I believe it is d. scientific law
poste en français s’il vous plaît
The correct answer is (4) zinc~
According to the reactivity series of metals, only zinc react with HCl (aq) at room temperature.
Hope this helps~
Answer:
150 times 1000 is how many meters it is away from earth because kilo means 1000
Explanation:
easy metric conversions
Answer:
Heat required to melt 26.0 g of ice at its melting point is 8.66 kJ.
Explanation:
Number of moles of water in 26 g of water: 26×
moles
=1.44 moles
The enthalpy change for melting ice is called the entlaphy of fusion. Its value is 6.02 kj/mol.
we have relation as:
q = n × ΔH
where:
q = heat
n = moles
Δ
H = enthalpy
So calculating we get,
q= 1.44*6.02 kJ
q= 8.66 kJ
We require 8.66 kJ of energy to melt 26g of ice.