Subscripts cannot be changed because they are the ratio of the amount. And as we know, in a chemical equation/reaction, mass cannot be created nor destroyed. Therefore, we cannot change subscripts, however, we could change coefficients. <span />
It would depend on what the substance was. If we're talking ice to water, there doesn't have to be much of a difference; but if we're talking like gold, it has to be 1,948 degrees before it melts.
<span>Kr> Br> As> Se> Ge> Ca> Ga > K </span>
We know that
1 calorie = 4.184 Joules
so let us convert the joules to calories first
1 Joule = 1 / 4.184 Cal
150000 = 150000 / 4.184 Cal = 35850.86 Cal
Now in case of food articles
one calorie = 1 Kcal
Therefore on food label it will = 35.851 Cal
Answer:
d. a brittle solid.
Explanation:
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In this case, since cesium fluoride is widely known as an ionic compound due to the large electronegativity difference, it is possible to discard a. due to its crystalline structure, b. because conducting solids are metals, c. because ionic compounds are not likely to be gases and e. because even when it is soluble in water, the problem is not referring to an aqueous solution; therefore, the answer is d. a brittle solid.
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