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Maru [420]
3 years ago
5

Question The compounds 2-butanol and 2-butene both contain (1) double bonds, only (3) carbon atoms (2) single bonds, only (4) ox

ygen atoms Answer · 6 votes The answer is (3) carbon atoms. For 2-butanol, it contains single bonds only and with C, O, ... Mor
Chemistry
1 answer:
Monica [59]3 years ago
8 0

Answer:

carbon atoms

Explanation:

Let us look at the molecular formulas of each compound;

Butanol= C4H10O

Butene= C4H8

We can clearly see that the both compounds contains four carbon atoms each. Hence the correct answer is that the both compounds contain the same number of carbon atoms

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2. STEM The mass of an atom of helium is about 4.002 atomic units.
Anit [1.1K]

Answer:

The approximate mass of beryllium is 9.0045 u.

Explanation:

Given data:

mass of helium= 4.002 u

mass of beryllium which is 2.25 times of mass of helium= ?

Solution:

we will multiply the mass of helium with 2.25 times,

4.002 u × 2.25 = 9.0045 u

so the mass of beryllium atom would be 9.0045 u.

6 0
3 years ago
A 10 gram iron nail absorbed 125J of heat. What was the final temperature of the nail if the original temperature was 25°C?
valentina_108 [34]

Answer:

52.1 degrees C

Explanation:

We need to use the equation: q = mCΔT, where m is the mass in grams, C is the specific heat capacity, and ΔT is the change in temperature.

Here, m = 10 g and q = 125 J. The heat capacity of iron is about 0.461 J/(g * C). And, our initial temperature is 25. So:

125 J = (10 g) * (0.461 J/(g * C)) * (T_f - 25)

Solving for T_f (final temp), we get: 52.1 degrees C

Hope this helps!

7 0
3 years ago
An aerosol can with a temperature of 292 K and a pressure of 1.25 atm was left outside in the sun on a hot summer day. The press
garik1379 [7]

Answer:

310.69K

Explanation:

Given parameters:

Initial temperature T₁ = 292K

Initial pressure P₁ = 1.25atm

Final pressure P₂ = 1.33atm

Unknown:

Final temperature T₂ = ?

Solution

To find the unkown, we need to apply the combined gas law. From the combined gas law, it can be deduced that at constant volume, the pressure of a give mass or mole of gas varies directly with the absolute temperature.

Since the same aerosol can is heated, the volume is constant.

          \frac{P_{1} }{T_{1} } =  \frac{P_{2} }{T_{2} }

Now, we have to make T₂ the subject of the formula:

      T₂ =  \frac{P_{2}  x T_{1}  }{P_{1} }

       T₂ =  \frac{1.33  x 292  }{1.25 } =  310.69K

6 0
3 years ago
I need help with number 4!!! I’ll give brainliest
adell [148]

Answer:

the north pole to the south pole

7 0
3 years ago
Read 2 more answers
2. In 1804, almost a century before the nucleus was discovered, the English scientist John Dalton provided evidence for the exis
belka [17]

Answer:

The Electron found by J.J Thompson

Explanation:

Hope this helps:)

3 0
2 years ago
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