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dem82 [27]
3 years ago
12

Predict the molecular shape and give the approximate bond angle in the CO2 molecule. Multiple Choice linear, 180° O trigonal pla

nar, 120 o tetrahedral, 109.5" trigonal pyramidal, 109.5" O bert, 1201

Chemistry
1 answer:
Gekata [30.6K]3 years ago
7 0

Answer: Linear, 180°

Explanation: According to VSEPR theory, the electron pairs surrounding an atom will position themselves around said atom in a way which minimizes the repulsion between them, in other words, as far apart from each other as they can.

In CO2, carbon is the central atom and it forms two double bonds with two different oxygen atoms. In this case, the only electron pairs surrounding the central atom are the ones forming each of the double bonds. VSEPR theory predicts that these two electron densities will repel each other as much as they can, and the molecular shape that will allow this to happen is a linear geometry with an approximate bond angle of 180°.

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How are objects charged by friction
mote1985 [20]

Answer:

When insulating materials rub against each other, they may become electrically charged . Electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. The material that gains electrons becomes negatively charged

Explanation:

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4 0
3 years ago
What is the frequency of this radiation
tankabanditka [31]

RADIATION. Radio waves, microwaves, IR, light, UV, x-rays, GAMMA waves etc are ALL Electromagnetic radiation. The difference between ALL the above is the frequency, I.E. The number of waves per second. The higher the frequency the more energy.

6 0
3 years ago
6.00 moles of sodium perchlorate contains the same number of atoms as __________. 6.00 moles of sodium perchlorate contains the
Ksju [112]

Answer:

6.00 moles of sodium permanganate

Explanation:

Let us attempt to count the number of atoms present in sodium perchlorate. The formula of the compound is NaClO4

Sodium atoms - 1

Chlorine atoms - 1

Oxygen atoms -4

Total number of atoms = 6

Among the options, only KMnO4 also has six atoms. One atom of potassium, one atom of manganese and four atoms of oxygen.

3 0
3 years ago
What mass of zinc is needed to react with 23.1g of phosphoric acid according to the following equation?
Hunter-Best [27]

23.01 g of zinc (Zn)

Explanation:

We have the following chemical reaction:

3 Zn + 2 H₃PO₄ = 3 H₂ + Zn₃(PO₄)₂

number of moles = mass / molar weight

number of moles of phosphoric acid = 23.1 / 98 = 0.236 moles

Taking in account the chemical reaction, we devise the following reasoning:

if           2 moles of H₃PO₄ are reacting with 3 moles of Zn

then      0.236 moles of H₃PO₄ are reacting with X moles of Zn

X = (0.236 × 3) / 2 = 0.354 moles of Zn

mass = number of moles × molar weight

mass of Zn = 0.354 × 65 = 23.01 g

Learn more about:

number of moles

brainly.com/question/13911775

#learnwithBrainly

5 0
3 years ago
When a solution is considered to have a high concentration of hydrogen ions (H+) is also considered to be?
charle [14.2K]

Answer: option A. acidic

Explanation: acidic solution is characterized by the presence of Hydrogen ion.

6 0
3 years ago
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