Answer:
b. John has to pour each liquid into a container with the same mass and then compare them
would be the correct answer. Hope this helps!
Explanation:
Answer:
Selenium has 36 valence electrons.
Answer:
Mass = 114.5 g
Explanation:
Given data:
Mass of zinc = 55 g
Mass of ZnCl₂ produced = ?
Solution:
Chemical equation:
Zn + 2HCl → ZnCl₂ + H₂
Number of moles of Zn:
Number of moles = mass/molar mass
Molar mass of Zn = 65.4 g/mol
Number of moles = 55 g/ 65.4 g/mol
Number of moles = 0.84 mol
Now we will compare the moles of Zn and zinc chloride,
Zn : ZnCl₂
1 : 1
0.84 : 0.84
Mass of ZnCl₂:
Mass = number of moles × molar mass
Molar mass of ZnCl₂= 136.3 g/mol
Mass = 0.84 mol × 136.3 g/mol
Mass = 114.5 g
Im sure that the answer is C, correct me if im wrong.
Answer:
2k+2hcl---2kcl+h2
Explanation:
because we have to balance it and in order to balance it we have to make it in equal form
