Answer:the answer is a because the chemicals do not change
Explanation:
Answer:
lonic
Explanation:
MgF2 ( Magnesium fluoride ) is ionic.
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Answer:
H = 4,034,250 J
Explanation:
Mass, m = 165kg = 165,000g (Converting to grams)
Initial temperature = 15.7°C
Final temperature = 95.7°C
Temperature change, ΔT = 95.7 - 15.7 = 50°C
Specific heat capacity, c = 0.489 J/g·°C
Heat = ?
All the parameters are related with the equation below;
H = m * c * ΔT
H = 165000 * 0.489 * 50
H = 4,034,250 J
Answer:
Physical change since evaporation occurs
2 correct answers: Chemical and neither endothermic or exothermic
