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3 years ago

Which statement describes the formation of a covalent molecule?

Physics

2 answers:

Phoenix [80]3 years ago

8 0

Answer:

B) an atom of an element with atomic number 8 reacts with two hydrogen atoms

Explanation:

A covalent bond is formed when two atoms share pairs of electrons. In a covalent bond, stability comes from the electrostatic attraction between the positively charged atomic nuclei and the negatively charged electrons shared between them.

marissa [1.9K]3 years ago

4 0

The situation that could be best attributed to a covalent molecule would be the second choice which is "<span>an atom of an element with atomic number 8 reacts with two hydrogen atoms." In addition, covalent bonding usually follows the Octet Rule as electrons are shared between elements.</span>

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Which one of the following is an example of a solution?

insens350 [35]

Answer:

it is maybe A but i'm not 100% sure

Explanation:

its the only one that is mixed

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2 years ago

A ruler has a division of 1mm. You use the ruler to measure a piece of paper. You find that it is 7.4 cm wide and 8.3 cm long. W

Anastaziya [24]

Answer:

Explanation:

Given the dimension of a paper measured by a ruler as 7.4 cm wide and 8.3 cm long, the area of the paper is expressed using the area for calculating the area of a rectangle as shown;

Area of the piece of paper = Length * Width

Given length = 7.4cm

Length = 74mm (Since 10mm = 1cm)

Width = 8.3cm

Width (in mm) = 83mm

We converted to mm since the ruler used to measure has a division of 1mm.

Substituting the given values into the formula, we will have:

Area of the piece of paper = 74mm * 83mm

Area of the piece of paper = 6,142mm²

<em>Hence, the area of the piece of paper is 6,142mm²</em>

3 0

2 years ago

What is the highest pHoney bees beat their wings, making a buzzing sound at a frequency of 2.3 × 102 hertz. What is the period o

VMariaS [17]

The period of the wave is 4.35 ms. The sound waves are called longitudinal waves

Explanation:

The period of a wave is related to its frequency by the equation:

$T=\frac{1}{f}$

where

T is the period

f is the frequency

For the bee in this problem, the frequency of the sound wave emitted by it is

$f=2.3 \cdot 10^2 Hz = 230 Hz$

Therefore, the period of the sound wave is

$T=\frac{1}{230}=4.35\cdot 10^{-3}s = 4.35 ms$

The sound wave is a type of wave called longitudinal wave. In longitudinal waves, the oscillation of the medium occurs in a direction parallel to the direction of motion of the wave: therefore in a sound wave, the particle of the medium (air, in this case) oscillate back and forth along the direction of propagation of the wave, forming alternating areas of higher density of particles (called compressions) and of lower density of particle (called rarefactions).

The other type of wave, instead, is called transverse wave. In a transverse wave, the oscillation of the wave occurs in a direction perpendicular to the direction of motion of the wave. An example of transverse waves are the electromagnetic waves, which consists of electric field and magnetic fields that vibrate in a plane perpendicular to the direction of motion of the wave itself.

Learn more about waves:

brainly.com/question/5354733

brainly.com/question/9077368

#LearnwithBrainly

5 0

3 years ago

Please help on these questions!!!

tatiyna

-- First question . . . first answer choice

-- Second question . . . second answer choice

-- Third question . . . third answer choice

8 0