Answer:
12
my advice is split the equation into 2 and write on each side how many atoms of each element are there and it will be easier to balance.
The answer is:
C) Sound is a mechanical wave and needs a medium to travel through while light is an electromagnetic wave.
Answer:
CnH2n+2
Explanation:
an alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon–carbon bonds are single.
Chemical Change can produce a new substance. The effects of chemical change differs from the effects of physical change because physical change is simple a change within a substance through natural procedures like freezing and melting.
Answer:
0.205M
Explanation:
Molarity is an unit of concentration used in chemistry defined as the ratio between moles of solute (In this case, LiF) and liters of solution.
To solve this question, we must find the moles of LiF and the liters of the solution:
<em>Moles LiF -Molar mass: 25.939g/mol-:</em>
2.39g * (1mol / 25.939g) = 0.0921moles
<em>Liters solution:</em>
450mL * (1L / 1000mL) = 0.450L
Molarity is:
0.0921 moles / 0.450L =
<h3>0.205M</h3>