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Inessa05 [86]
3 years ago
8

I don't understand this part? Plz help =)

Chemistry
1 answer:
Murljashka [212]3 years ago
5 0
Search up the question on here and it will pop up I hope that helps
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How many moles are in 85.0 grams of water
alexgriva [62]
To convert from grams to moles, you must divide the given mass by the molecular weight. If this is so, then:

Water ≈ 18.02 grams/mol.

85.0 g/ 18.02 g/mol ≈ 4.72 moles
3 0
3 years ago
A car moves with an average speed of 45miles /hour. How long does the car take to travel 90miles?
storchak [24]

Averqge speed of the car = 45 miles/hr, which means,

The car travels 45 miles in 1 hr.

Using unitary method,

The car travels 45 miles in 1 hr

The car would travel 1 mile in 1/45 hrs

The car would travel 90 miles in 1/45×90 hrs

So, calculating this,

1/45×90 = 2 hrs

3 0
3 years ago
Read 2 more answers
A map here shows the motion of a tectonic plate off the coast of the western united states. Which evidence supports the theory o
notsponge [240]

Answer:

Fossils, the shape of continents, the mid-ocean ridge system, sea floor sediment deposits, and the magnetism of rocks.

Explanation:

Fossils, the continent's shape, the mid-ocean ridge system, sea floor sediment deposits, and the magnetism of rocks on the sea floor are the evidences that support the theory of plate tectonics in the area. Fossils provides information to us when and where plants and animals once existed. Due to diverging plates, some life became isolated, and evolved into new species. Continental ‘fit’ through coastline matching. Some division of continents look as though they should fit together, e.g. South America and Africa.

7 0
3 years ago
Explain your answer with given reason
Ludmilka [50]

Im not really sure but my best guess is d 52.8%

7 0
2 years ago
The disaccharide lactose can be decomposed into its constituent sugars galactose and glucose by acid hydrolysis or by the enzyme
Fed [463]

Answer:

The answer is Disaccharide

Explanation:

Both Glucose and Galactose are a type of Monosaccharide. Because Lactose contains both Glucose and galactose, it contains 2 Monosaccharides, which make it Disaccharide

6 0
3 years ago
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