Answer:
Barium chloride + Sodium phosphate → barium phosphate + sodium chloride
Explanation:
Double replacement:
It is the reaction in which two compound exchange their ions and form new compounds.
AB + CD → AC +BD
Chemical equation:
BaCl₂ + Na₃PO₄ → Ba₃(PO₄)₂ + NaCl
Balanced chemical equation:
3BaCl₂ + 2Na₃PO₄ → Ba₃(PO₄)₂ + 6NaCl
The cation and anion of both reactants are exchanged with each other.
Ba²⁺ react with PO₄³⁻ and form Ba₃(PO₄)₂ while Cl⁻ react with Na⁺ and form sodium chloride.
Molecular equation:
Barium chloride + Sodium phosphate → barium phosphate + sodium chloride
Answer:
C. Average Speed = 4 m/s
Explanation:
Average speed is defined as total distance travelled per unit time taken
From = 5s to = 10 s
Total time = 10 -5 = 5s
Distance travelled in first 5s= = 10 m
Distance travelled in first 10s = 30 m
Total distance between 5 s- 10 s = 30 - 10 = 20 m
!! Please look at the attached image
Answer:
67.88% is the percent yield.
Explanation:
Moles of methane =
According to reaction,1 mole of methane gives 1 mole of carbon dioxide gas, then 3.75 moles of methane will give :
of carbon dioxide gas
Mass of 3.75 moles of carbon dioxide gas:
3.75 mol × 44 g/mol = 165 g
Theoretical yield of the carbon dioxide gas = 165 g
Experimental yield of the carbon dioxide gas = 112 g
The percentage yield of the reaction :
67.88% is the percent yield.
Hey there!:
Mass = 28.7 g
Volume = 35 mL
Therefore:
D = m / V
D = 28.7 / 35
D = 0.82 g/mL