Answer:
how many liters of 0.150 m hcl would be required to react completely with 8.00 grams of magnesium hydroxide
Explanation:
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Materials with ionic bonds tend to be more easily scratched.
The force reduces
Explanation:
According to Coulomb's law, the force between the charges will reduce if the separation between the charges increases.
Coulomb's law states that "the force between two charges is a directly proportional to the product of the magnitude of the charges and inversely proportional to the square of their separation.".
F = 
where F is the electric field force
K is the constant of the field
is charge 1
is charge 2
r is the separation
We see that the separation is inversely proportional to the force between the charges. The larger the separation, the weaker or smaller the force.
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Stoichiometry comes down to the mole ratios, as given by the balanced chemical equation. Your balanced equation says that 1 mole of sugar will react with 12 moles of oxygen to make 12 moles of CO2 and 11 moles of water. If 12 moles of oxygen reacts with 1 mole sugar, then how many moles of oxygen will react with 2 moles of sugar? Despite the fact that sugar can be used for model rocket fuel, this ain't rocket science.
As for the other two, you still have to work with the mole ratios as given by the balanced equation. But you have to covert the mass of NH3 to moles first, then figure out the moles of ammonium chloride and then convert it back to grams. This is best done with a couple of conversion factors.
When two substances at different tempeartures como into contact, the substance that is at higher temperature will transfer energy, in the form of heat, to the substance that is at lower temperature, until their temperatures get equal.
In this case, if the two substances are isolated of the rest of the universe, the law of conservation of energy states tha the heat released by the substance initially at higher temperature is the same amount of heat gained by the substance originally at lower temperature.
