An open system is
when there is a transfer of energy and matter with its surroundings.
A closed system is
where there is a transfer of energy, may it be heat or work, but not matter
with its surroundings.
An isolated system
is where there is no transfer of energy or matter with its surroundings.
Answer:
6.5
Explanation:
No of moles is the ratio of reacting mass to molar mass
RM - 270.4g
MM - 23+16+1= 40g/mol
270.4/40= 6.76mol
The answer is 2.75 because you divide 22 by 8
Answer:the answer is B.) H2O3(aq) and Mg (OH)2(s)
Explanation:
Answer is: D: Two molecules of potassium chloride react with one molecule of lead nitrate to form two molecules of potassium nitrate and one molecule of lead chloride.
Balanced chemical reaction: 2KCl + Pb(NO₃)₂ → 2KNO₃ + PbCl₂.
According to principle of mass conservation, number of atoms must be equal on both side of balanced chemical reaction.
KCl - potassium chloride.
Pb(NO₃)₂ - lead nitrate.
KNO₃ - potassium nitrate.
PbCl₂ - lead chloride.
