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FrozenT [24]
3 years ago
13

Which of the statements is correct?

Chemistry
2 answers:
Step2247 [10]3 years ago
8 0

Answer:

<u>A. Magnet has a north pole and south pole.</u>

Explanation:

- A magnet has a north and south pole

- Magnets attract paper clips due to the metals present

- Magnetic fields are not visible

- North pole and south pole attract each other

Only the first statement is correct, the answer is (A).

mr Goodwill [35]3 years ago
7 0
A. Magnet has a north pole and south pole
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Read the information about the halogen family.
Elodia [21]

Answer:

See explanation

Explanation:

Chlorine is a member of the halogen family known as a toxic yellowish green gas. Inhalation of chlorine for a prolonged period of time leads to  pulmonary edema. If a person comes in contact with compressed liquid chlorine the person may experience frostbite of the skin and eyes.

However chlorine is very useful in water disinfection and is preferred in water treatment because it provides residual disinfection of the treated water.

Chlorine gas may be dissolved in NaOH to form oxochlorate I which is used as a bleach in cleaning.

7 0
3 years ago
Express this number in scientific notation 50000​
Kazeer [188]

Answer:

We write 50,000 in scientific notation,

it is written as 5 x 10⁴.

Hope it helps.

6 0
3 years ago
Read 2 more answers
If the average velocity of an object is not the same for all time intervals, then the object moves at a(n)
Elina [12.6K]

Answer:

A

Explanation:

because the object's velocity had no acceleration between time intervals

3 0
4 years ago
If a non-cyclic alkane shows a molecular ion peak at m/z 3.80 × 102, what is the chemical formula?
soldier1979 [14.2K]
The General Equation of Alkane is as follow,

                                              CnH₂n₊₂          ------- (1)
As m/z = 380
So,
                                              CnH₂n₊₂  =  380
Or,
                                              12n+ 1₂n₊₂  =  380

                                              12n+ ₂n ₊ ₂  =  380

                                              14n ₊ ₂  =  380

                                                   14n  =  380 - 2

                                                   14n  =  378

                                                       n  =  378 / 14

                                                       n  =  27
Now, putting value of n in eq. 1

                                              C₂₇H₍₂₇ₓ₂₎₊₂

                                                  C₂₇H₅₆
Result:
           n  =  C  =  27

           y  =  H  =  56
4 0
4 years ago
A question on Reactants.
Natasha2012 [34]

Answer:

b lithium and water

Explanation:

8 0
3 years ago
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