According to the conversation of mass, mass cannot be created or destroyed. This means whatever is done to one side, must be done to the other.
There are 4 Phosphorus atoms on the left, there must be 4 on the right. To do this, you must multiply the P2O3 by 2 to get 4 Phosphorus atoms and 6 Oxygen atoms. Now to balance the Oxygen atoms, you must multiply the oxygen atoms on the left by 3.
1 P4 + 3 O2 —-> 2 P2O3
Lastly, this equation type is synthesis (combination) because two reactants are becoming a single product.
Answer:
61.4 %
Explanation:
Let's consider a generic chemical reaction.
Reactants ⇒ Products
The theoretical yield is the maximum mass of product that theoretically can be obtained from the chemical reaction.
The actual yield is the mass of the product obtained from the reaction.
The percent yield is:
Percent yield = actual yield / theoretical yield × 100%
Percent yield = 60.9 g / 99.2 g × 100% = 61.4 %
Answer:
3.89 g Mg
Explanation:
2M = 2 mol/L
120 mL = 0.120 L
2 mol/L *0.120 L = 0.240 mol H3PO4
3Mg + 2H3PO4 ----> Mg3(PO4)2 + 3H2
from reaction 3 mol 2 mol
given 0.240mol x mol
x = 0.240*2/3 = 0.16 mol Mg
M(Mg) = 24.3 g/mol
24.3 g/mol *0.16 mol = 3.89 g Mg
Answer:
The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without this atmosphere. Radiatively active gases in a planet's atmosphere radiate energy in all directions.
The answer is 5 hours 45 minutes
