Answer:
I had to do some research, because I not familiar with Hess's Law.
Hope this helps :)
Stating Hess's Law
Hess's Law is the most important law in this part of chemistry. Most calculations follow from it. It says "The enthalpy change accompanying a chemical change is independent of the route by which the chemical change occurs."
Explaining Hess's Law
Hess's Law is saying that if you convert reactants A into products B, the overall enthalpy change will be exactly the same whether you do it in one step or two steps or however many steps.
Answer:
Digestion is the breaking down of food into simpler substances.Ingestion is the process of taking the food in.Absorption is the process of absorbing the nutrients and water into the bloodstream.Assimilation is the process of utilization of absorbed nutrients by the cells.
hope it helps you
please mark it as brainliest
Answer:
This animal produces offspring that are genetically different from itself.
Explanation:
Answer: Option (D) is the correct answer.
Explanation:
According to Kinetic theory of gases, molecules of a gas move in rapid and random motion. That is, particles are constantly in linear motion.
When these molecules colloid with each other then no energy is gained or lost by them. Also, these molecules occupy negligible amount of volume as compared to the volume of the container in which they are placed.
Moreover, as there is no energy loss taking place so, these molecules of gas undergo perfect elastic motion.
Therefore, we can conclude that all of the above given options are true according to the kinetic theory of gases.
Answer:
1.07×10²¹ molecules are needed to sound the alarm
Explanation:
Let's convert the mass of CO to moles, to determine the amount of molecules.
0.05 g . 1 mol / 28 g = 1.78×10⁻³ moles
Now we can determine the number of molecules with the NA
1 mol has 6.02×10²³ molecules
1.78×10⁻³ moles may have (1.78×10⁻³ . 6.02×10²³) / 1 = 1.07×10²¹ molecules