II 0 1
Three examples of home insulation are shown in Figure 1.
Figure 1
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cavity wall insulation
loft insulation
hot water tank jacket
0 1 .4
Suggest one reason why people are now more aware of the importance of good insulation in the home.
Your ​

1. 1 mole of anything contains 6.022x10^23 pieces  

d  

2. a  

3. c, number  

5. 1.24x10^24atoms / 6.022x10^23atoms/mole = 2moles h2 atoms  

6. fe2br3 mass = 2moles x mass fe + 3 moles x mass br  

molar mass = grams / number of moles = g/mole  

to find moles = g / molar mass  

to find mass = g = molar mass / moles

answer; i believe that the correct answer is (a) potassium(k)

b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.