Electrons can be some of the fastest travelling sub atomic particles because of their ability to gain energy. Electrons gain or lose energy in order to move up or down a level while orbiting the nucleus. Energy is usually represented as E=mc2 and can be measured in Joules which is kgm2s-2. This shows that increasing the energy of an atom can increase its speed.
i think its theory but im not to sure
Answer:
Explanation:
Iron(III) oxide gets mixed with elemental carbon and heated to make elemental iron and carbon dioxide.
2Fe₂O₃ + 3C = 4 Fe + 3 CO₂
2 x 160 3 x 12 4 x 56
320 gram of iron ( iii ) oxide requires 36 g of carbon for reduction
1 kg of iron will require 36 / 320 g of carbon
carbon required = 36 / 320 g
= .1125 g
= .113 g rounding off to 3 significant fig .
b )
320 gram of iron ( iii ) oxide produces 224 g of iron after reduction
1 g of iron will produce 224 / 320 g of iron
iron produced = 224 / 320 g
= 0.700 g .
1 mole ----------------- 6.02 x 10²³ molecules
10.0 moles ----------- ( molecules C2H6O)
molecules = 10.0 x ( 6.02 x 10²³ ) / 1
molecules = 6.02 x 10²⁴ / 1
= <span> 6.02 x 10²⁴ molecules of C2H6O
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Answer:
A. Warning
Explanation:
Out of all said choices, the best choice would be warning since it would fit the sentence the most.
"A Warning notifies you that danger is present." compared to:
"A Hazard notifies you that danger is present."
"A Safety notifies you that danger is present."
"A Danger notifies you that danger is present."