Answer:
A
Explanation:
A compound machine is a combination of two or more simple machines.
Answer:
Covalent bobd
Explanation:
Chamical bonding between non metals is covalent.
Answer: 2
Bc when you subtract 12 from 14 you get 2
Hello!
The reaction Heat or ΔH corresponds to the interval A
Reaction Heat is defined as the net change in enthalpy in a chemical reaction. To measure Reaction Heat, the intermediate path doesn't matter, but only the initial and final states.
So, the interval that measures the difference between the initial and final states in this reaction is the interval A, and calculating the enthalpy difference between those two points will give the ΔH of reaction.
Have a nice day!
Appropriate method for separating a mixture of iron and aluminum is definitely <span>A. using a magnet. If we use the second method we will </span>vaporize either aluminum or iron.
If we used the third method it <span> would change liquid into a gas which is strange according to the task.
</span>And observing (even for a long time) won't help separating.
