportions
n/m=y/x
⇒1.4/0.4=3.5.
⇒3.5=3.5
Explanation:
Answer:
2.4x10² kcal
Explanation:
As the serving of fish contains 50g of protein that is 4.0kcal/g:
50g × (4.0kcal/g) = <em>200kcal</em>
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And in 4g of fat that is 9.1kcal/g:
4g × (9.1kcal/g) = <em>36.4kcal</em>
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That means the kcal of the serving are:
200kcal + 36.4kcal = 236.4kcal
In 2 significant figures: <em>2.4x10² kcal</em>
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I hope it helps!
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