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Igoryamba
3 years ago
5

PLEASE HELP WILL GIVE BRAINLIEST

Chemistry
2 answers:
OLEGan [10]3 years ago
6 0

Answer:

c option is correct ...

katrin2010 [14]3 years ago
6 0

Answer:

I believe it's either A or C

Explanation:

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When do you have to wear safety glasses while in lab?
never [62]
At all times when a lab is being operated no matter what the circumstances
6 0
3 years ago
Complete the following reaction.<br> 14N+ on →?C+1H<br> 18C<br> 14<br> 1 C<br> 18C
CaHeK987 [17]

Answer: The complete reaction is as follows.

 ^{14}_{7}N + ^{1}_{0}n \rightarrow ^{14}_{6}C + ^{1}_{1}H

Explanation:

When nucleus of two or more atoms are bombarded together then it leads to the formation of new particles with new identity. This type of reaction are called nuclear reaction.

For example, ^{14}_{7}N + ^{1}_{0}n \rightarrow ?C + ^{1}_{1}H

Here, nitrogen atom when bombarded with a neutron then it is forming hydrogen and a carbon atom.

As total atomic mass on reactant side is (14 + 1) = 15

So, the atomic mass of carbon formed on product side is (15 - 1) = 14.

The number of protons holded by this carbon atom is (7 - 1) = 6.

Therefore, we can conclude that the complete reaction is as follows.

 ^{14}_{7}N + ^{1}_{0}n \rightarrow ^{14}_{6}C + ^{1}_{1}H

6 0
3 years ago
Acetylene (C2H2) gas is often used in welding torches because of the very high heat produced when it reacts with oxygen (O2) gas
babymother [125]

Answer:

0.05 mol

Explanation:

The balanced equation for the reaction that takes place is:

  • 2C₂H₂ (g) + 5O₂ (g) → 4CO₂ (g) + 2H₂O (g)

Now we<u> convert 0.10 moles of carbon dioxide (CO₂) into moles of acetylene (C₂H₂)</u>, using the <em>stoichiometric coefficients of the balanced reaction</em>:

  • 0.10 mol CO₂ * \frac{2molC_2H_2}{4molCO_2} = 0.05 mol C₂H₂
7 0
3 years ago
What is the electronegativity in the determination of the ionic or covalent character of a bond
Paladinen [302]

Polar Covalent is the name used to describe bonds that have both ionic and covalent character because the electrons are shared unequally. The Pauling Scale is used to assign electronegativity to atoms. It ranges from to 4.00 (fluorine).

8 0
4 years ago
The distance from the Moon to Earth is 5.46 * 108 km. How long does it take a laser need to travel between the moon and earth?
Gennadij [26K]

Answer:

B. 1.82(10³) seconds (1820 seconds)

Explanation:

Speed of Light: 3.00(10⁸) m/s or 3.00(10⁵) km/s

We know the distance from the Moon to Earth as 5.46(10⁸) km

We simply divide the distance by the speed of light:

\frac{5.46(10^8)}{3.00(10^5)}

We should get 1820 seconds or B. 1.82(10³) as our answer.

8 0
4 years ago
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