Answer:
Yes, a chemical change occurs.
Explanation:
CaSO4 is insoluble in the water, so a chemical reaction or chemical change occurs.
Answer:
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true
It is 25%. 25g ÷ 100g × 100% = 25%
The answer should be E.the total number of protons and neutrons in the nucleus
Answer:
The limiting reactant is salicylic acid.
Explanation:
From the equation of reaction,
1 mole of acetic anhydride (C4H6O3) (102g) reacts with 2 moles of salicylic acid (C7H6O3) (276 g)
80 g of acetic anhydride would react with (80×276/102) = 216.5 g of salicylic acid
216.5 grams of salicylic acid that is required to react with 80 grams of acetic anhydride.
The available mass of salicylic acid is 70 grams which makes salicylic acid the limiting reactant.
