Answer:
<em> </em><em>T</em><em>he </em><em>main </em><em>universal </em><em>indicator</em><em> </em><em>is </em><em>in </em><em>the </em><em>form </em><em>of </em><em>a </em><em>solution</em><em> </em><em>and </em><em>are </em><em>thymol </em><em>blue </em><em>,</em><em> </em><em>methyl </em><em>red </em><em>,</em><em> </em><em>bromothymol </em><em>blue </em><em>and </em><em>phenolphthalein </em><em>this </em><em>mixture </em><em>is </em><em>important </em><em>because</em><em> </em><em>each </em><em>component </em><em>loses </em><em>or </em><em>gains </em><em>protons </em><em>depending</em><em> </em><em>upon </em><em>the </em><em>acidity </em><em>of </em><em>the </em><em>solution</em><em> </em><em>being</em><em> </em><em>tested </em><em>.</em>
<em><u>maybe </u></em><em><u>this </u></em><em><u>m</u></em><em><u>i</u></em><em><u>ghr </u></em><em><u>help</u></em><em><u> </u></em><em><u>u</u></em>
<span>how many molesof oxygen are produced when 8 mols of Al are produced? it is 6</span>
I think the answer most be d
Answer:
3 moles of calcium oxide are formed
Explanation:
Based on the reaction of Calcium Ca, with oxygen, O₂, to produce calcium oxide, CaO is:
2Ca + O₂ → 2CaO
<em>where 2 moles of calcium produce 2 moles of Calcium oxide.</em>
That means, if 3 moles of Ca react in presence of oxygen:
3 moles of calcium oxide are formed
Answer: C.It provides an alternative energy pathway for the reaction to proceed.
Explanation:
Activation energy is the extra energy that must be supplied to reactants in order to cross the energy barrier and thus convert to products.
A catalyst is a substance which increases the rate of a reaction by taking the reaction through a different path which involves lower activation energy and thus more molecules can cross the energy barrier and more molecules convert to products.
Thus catalyst speeds up the reaction and does not increase the total amount of product formed.
The catalyst itself does not take part in the chemical reaction and is regenerated as such at the end.
