Answer:
chemical change
Explanation:
Ash is formed as result of burning of paper which is a new product. Chemical change a new substance must form.
Answer:
It is solid
Explanation:
Well a can i hard and solid because it is metal
Answer:
maintain
Explanation:
i don't know it's a guess
Δ H reaction = q / n where q: amount of heat released and n is number of moles of substance.
q = m . C . ΔT where:
m = mass of substance (g)
C = Specific heat capacity (4.18)
ΔT = change in temperature = 24.25 - 23.16 = 1.09
q = 1000 x 4.18 x 1.09 = 4556 J = 4.556 kJ
number of moles (n) = Molarity (M) x Volume (L)
= 0.185 M x 0.07 L = 0.01295 mole
Δ H = q / n = - (4.556 kJ / 0.01295 mole) = -351.8 kJ / mol
Note: it is exothermic reaction (-ve sign) i.e. temperature is raised
Answer:
7 AM was the first to be the best Friend and a friend and I have seen the target market share of a million dollars and Diamond.
