Answer: 319.9g
Explanation:
Mass of graduated cylinder with water = 534.26g
Mass of graduated cylinder = 214.36g
Mass of just water = Mass of graduated cylinder with water - Mass of graduated cylinder.
Mass of just water = 534.26g - 214.36 g = 319.9g
1)
4 molecules of Hygdrogen is produced.
2)
4 atoma of Oxygen is produced.
3)
1 molecule of Fe3O4 is formed.
4)
1mole of 3 Fe : mole of 4 H2O
3 :4
=3/4
5) There are 2×4 = 8atoms of hydrogen on Reactant side.
A toothpick will be more dense because of its small mass
Answer:
be able to meet long term timber needs.
Explanation:
Forest Services has been indicated for a long time the exhaustion of timer in the United States. However, in the recent decade, this trend has shown a reverse. The creation of nuclear energy and other technological developments that bring about drastic changes in our way of life. Gradually, the forest has recovered its trees and plants, and it is anticipated that timber will be available to meet long-term wood needs.
25 g of NH₃ will produce 47.8 g of (NH₄)₂S
<u>Explanation:</u>
2 NH₃ + H₂S ----> (NH₄)₂S
Molecular weight of NH₃ = 17 g/mol
Molecular weight of (NH₄)₂S = 68 g/mol
According to the balanced reaction:
2 X 17 g of NH₃ produces 68 g of (NH₄)₂S
1 g of NH₃ will produce 
g of (NH₄)₂S
25g of NH₃ will produce 
of (NH₄)₂S
= 47.8 g of (NH₄)₂S
Therefore, 25 g of NH₃ will produce 47.8 g of (NH₄)₂S
