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
lorasvet [3.4K]
3 years ago
15

A molecule with the formula ab3 has a trigonal planar geometry. part a how many electron groups are on the central atom?

Chemistry
1 answer:
True [87]3 years ago
4 0
<span>Answer: 3 electron pairs Let's take BF3 for an example. When you find the valence electrons for this molecule --> [3+(3x6)], you'll get 24e-. You draw the Lewis dot structure and each of the F atom would have six dots around it (a total of 18 because there's 3 F atoms) and the B would have three lines [one line attached to each F. One line would equal to 2 valence electrons] and you get a total of 24 valence e-. The question asks how many groups are on the CENTRAL atom, meaning on the B. It would be three</span>
You might be interested in
Which pair of symbols represents a metalloid and a noble gas?(1) Si and Bi (3) Ge and Te
Natali5045456 [20]
This is pretty easy lol.... AS and AR 

8 0
3 years ago
Read 2 more answers
What do ALL states of matter have in common?
VLD [36.1K]

Answer:

The common thing among the three states of matter is - They are made up of small tiny particles. They have a particular mass and can occupy space . This three states have volume in it . The atoms of this three states have force of attractions between them .

Explanation:

hope this helps <3

3 0
2 years ago
3. The opening that allows light to enter the eye is the
xxMikexx [17]

Answer:

A)  Iris

Explanation:

The Iris controls the diameter of the opening in your eye, thus also controlling the amount of light let inside. It's also reponsible for the colour of you eye.

4 0
2 years ago
Read 2 more answers
Pls help! 2CO + O2 → 2CO2
jok3333 [9.3K]

The bond energy of each carbon-oxygen bond in carbon dioxide is d. 736 kJ

Since the chemical reaction is 2CO + O₂ → 2CO₂ and the total bond energy of the products carbon dioxide CO₂ is 1,472 kJ.

Since from the chemical reaction, we have 2 moles of CO₂ which gives 1,472 kJ and there are two carbon-oxygen, C-O bonds in CO₂, then

2 × C-O bond = 1,472 kJ

1 C-O bond = 1.472 kJ/2

C-O bond = 736 kJ

So, the bond energy of each carbon-oxygen bond in carbon dioxide is d. 736 kJ

Learn more about bond energy here:

brainly.com/question/21670527

7 0
2 years ago
Read 2 more answers
The backbone in a nucleic acids strand is called:
Nina [5.8K]

Answer: Option (c) is the correct answer.

Explanation:

Backbone in a nucleic acids strand is made up of sugar molecules attached with phosphodiester bond.

This sugar-phosphate linkage helps in joining of nucleotides in a DNA sequence. Due to this backbone structural framework of nucleotides is formed. In DNA, the sugar is deoxyribose.  

Thus, we can conclude that the backbone in a nucleic acids strand is called sugar backbone.

4 0
3 years ago
Other questions:
  • If you wanted to look at a cell wall.Which type of cell wall would you observe?
    14·1 answer
  • How many atoms of Ca are in 4.7 moles of calcium?
    9·1 answer
  • Rate data have been determined at a particular temperature for the overall reaction 2NO(g) + 2H2(g) → N2(g) + 2H2O(g). The value
    5·1 answer
  • Hydrogen gas has a density of 0.090 g/L, and at normal pressure and -1.72 °C one mole of it takes up 22.4 L.
    8·1 answer
  • What is the mass of lead in 452 g PbCl2?
    7·1 answer
  • What is a key factor in the rate of chemical weathering of rock? The size of the rocks Chemical composition Exposure to wind
    6·1 answer
  • a gas has a pressure of 0.410 atm and a volume of 32L. At what pressure would the volume of the gas change to 28L?
    13·1 answer
  • What is the formal charge of carbon in CO?<br><br>|C≡O|​
    8·1 answer
  • Determine the oxidation number of sulfur in S203 ( with steps)
    9·1 answer
  • In a fizzy drink container how is steel separated from aluminium
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!