Answers:
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1) [D]: " CO₂ " .
<u>Note:</u><u> </u> This is the only answer choice given that is composed of: "at least two different elements" .
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2) [D]: "carbon and hydrogen" {"C" and "H" .} .
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Answer:
It is Na2O because it doesn't show any acidic properties.
A - Endothermic. This is because it absorbs heat rather than releases it.
B - Exothermic. It's releasing heat which in turn makes the beaker hot.
C - Endothermic. The Ammonium Chloride is absorbing the heat away from the beaker.
D - Exothermic. To produce nuclear energy, it needs to release heat.
E - Endothermic. The hydrogen and oxygen atoms are absorbing the heat given off from the electric current.
F - Exothermic. It is producing heat or releasing heat.
Exothermic is the losing, release, or production of heat. Endothermic is the exact opposite; it is the storing of heat.
Hope this helps!
Answer:
Option C is correct: methylpropane
Explanation:
Name of the given Structure = ?
Structure given: Shown in attachment
Naming organic compound
- Select the longest chain: so it contain three carbon
- As the compound is saturated that contain single bond in-between carbon atom so it is known as alkane.
- For three carbon atoms it is a propane
- Look for the functional group: so, there is one methyl (CH₃) group attached at carbon number 2.
- So the name include methyl too.
Now the final name of this compound is methylpropane
So, option C is correct.