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Assoli18 [71]
2 years ago
13

Energy produced by the sun and stars comes from

Chemistry
1 answer:
Delicious77 [7]2 years ago
4 0

Answer:

It's heat energy

Explanation:

which is transmitted through radiation.  The sun warms us.

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How should this combustion reaction be balanced?
nikdorinn [45]

Answer:

Answer is C. C5H8 + 7O2 -> 5CO2 + 4H2O

5 0
3 years ago
6. a) Why is isocyanic acid prepared ""in situ"" in the Dulcin experiment? [2 pts] b) Draw a plausible Lewis structure for isocy
ycow [4]

Answer:

As it gets hydrolyzed easily.

Explanation:

The isocyanic acid  may get polymerizes  easily into  cyanuric acid and  a polymer cyamelide

Also, even at 0 °C temperature it may react with mositure and gets hydrolyzed into ammonia an carbon dioxide. Thus we generally prepare it in situ. Even after synthesis it is stroed at dry ice or liquid nitrogen at very low temperature.

The lewis structure is shown in the figure.

6 0
3 years ago
Is powdered sports drink ionic or covalent ? 10pts !
Dahasolnce [82]
<h3><u>Answer;</u></h3>

Ionic

Powdered sports drink is<u> ionic </u>

<h3><u>Explanation;</u></h3>
  • <em><u>Sports drinks are beverages whose purpose is to help athletes replace water, electrolytes, and energy before and after training or competition.</u></em>
  • Sport drinks contain may contain water, fuel and electrolytes which are used to regulate fluid balances in the body. Electrolytes are molecules that have electrical charge called ions, such as calcium , potassium, sodium and chloride ions.
  • <em><u>Ionic compounds are made up of ions, that is positively charged ions and negatively charged ions which are joined together by ionic bonds. Electrolyte in sport drinks forms ionic bonds.</u></em>
7 0
3 years ago
What is 1.23 x 10^-3 in standard notation
Andrew [12]

Answer:

=0.00123

Explanation:

Look at the attachments below

Hope this helps (:

6 0
3 years ago
Read 2 more answers
If the pressure is 0.9 kPa. and the volume is 4.0L, then the pressure changes to 0.20 kPa. What is the new volume?
ch4aika [34]

Answer:

18 L

Explanation:

boyles law

P1V1 = P2V2

V2 = P1V1/P2

V2 = (.9 * 4)/.2

V2 = 18

4 0
2 years ago
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