Question 17:
False; cutting hair would change what it looks like but, braiding it keeps it the same substance it is.
Question 18 :
My best guess would either be A or D. I would lean more towards D because if there are different mixtures then it depends on what you are mixing.
Hope it helps in some way. <3
Answer:
<h2>1 atm </h2>
Explanation:
The new pressure can be found by using the formula for Boyle's law which is

Since we're finding the new pressure

We have

We have the final answer as
<h3>1 atm </h3>
Hope this helps you
Elements that have the greatest amount of Electrons in their Valance shell (valance electrons). Elements like Hydrogen are very reactive because they only have 1 valance electron.
The balanced equation for the neutralization reactions is as below.
<h3>Balancing chemical reaction equations</h3>
In order for chemical equations to be balanced, the number of atoms of each element before and after the reaction must be equal.
Thus:
More on balancing chemical equations can be found here: brainly.com/question/15052184
#SPJ1
This question is asking for an element with 5 valence electrons. Just go to the row it is in (excluding transition metals) and count over.
The answer would be c. P