Answer:
1,000 - 2,000
Explanation:
Just look at the bar graph. The bar ends at about 1,500 which is between 1,000 - 2,000. That is the only valid answer for this problem.
Concentration - 3
Phase - 1
Catalyst - 4
Surface area - 2
a
D. Infrared Radiation
I hope this helps.
Calcium can be ignited and will when burning react with both oxygen and nitrogen forming calcium oxide, CaO, and calcium nitride, Ca3N2.
