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MissTica
3 years ago
11

Explain what you understand by valency, give examples​

Chemistry
1 answer:
Lostsunrise [7]3 years ago
3 0

Answer:

Valency is defined as the number of hydrogen atoms which combine directly or indirectly with one atom of an element.

Example:

One atom of nitrogen combines with three atoms of hydrogen to form ammonia gas. So, the valency of nitrogen is 3.

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Which statements are correct relative to carbohydrates?
inna [77]

Answer:

Hi, the statements given in the question (a and b) are combination of right and wrong answers. But i will split the statement a and b into necessary fragments.

Carbohydrates are quick source of energy relatively. That is the only correct statement in the question.

Explanation:

Carbohydrates are naturally occurring organic compounds containing carbon, hydrogen and oxygen with the general formula (Cx H2y Oy) or Cx (H2O)y. They can be classified into simple sugar or complex sugar.

Simple sugars can be further divided into Monosaccharides (e.g glucose, fructose and galactose) and Disaccharides (e.g sucrose and maltose).

Complex sugar can be referred to as Polysaccharides (e.g cellulose and starch)

The statement above that says carbohydrate contains carbon,  hydrogen and nitrogen polymers is not correct.

Carbohydrates are not mostly monosaccharides. They also contain Disaccharides and Polysaccharides.

They are not the only source of fuel.

8 0
3 years ago
When elements form bonds, it changes their ______ properties.<br>The answer is..? ​
Arturiano [62]

Answer:

chemical and physical

6 0
3 years ago
List the 9 foods that weaken your immune system and explain why.<br><br> NO LINKS
aniked [119]

Answer:

salty foods

Explanation:

Salty foods like chips, frozen dinners, and fast food may impair your body's immune response, as high salt diets may trigger tissue inflammation and increase the risk of autoimmune diseases.

3 0
2 years ago
Read the excerpt from "The Speech."
Y_Kistochka [10]

Answer:

<em>it's</em> <em>quickly moved</em>

Explanation:

<em>whisk </em>

<em>/(h)wisk/ </em>

<em>Learn to pronounce </em>

<em>verb </em>

<em>past tense: whisked; past participle: whisked </em>

<em />

<em>take or move (someone or something) in a particular direction suddenly and quickly.</em>

<em />

<em>Hope this helps ^^</em>

5 0
2 years ago
Read 2 more answers
Jarvis checked his odometer reading when filling his tank, and then checked it several days later when he filled his tank again.
8_murik_8 [283]

Answer: 26.25 miles per gallon

Explanation: first odometer reading = 65290

Second odometer reading = 65500

Difference in odometer reading = second reading - first reading

= 65500 - 65290 = 210 miles.

If it took 8 gallons to fill his tank, it means

8 gallons will get him 210 miles, therefore 1 gallon will get 210 miles/8gallons = 26.25miles/gallon. Hence he is getting 26.25miles/gallon.

4 0
3 years ago
Read 2 more answers
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