Its mass will stay the same
Answer:
This relationship between temperature and pressure is observed for any sample of gas confined to a constant volume. If the temperature increases by a certain factor, the gas pressure increases by the same factor.
Considering that the water is at atmospheric pressure, its density at 21°C is still about 0.99 g/mL. The volume of the water is calculated by dividing the given mass by the density. That is,
Volume = mass / density
Substituting the known values to the equation,
volume = 23.2243 grams/ 0.99 g/mL
Simplifying,
volume = 23.46 mL
<em>Answer: 23.46 mL</em>
Answer:
Mass = 10.1 g
Explanation:
Given data:
Mass of Fe₂O₃ produced = ?
Mass of iron rust = 12.0 g
Solution:
Chemical equation:
4Fe + 3O₂ → 2Fe₂O₃
Number of moles of iron:
Number of moles = mass/ molar mass
Number of moles = 12.0 g/ 55.85 g/mol
Number of moles = 0.215 mol
Now we will compare the moles of iron and Fe₂O₃ .
Fe : Fe₂O₃
4 : 2
0.215 : 2/4×0.125 = 0.063 mol
Mass of Fe₂O₃ :
Mass = number of moles × molar mass
Mass = 0.063 mol × 159.7 g/mol
Mass = 10.1 g
A. decompisition
B. double replacement
C. combustion ( i think)
D. this one is also another form of decomposition, I think.
E. Once again, another form of double replacement.
I hope these helped, and, if so, please mark as brainliest :P
Good luck!
