We know that density = mass /volume
so
mass=volume*density
volume=mass/density
so c is wrong
Answer:
Greater
Explanation:
The longer the handle, the greater the mechanical advantage and the greater the increase in force that is applied to the bolt.
Mechanical advantage is the rate at which force is multiplied.
- It simply compares the output force to the input force.
- M.A is the force increasing tendency of a tool.
- The longer the handle, the more the mechanical advantage and the lesser the applied force.
Answer:
The second answer, because when something saturated, it has the maximum possible number of hydrogen atoms.
Enthalpy is a state function
Explanation:
The Hess's law allows us to determine the enthalpy change of a reaction because enthalpy is a state function. It does not depend on the individual path take in going from reactants to products in the reaction.
- Enthalpy changes are the heat changes accompanying physical and chemical changes.
- It is the difference between the heat content of product in the final state and the reactants.
- Enthalpy changes for some reactions are not easily measurable experimentally.
- To calculate such heat changes, we apply the Hess's law of heat summation.
- The law states that "the heat change of a reaction is the same whether it occurs in a step or several steps".
- The Hess's law is simply based on the first law of thermodynamics by which we know that energy is conserved in every system.
learn more:
Hess's law brainly.com/question/11293201
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Answer:
the types of chemical reaction are combination, decomposition, single replacement, double replacement, combustion
