Answer:
A !!
it a mix where everything is combined together
Photosynthesis converts chemical energy as the type of energy
Photosynthesis is a redox reaction. This means that H2O is oxidized during the light reactions and CO2 is reduced during the Calvin cycle.
Answer:
The gravitational pull of the moon is lower than the earth's, because it is smaller
Explanation:
According to the universal law of gravity, the acceleration of gravity on a planet is directly proportional to the mass of the planet and inversely proportional to its radius.
If moon is one-sixth the size of the earth, this implies that its radius is lower than the radius of earth. According to the law , this implies that the acceleration of gravity on moon will be lower than on earth.
Answer:
Explanation:
Molecular weight is the mass of substance containing 1 Avogadro's Number of particles which is 6.023 x 10²³ particles. Such is calculated by adding the formula weights of all elements in the compound of interest. For Pb(NO₃)₂ the molecular weight is 1Pb + 2N + 6O = 1(207g/mol) + 2(14g/mol) + 6(16g/mol) = 331g/mol.
For the problem, it is asking for the number of moles Pb(NO₃)₂ in the given mass of 170g of the substance. Such is calculated by dividing the given mass (170g) by molecular weight (331g/mol).
moles of Pb(NO₃)₂ in 170g = given mass (170g)/molecular weight (331g/mol) = 0.51 mole of Pb(NO₃)₂.