Use PV =nRT. Rearrange it to n = PV/RT.
P = 202.6 kPa
V = 4.0L
R = 8.314 kPa*L/mol*K
T = 127 °C + 273 = 400 K
Plug it in and solve. I got 0.24 moles of H2.
Answer:
2 mol of CO₂
Solution:
The reaction is as follow,
H₂CO + O₂ → CO₂ + H₂O
According to this equation,
1 mole of H₂CO produces = 1 mole of CO₂
So,
2 moles of H₂CO will produce = X moles of CO₂
Solving for X,
X = (2 mol × 1 mol) ÷ 1 mol
X = 2 mol of CO₂
Producers would not have enough nutrients .
7.A physical change occurs when a material changes shape or size but the composition of the material does not change.
8.Chemical properties can be observed only when the substances in a sample of matter are changing into different substances.
9. Materials can be classified as solids, liquids, or gases based whether their shapes and volume are definite or variable.
10. The Kinetic theory of matter states that all particles of matter are in constant motion.
