The cell cycle is important because it helps cells to sustain their lives
Answer:
It can enhance survival because the animals for example birds are migrating to those places for high or increasing resources
Explanation:
Answer:
The answer is B) No.
Explanation:
The equation balanced is:
2 FeCl₃ + 3 MgO → Fe₂O₃ + 3 MgCl₂
Equation balancing can be done by "trial and error" or by algebraic method.
In this way the equation is balanced on both sides having:
2 atoms of Fe, 6 of Cl, 3 of Mg and 3 of 0.
Answer: Sodium chloride
Explanation:
Ocean water contains a number of substances. When a substance which has ionic bonds is dissolved in water it takes the form of ions.
The most common ions in ocean water are sodium and chloride. These are the ions formed when common salt, sodium chloride (NaCl) is dissolved in water.
Sodium chloride accounts for about 3% of ocean water by mass.
Molecular mass of nitrogen, N2 = 2*14 = 28
molecular mass of hydrogen, H2=2*1 = 2
Molecules of both elements contain 2 atoms, so the ratio of molecules is the same as the ratio of atoms.
From the molecular masses above,
ratio of number of molecules = ratio of molecular masses, therefore
7g N2 : x g H2 = 28:2
cross multiply:
x=7*2/28=0.5 g of Hydrogen has the same number of atoms as 7 g of nitrogen (at room temperatures)
