Answer:
Why do we all not know the answer to this on the practical
Explanation:
The Calcium atom has 2 valence electrons but a Calcium ion will have no electrons because it is a cation ion. Meaning that there are more protons than electrons. Also, the normal calcium symbol is Ca but the calcium ion is Ca²⁺
I hope this wasn't too late
Answer:
0.095 moles of O₂ are left over.
Explanation:
First of all, state the balanced reaction:
2NO + O₂ → 2NO₂
We determine moles of each reactant:
20.2 g . 1mol / 30g = 0.673 moles of NO
13.8g . 1mol / 32g = 0.431 moles of oxygen
Oxygen is the excess reactant. Let's see.
For 2 moles of NO I need 1 mol of O₂
Then, for 0.673 moles of NO I may use (0.673 .1) /2 = 0.336 moles
I have 0.431 moles of O₂ and I only need 0.336 mol. According to reaction, stoichiometry is 2:1.
In conclussion, the moles of excess reactant that will be left over:
0.431 - 0.336 = 0.095 moles
A chemist has discovered<span> a </span>drug<span> that </span>blocks phosphoglucoisomerase<span>, an </span>enzyme<span> that </span>catalyzes<span> the</span>second reaction<span> in </span>glycolysis<span>. </span>He wants<span> to </span>use<span> the </span>drug<span> to </span>treat people<span> with </span>bacterial infections.However<span>, </span>he can't do<span> this </span>because _____<span>. human cells also perform </span>glycolysis<span>; the </span>drug<span> might also poison them. Most NADH ...</span>