Explanation:
1. Newton's universal law of gravitation states that every particle in the universe attracts every other particle with a force along a line joining them. The force is directly proportional to the product of their masses and inversely proportional to the square of the distance between them.
2.Bottom because the direction of the gravitational force is always downward toward the center of the Earth ... where the winds are stronger; the mixing tends to reduce the air flow at the higher altitude. (I think its bottom).
Answer:
0.005404 M
Explanation:
Since you added an excess of sodium carbonate you warrantied that all the 
in the sample reacted with it. So we can say that the insoluble lead (II) carbonate 
contains all the ions in the original sample.
The moles of are:
One mol of is required to form one mol of . So, the stoichiometric relationship between them is 1:1.
Knowing this, 0.00054 is also the number of moles of in the original sample.
So, the concentration of in the original sample is:
Answer:
You should not use an open flame to heat the solvent and the solvent should be heat in a stoppered flask to vapour away from the open flame
Explanation:
Answer:
They are protection from the cell!
Explanation:
They move liquid around the cells and have the same internal structure as each other. They are also found in most microorganisms. Hope this helps :)
Answer:
A metallic bond will be bonds of just metal atoms sharing their valence electrons
Explanation:
