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
MatroZZZ [7]
3 years ago
11

If you made a three-dimensional model of an atom and its nucleus, how would you represent the atom? 7th grade

Chemistry
1 answer:
Gemiola [76]3 years ago
7 0

Answer:

it shows the breakdown of the atom

Explanation:

it will show it molecularly

You might be interested in
Which inquiry skill is based on identifying common features?
expeople1 [14]
<span>Classify is the answer hope this helps :)</span>
3 0
3 years ago
Determine the oxidation number for nitrogenin
iris [78.8K]

Answer:

1(a) N = 3

(b) N = 0

(c) N = 5

(d) N = -2

(2) Molecular formula for benzene is C6H6

Explanation:

1(a) N02 1-

N + (2×-2) = -1

N-4 = -1

N = -1+4 = 3

(b) N2

2(N) = 0

N = 0/2 = 0

(c) NO2Cl

N + ( 2×-2) + (-1) = 0

N - 4 - 1 = 0

N - 5 = 0

N = 0+5 = 5

(d) N2H4

2(N) + (4×1) = 0

2N + 4 = 0

2N = 0 - 4 = -4

N = -4/2 = -2

(2) Molcular mass of benzene = 78g/mole = (6×12g of carbon) + (6×1g of hydrogen) = 72+6 = 78g/mole

Therefore, molecular formula for benzene is C6H6

7 0
3 years ago
Which of the following does NOT involve a change of state? a. pouring water into a vacuum-insulated bottle b. sublimation of dry
Elena L [17]
<h2> The correct option is (a).</h2>

Explanation:

  • There is no change of state in pouring water into a vacuum insulated bottle as the vacuum created inside the bottle only reduces the time limit for the transfer of heat by conduction and convection.
  • It helps the content filled in the bottle to be hot and cool for a longer time.

Hence, option (a) is correct.

Rest of the options (b), (c), (d), (e) is not correct because of the following reasons:

  • In the sublimation of dry ice, the dry ice (solid-state) is changed to the vapour form.
  • In the freezing of water, the liquid state is changed to solid-state.
  • During the vaporization of alcohol, the liquid state is changed to the vapour form.
  • During the melting of ice, the solid-state is changed to the liquid state.

6 0
3 years ago
Which stage of the cell cycle usually lasts the longest
nata0808 [166]
The interphase usually lasts the longest
4 0
3 years ago
Read 2 more answers
PLS HELP!! WILL MARK BRAINLIEST TO RIGHT ANSWER!!!
andre [41]

Answer:

1. A) Its very dense

2. D) weight depends on gravity and mass is constant

3. C) Quart

4. D) 125 cubic cm

5. B) Attribute

Explanation:

8 0
3 years ago
Other questions:
  • Jason noticed that his flashlight stopped working. He solved the problem by using the scientific method. Arrange the steps he fo
    9·2 answers
  • Should someone who lives on the sixth floor of an apartment building be concerned about radon in his or her apartment? Why or wh
    11·1 answer
  • Which is not a particle within an atom
    9·2 answers
  • If you are given ethanol (C8H18) 6.3lbs/ gal and you have 12 gallons how many moles do you have? 
    7·1 answer
  • 1. Determine whether the following hydroxide ion concentrations ([OH−]) correspond to acidic, basic, or neutral solutions by est
    15·1 answer
  • Convert for the following kelvin temperatures to degrees Celsius 188K 631K
    8·1 answer
  • Function of leaves ​
    14·1 answer
  • A 3.20-mol sample of gas occupies a volume of 350. mL at 300.0 K. Determine the
    12·1 answer
  • Which of the following is true about electrostatic forces? Check all that are true:
    11·1 answer
  • Some one have a full conversation with me I am so bored
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!