Answer:
if chemistry hadn't been put up to practical use, we wouldn't truly understand the reason why humans are humans like makes up humans (including other understandings of biology, etc) and we wouldn't be able to have the advancements we have today (vaccines, etc).
Explanation:
That depends. there are 2 possible answers.
H
C - C = C - H gives a different answer on the right than on the left.
One the left side, the second Carbon is attached to a double bond and has but one hydrogen attached to it.
The Carbon on the right of the double bond has 2
H
C- C = C - H
H
I'm not sure what you should put. It's one of those things that I would repeat my argument and submit it.
12.1% is the mass percent of hydrogen in hexanal
Answer:
The essence including its particular subject is outlined in the following portion mostly on clarification.
Explanation:
- The energy throughout the campfire comes from either the wood's latent chemical energy until it has been burned to steam up and launch up across the campfire. The electricity generation for something like a campfire seems to be in the context including its potential chemical energy which is contained throughout the firewood used only to inflame the situation.
- The energy output seems to be in the different types of heat energy radiating across the campfire, laser light generated off by the blaze, and perhaps a little number of electrical waves, registered throughout the firewood cracking whilst they combust throughout the blaze.
and,
chemical energy ⇒ heat energy + light energy + sound energy
Answer:
Zn(OH)₂
<em>Explanation:
</em>
Zn is above Fe in the activity series, so it is more readily oxidized:
Zn(s) ⟶ Zn²⁺(aq) + 2e⁻
The zinc ions go into solution.
The electrons travel from the Zn to the surface of the iron nail, where they reduce the water to hydrogen and hydroxide ions.
2H₂O(ℓ) + 2e⁻ ⟶ H₂(g) + 2OH⁻(aq)
Neither the zinc ions nor the hydroxide ions can move far through the gel.
Their concentration builds up around the hail. The ions find each other and form a precipitate.
Zn²⁺(aq) + 2OH⁻(aq) ⟶ Zn(OH)₂(s)