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babymother [125]
3 years ago
5

Which of the following is an example of how a scientist might use a model?

Chemistry
1 answer:
tiny-mole [99]3 years ago
7 0
I am thinking it is c) A microscope is used to magnify a group of cells on a slide. 
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2. Food is another concern before the trip begins. Everyone has become accustomed to a 1500 calorie diet due the food
fomenos

About 46.1 pounds of apple would be needed per day of the trip.

I managed to extract the complete scenario from the attached image.

The trip is made up of 4 men and 3 women, making a total of 7 people.

Everyone has become accustomed to 1500 calories per day.

The total calories needed per day for 7 persons = 1500 x 7

                           = 10,500 calories

189 g of apple has only 95 calories, what g of apple will produce 10,500 calories?

                 = 10,500 x 189/95 = 20,889.67 g of apple

From conversion:

1 g = 0.00220462 pounds

20,889.67 g = 20,889.67 x 0.00220462

                         = 46.1 pounds of apple

More about dimensional analysis can be found here: brainly.com/question/22015862

8 0
3 years ago
What would you predict about the reaction of potassium in hydrochloric acid compared to potassium in water?
svlad2 [7]

<span>Define a Potassium Reaction: A Potassium Reaction involves a process in which Potassium is mixed with another substance which react to form something else. Reactions are manifested by the disappearance of properties characteristic of Potassium and the appearance of new properties in the new substance or Compound. The substances initially involved in a reaction are called reactants or reagents. The most important of the Potassium compounds is Potassium chloride (KCl) which is used in the production of fertilizers and chemicals and also as a salt substitute. Other important compounds are Potassium nitrate (KNO3), also known as saltpeter which is used in the production of gunpowder, fertilizers and pyrotechnics and Potassium hydroxide (KOH) is used to make detergents and soaps. Reactions are described with Chemical Formula and Equations.</span>

 
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3 years ago
If element X has 49 protons, how many electrons does it have? Your Answer:
finlep [7]

It has 49 electrons as well. The amount of protons and electrons are equal.

8 0
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Anti-acids contain ingredients, such as aluminium hydroxide and magnesium hydroxide. Anti-acids can provide almost instant relie
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help

Explanation:

3 0
2 years ago
Which of the following is an example of a genetically modified crop?
lord [1]

Answer:

Explanation:

Genetically modified crops (GM crops) are plants used in agriculture, the DNA of which has been modified using genetic engineering methods. In most cases, the aim is to introduce a new trait to the plant which does not occur naturally in the species.

4 0
3 years ago
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