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3 years ago

What is a covalent bond?

2 answers:

5 0

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

svetlana [45]3 years ago

5 0

Answer:

A chemical bond formed when electrons are shared between two atoms.

I hope this helps! Best of luck! :)

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Which of the following is not a response?

irina1246 [14]

Answer:

The correct option is B) a mushroom appearing wet in the rain.

Explanation:

A response is generated when a living body detects a change or event as a signal or a stimulus.

In the option A, the Sun acts as a stimulus. The response is the tree turning its leaves.

In the option C, touch is the stimulus. The contraction of the protozoa is the response.

In the option D, the smell of food is the stimulus. Rumbling of the stomach is the response.

In the Option B, no response is carried out by the mushroom. Hence option B does not show an action or response.

7 0

3 years ago

A teacher gives her students four different liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and mi

emmainna [20.7K]

Use the pH color scale. It shows acidity level of both acids and bases. You dip one of the pH strips into whatever liquid you choose, and then compare the new color of the pH strip to the colors on the scale. This will tell you the level of acidity. pH scale can be found below. As you can see, the brighter colors are more acidic than the darker and duller colors.

3 0

3 years ago

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I need help with the awnsers

AleksAgata [21]

First of all, this was a bit garbled up, so it is sort of incomplete.

You gave me a total of 43 words, and I only counted 41 slots on the crossword graph itself, which is problematic.

I got as far as I could, but some of the words either weren't provided, or the spaces were made incorrectly for the length of these words.

Across:
2. (black / pitch)
7. conservation
9. radiation
12. crest
13 ?
14. whatever you wrote
15. dense
18. ? (radiant)
19. ? (radiant)
20. amperes
23. medium
25. density
26. ?
30. resistance
31. (pitch / black)
34. voltage
35. insulator
38. amplitudes
39. thermal
40. ?
41. wavelength

Down:
1. electromagnetic
3. (conduction/ convection)
4. (convection/ conduction)
5. (current/ radiation)
6. heat
7. chemical
8. transverse
10. energy
11. nuclear
12. circuit
16. electrical
17. electrons
21. mechanical
24. source
28. ?
32. rise
33. MRS CHEN
34. volts
36. sound

7 0

3 years ago

The substances that are present when a chemical reaction begins are the products.

Sav [38]

The new substances that are formed during a chemical reaction are called the products. The original substances are called the reactants. For example, when hydrogen gas is added to oxygen gas and ignited, the new substance water is formed. The reactants are hydrogen and oxygen.

-Diane:)

3 0

3 years ago

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Pleace and peace!!!!!!!!!!!!!!!!!

Keith_Richards [23]

Answer:

Part a: C)

Part b: A)

Explanation:

a heterozygous (Rr) and a Homogenous (rr)

Part a: C)

There is only one out of 4 (Rr) so 1/4

7 0

3 years ago

Read 2 more answers