Answer:
1.
meteorology A line drawn on a map or chart connecting places of equal or constant pressure.
2.
nuclear physics Either of two nuclides of different elements having the same mass number.
3.
thermodynamics A set of points or conditions at constant pressure.
First we must write a balanced chemical equation for this reaction
The mole ratio for the reaction between 
and 
is 1:2. This means 1 moles of will neutralize 2 moles . Now we find the moles of each reactant based on the mass and molar mass.
The was enough to neutralize the acid because 18.87:39.67 is the same as 1:2 mol ratio.
It has more density when it sinks because the water pushes away thats why people float they are less dense
Answer:
This is one of the factors that affects chemical reactions
Temperature:This is because when the temperature is raised energy in form of heat is supplied to the reacting particles and so the rate of reaction is increased.
