Answer:
Explanation:
Mass and weight are quite different terms .
Weight is defined as the amount of force exerted on the earth due to our mass and gravity of acceleration.
Given that the mass is 90 kg and gravity of acceleration of earth is 9.82 m/s^2.
So weight will be
The answer is 0.8830 mol C3H8.
Here's how the answer was generated:
We do know that all the choices are in moles, in that case, we divide the 38.95 g of propane (C3H8) by the molar mass which is:
C = 12.01
H = 1.01
C3H8 = 3 * 12.01 + 8 * 1.01 = 44.11
Divide 38.95 g by 44.11 g/mol and the answer will be 0.8830 mol C3H8.
It's A; decomposition reactions involve one reactant becoming 2 or more products.
Answer:
Precise but not accurate
Explanation:
Precision and accuracy are two very different terms in science, although they may be used interchangeably in everyday life. Precision refers to how close a set of values are to one another, and in this case, because the targets are so close to one another, they are very precise. However, they are not so accurate because they are all far from the bull's eye, the target.
Cheers.
Answer:
E = hv
Explanation:
Energy = planck constant × frequency