Answer: These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products.
Explanation:
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Hey there!:
Balanced Equation , for the reaction:
3 H₂SO₄(aq) + 2 Fe(s) → Fe₂(SO₄)₃(aq) + 3 H₂(g)
2 moles Fe ---------------------------------- 3 moles H₂
0.250 moles Fe ---------------------------- ( moles H₂ ) ??
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moles H₂ = 0.250 × 3 / 2
moles H₂ = 0.75 / 2
moles = 0.375 moles of H₂
Hope this helps!
The reactivity of metals increases as you move left in a period and as you move down in a group, so Marie needs to know the period and group of the element inside each box. Boxes that show locations in groups 1 or 2 or in period 8 contain the most reactive elements.
Answer:
Scientist use GPS satellites and movement tracers.
Explanation:
Ice cream will have a physical change because you can re freeze it and it will still be ice cream
