1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
timofeeve [1]
3 years ago
9

2. Which of the following is Not true about the noble gases? a. They have completely filled energy levels. b. They have weak int

ermolecular forces. c. They do not bond with other elements in nature. d. They have boiling points above room temperature.
Physics
1 answer:
yanalaym [24]3 years ago
3 0
C because Noble gasses typically do not create chemical bonds. 
You might be interested in
Assume that a cloud consists of tiny water droplets suspended (uniformly distributed,
aev [14]
9.8 ms^-2 is acceleration
4 0
3 years ago
A passenger on your boat falls overboard. what should you do first?
yarga [219]
The very first thing that you should do when a passenger on your boat falls overboard is to throw a PFD or also known as a Personal Flotation Device. This would include anything that can help the passenger to float. But this step would differ, only if the passenger is not wearing a lifevest. 
5 0
3 years ago
Can the object be in motion if the net force acting on it is zero? explain.
artcher [175]
When object travels with uniform velocity, no force acts on it. hence , yes.
3 0
3 years ago
A 60 kg runner accelerates during a race at 3m/s2. what force is exerted on the earth with each step
marusya05 [52]

Answer:

180 Newton(N)

Explanation:

force =mass *acceleration

=60 * 3

=180 kgm/s^2

=180 N

6 0
3 years ago
In Lesson 20, a magnesium strip was used to ignite the thermite reaction. When magnesium is placed in a flame from a small blow
nadezda [96]

Answer:

2 electrons will be needed by unbound oxygen in order to fill its 2nd shell.

Explanation:

The chemical reaction between magnesium and oxygen gives magnesium oxide as a product.The reaction is chemically represented as:

2Mg(s)+O_2(g)\rightarrow 2MgO(s)

Magnesium is a metal of group-2 with 2 valence electrons.It has atomic number of 12.

[Mg]=1s^22s^22p^63s^2

In order to attain noble gas configuration it will loose two electrons.

[Mg]^{2+}=1s^22s^22p^6

Mg\rightarrow Mg^{2+}+2e^-...[1]

Oxygen is a non metal of group-16 with 6 valence electrons..It has atomic number of 8.

[O]=1s^22s^22p^4

In order to attain noble gas configuration it will gain two electrons.

[O]^{2-}=1s^22s^22p^6

O+2e^-\rightarrow O^{2-}..[2]

2 electrons will be needed by unbound oxygen in order to fill its 2nd shell.

6 0
3 years ago
Other questions:
  • A rigid cube (each side is 0.10 m) is filled with water and frozen solid. When water freezes its volume expands about 9%. How mu
    11·1 answer
  • Does the size of the particles change as the substance changes state?
    7·2 answers
  • If molecules in a substance move FASTER will the TEMPERATURE increase or decrease?
    14·1 answer
  • Ignacio and Velvet walk eastward with a speed of 8 m/s. If it takes them 7.5 minutes to walk to the store, how far in meters hav
    15·2 answers
  • You (in the x' frame) are moving with v = +5 m/s with respect to the x frame. If your initial position in each frame is Om, what
    11·1 answer
  • What is the difference between a physical change and a chemical change
    10·2 answers
  • A hot metal washer is placed in a jar of cool water.
    6·1 answer
  • The earth exerts a force of 1900 N on an or-
    6·1 answer
  • An object undergoes two successive displacements:
    12·1 answer
  • A soccer ball is kicked horizontally off a 25 m high cliff and lands at a distance of 40.0 m from the edge of the cliff. Determi
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!