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Pepsi [2]
2 years ago
7

Help me please TwT. I really need it TwT

Chemistry
1 answer:
lbvjy [14]2 years ago
5 0

Answer:

The air moves to the low pressure system creating wind.

Hope this helps! :)

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After gathering sufficient evidence to generate an _____for a nutrient, that value is used to establish an RDA for the same nutr
nlexa [21]

Answer:

Estimated Average Requirement (EAR).

Explanation:

Hello,

In this case, it is important to consider that Dietary Reference Intakes (DRIs) are reference values to quantitatively estimate the nutrient necessities to be taken for planning and assessing diets for healthy people. On the other hand, the Recommended Dietary Allowance (RDA) is the average daily dietary intake level that is enough to know the nutrient necessity of nearly all (about 98%) healthy individuals in a particular population. The answer is Estimated Average Requirement (EAR) which is a nutrient intake value that is considered to meet the necessity of half (50%) the healthy individuals in a particular population.

Best regards.

6 0
3 years ago
Solids are usually more dense than:
MrMuchimi
Solids are usually more dense than liquids and gases. 
6 0
3 years ago
Read 2 more answers
Ice must absorb heat to melt into water. What must water do to evaporate?
Flauer [41]
Increase in heat, molecules start to escape and it turns to vapor
3 0
3 years ago
Read 2 more answers
Identify some other substances (besides KCl) that might give a positive test for chloride upon addition of AgNO3. Based on the r
SashulF [63]

Answer:

Other substances that give a positive test with AgNO3 are other chlorides present, iodides and bromide. However iodides and bromides have different colours hence they will not give a false positive test for KCl. Other chlorides present may lead to a false positive test for KCl.

Explanation:

In the qualitative determination of halogen ions, silver nitrate solution is used. Various halide ions give various colours of precipitate with silver nitrate. Chlorides yield a white precipitate, bromides yield a cream precipitate while iodides yield a yellow precipitate. All these ions or some of them may be present in the system.

However, if other chlorides are present, they will also yield a white precipitate just as KCl leading to a false positive test for KCl. Since other halogen ions yield precipitates of different colours, they don't lead to a false test for KCl. We can exclude other halides from the tendency to lead us to a false positive test for KCl but not other chlorides.

3 0
3 years ago
Sodium chloride procedure​
MAVERICK [17]

Answer: Dissolve approximately 3 mg of Sodium Chloride in 2 mL of water.

Add 0.4 mL of silver nitrate TS and acidify with diluted nitric acid.

8 0
2 years ago
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