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viva [34]
2 years ago
9

What is the coefficient and the formula 3Zn(NO3)2 represent ?

Chemistry
1 answer:
Mashutka [201]2 years ago
4 0

The answer is 6 nitrogen atoms.

The given chemical formula is : <u>3Zn(NO₃)₂</u>

Let's find the number of nitrogen atoms by opening the bracket.

  • 3ZnN₂O₆
  • Zn₃N₆O₁₈

Hence, there are 6 nitrogen atoms.

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Which of the following correctly describes molecules of two different gases if they are at the same temperature and pressure?
Lubov Fominskaja [6]

Answer:

Option C = They must have same average kinetic energy.

Explanation:

According to the kinetic molecular theory,

1. The kinetic energy of gas molecules is only depend upon the temperature.

2. The gas molecules are randomly moves in any direction and thus colloid with each other and wall of container. This collision is elastic.

3. The volume of gas particles is negligible as compared to the volume of container.

4. The ideal gas does not exhibit attractive and repulsive forces.

The first postulate of kinetic molecular theory state that the average kinetic energy is depend upon the temperature so at the same temperature and pressure the two different gases have same kinetic energy.

8 0
4 years ago
PLS HELP ASAP, WILL GIVE 100 POINTS.
Ivan

Answer: values of the quantum numbers: -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6

location of the electron: In the 7th energy level away from the nucleus.

Explanation:

From the description of the problem, the magnetic number is given is as -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6 and the electron is located in the 7th energy level away from the nucleus. Basically, the problem is testing for the understanding of the principal quantum numbers which gives the location of electrons and the magnetic quantum number that shows the spatial orientation of the orbitals.

           The orbital designation of the describe electron is 7d

Magnetic quantum number is limited by the azimuthal quantum number which is the quantum number describing the possible shapes. The azimuthal is given as L= n-1. "n" is the principal quantum number which is 7. Therefore L is 6 and the magnetic quantum numbers are -6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6

The position of the electron is given by the principal quantum number which represents the main energy level in which the orbital is located or the average distance from the nucleus.

Got it from quasarJose

Hope it helps

5 0
3 years ago
Draw the simplified curved arrow mechanism for the reaction of butan-2-one and CH3Li to give the major product.
Yuki888 [10]

Answer:

Follows are the solution to this question:

Explanation:

Please find the image file of the chemical reaction in the attachment:

In a water medium, the CH3- type CH 3Li is a heavy nucleophile that attacks the carbonyl carbon atom to form the alkoxide ion, which will then be protonated to form alcohol.

8 0
3 years ago
The table compares the final cost of
Snowcat [4.5K]

Answer:

y = -2.5 + x

Explanation:

Given the data:

__X____Y

$20 __$17.50

$21 __ $18.50

$22__ $19.50

$23__ $20.50

Using a linear regression calculator :

The linear regression model obtained is :

y = -2.5 + x

Where ; - 2.5 = intercept ; gradient / slope = 1

3 0
3 years ago
A lab experiment shows: merge a litmus paper in a
ddd [48]

Answer:

2.

Explanation:

When you put the paper in a solution, it will turn blue if it is basic, or red if it is acidic. If it does not change color, it is fairly neutral.

6 0
3 years ago
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