Explanation:
He needs 2.3 dkg
dkg is a unit of mass and represents dekagrams.
The relationship between dkg and g is given as;
1 dkg = 10g
This means he needs 2.3 * 10 = 23 g of graphite.
Since he already has 460g of graphite, he doesn't need any additional graphite.
1) 1
2)1600
3)0.109
4)0.250
5)14000
6)1000
7)4.8
8)0.027
9)0.198
10)0.075
11)0.50
12)5000
13)1.6
14)65000
15)25
16)0.355
17)0.08
18)63
19)560
20)260
21)0.0565
22)0.0275
23)9.23
24)2500
It was fun!
What are the options? It says select all that apply...
They have seven electrons in their valence shell, so halogens are very reactive.
Hope this helps! :)
North Pole ,land is the answer
