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olya-2409 [2.1K]
3 years ago
14

6. Which compound is a saturated hydrocarbon?

Chemistry
1 answer:
IrinaVladis [17]3 years ago
4 0

Answer:

2. CH3CH3.

Explanation:

Hydrocarbons contain only carbon and hydrogen so it's not 3 or 4.

CH2CH2  is unsaturated - it contains a double bond, 2HC=CH2.

CH3CH3 is a saturated alkane   (Ethane).

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A sample of calcium oxide (CaO) has a mass of 2.80 g. The molar mass of CaO is 56.08 g/mol. How many moles of CaO does this samp
Molodets [167]

Answer is "0.05 mol".

<em>Explanation;</em>

We can do calculation by using a simple formula as

n = m/M

Where, n is the number of moles of the substance (mol), m is the mass of the substance (g) and M is the molar mass of the substance (g/mol).

Here,

n = ?

m = 2.80 g

M = 56.08 g/mol

By substitution,

n = 2.80 g /56.08 g/mol

n = 0.0499 mol ≈ 0.05 mol

4 0
3 years ago
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telo118 [61]

Answer:

The correct option is C.

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Explanation:

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-OH group: Base have OH groups. So it is not correct option so it not correct for low pH i.e. acid

turns litmus paper blue: Base turn red litmus into blue, so it not correct for low pH i.e. acid

feels slippery: Bases are mostly slippery like soap

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8 0
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An object is moving with a velocity in the positive direction. If
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Answer:

Please elaborate. Maybe if you had actual answer choices

Explanation:

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