Answer:
Number of moles of chlorine = 3.38 mol
Explanation:
Given data:
Mass of chlorine = 120 g
Moles of chlorine = ?
Solution:
Formula:
Number of moles = mass/molar mass
Molar mass of chlorine = 35.5 g/mol
Now we will put the values in formula.
Number of moles = 120 g/ 35.5 g/mol
Number of moles = 3.38 mol
1. Definition Of Isotope:
Two or more forms of the same element contain equal amounts of protons but different amounts of neutrons.
2. What Does The Number Next To Isotopes Signify?
Atomic mass is the number next to the isotope.
3. How Can You Tell Isotopes Apart?
To tell the difference, isotopes will have different atomic mass than other atoms that make the same element.
<em>Hope this helps!</em>
<em> ~Hocus Pocus</em>
Answer:
FeF3
Explanation:
You have to break this problems down and know the naming rules.
- symbol for iron - Fe
- symbol for fluoride - F
- Add together - FeF
- Now, add the 3
- FeF3
- Hope that helps! Please let me know if you need further explanation.
Answer:
Increasing Surface Area
Explanation:
A greater surface area (meaning more, smaller particles) allows for more opportunity for particles to collide. On the other hand, decreasing temperature and removing a catalyst would only decrease the number of collisions, and the clumping option doesn't make much sense. Hope this helps!
