For atoms use a periodic table. The atomic number is the amount of atoms. For molecules and ions look up things revolved around the avogrados principle
Answer:
Explanation:
Generally, the factors that affect rate of chemical reactions include
- pressure (affects non-solid reactants)
- surface area of solid reactants
- concentration of reactants
- presence/absence of catalysts
From the above, it shows that some of these factors do not need to be considered when discussing rate of reaction of gases of equal moles as we have in the question.
The factors that will determine the difference in the reaction rates of the gases in the two syringes will just be temperature of the syringes (if the temperature of the syringes are not the same) and the pressure applied on the gases in the syringes (if the pressure applied to the syringes are not the same). If catalyst is introduced to one and not to the other, that will be increase the rate of the reaction in the one the catalyst is introduced and hence the reaction rate varies.
An increase in temperature and/or pressure will lead to an increase in the rate of reaction.
Answer:
yes because the model showing you that it is the map
Answer:
Option B
Explanation:
Changing of a substance from liquid to a gas, is known as vaporization. During vaporization a substance absorbs thermal energy. The forces between particle is very weak and hence they gain potential energy. Thus, while changing from liquid to gas, energy gets absorbed to increase the potential energy. This energy is known as latent heat of vaporization.
Hence, option B is correct
Answer:
sorry i dont understand
Explanation:
i am russian but i do school in english so i dont know what some of these elements are exept for water