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anastassius [24]
3 years ago
7

Can someone help me pls

Chemistry
2 answers:
BartSMP [9]3 years ago
7 0

I can help. What is wrong.

Salsk061 [2.6K]3 years ago
5 0

Answer:

Helium (He)

Explanation:

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Why was Niels Bohr’s atomic model superior to all the earlier models?
sergeinik [125]

Answer:

B

Explanation:

The Niels Bohr's atomic model superior to all the earlier models is because it showed how the electron could orbit the nucleus without falling into it

7 0
3 years ago
We add 1.4 moles to 700 mL of water. What is the molarity
Nastasia [14]

Answer:

Molarity= 2M

Explanation:

n=1.4, V= 700ml= 0.7dm3

n= CV

1.4= C×0.7

C= 1.4/0.7= 2M

8 0
4 years ago
Determine whether the graph is that of a function by using the vertical-line test. If it is, use the graph to find (a) its domai
Ilia_Sergeevich [38]

Answer:

Following are the solution to this question:

Explanation:

If the draw a line perpendicular with y-axis thru the diagonal line check but it meets only one curved point, therefore the curve indicates a function not otherwise.  They draw a vertical line perpendicular to the y-axis there, it just intersects one more chart point, which is why a graph is a feature:

In point a:

\to Domain= [-\pi ,\pi ]\\\\\to Range = [-1,1]

In point b:

Its y-axis length cut also by understanding the benefits of y-interception and the x-axis length gives the x-intercept.  

\to y-intercept = 1\\\\\to x-intercept = \frac{\pi}{2} ,- \frac{\pi}{2} \\\\

In point C:

Every graph is y-axis symmetric because the left side of the column as well as the middle side of the graph is about the same.

3 0
3 years ago
Many ions are said to have a "noble gas configuration" because?
Yakvenalex [24]
Because they follow the octet rule and the outer most electrons, the valence electron shell is full.
7 0
3 years ago
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If an object is not moving its kinetic energy is zero.<br><br> True<br> False
Svetach [21]

Answer: This is true because kinetic energy depends on speed. If there's no speed, then there is no kinetic energy.

7 0
4 years ago
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