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3 years ago

What types of tissues build the digestive system?

1 answer:

6 0

The digestive system isn't really made up of a specific type of tissues, but rather composed of different organs within the system. The digestive system is made up of the alimentary canal and the other abdominal organs that play a part in digestion, such as the liver and pancreas. The alimentary canal (also called the digestive tract) is the long tube of organs — including the esophagus, the stomach, and the intestines.

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What causes water molecules to be attracted to each other?

Fiesta28 [93]

This polarity makes water molecules attracted to each other. The oxygen-hydrogen bond in the alcohol molecule is also polar. But, the carbon hydrogen bonds in the rest of the alcohol molecule are nonpolar. In these bonds, the electrons are shared more or less evenly.

8 0

3 years ago

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A sample of a mineral solid weighing 28.5 g was added to a graduated cylinder filled with to a level of 20.3 mL. As a result, th

bonufazy [111]

Answer:

2.8 g/mL is the density of the mineral.

Explanation:

The mass, $m=28.5\ g$

Volume of the object = Volume of water level rose - Initial volume of water = 30.5 mL - 20.3 mL = 10.2 mL

The expression for the calculation of density is shown below as:-

$\rho=\frac{m}{V}$

$\rho=\frac{28.5\ g}{10.2 mL}=2.8\ g/mL$

<u>2.8 g/mL is the density of the mineral.</u>

8 0

4 years ago

Mention 10 products made from crude oil

garri49 [273]

Answer:

"After crude oil is removed from the ground, it is sent to a refinery where different parts of the crude oil are separated into useable petroleum products. These petroleum products include gasoline, distillates such as diesel fuel and heating oil, jet fuel, petrochemical feedstocks, waxes, lubricating oils, and asphalt.

A U.S 42-gallon barrel of crude oil yields about 45 gallons of petroleum products in U.S. refineries because of refinery processing gain. This increase in volume is similar to what happens to popcorn when it is popped."

"What are petroleum products, and what is petroleum used for?

Petroleum products include transportation fuels, fuel oils for heating and electricity generation, asphalt and road oil, and feedstocks for making the chemicals, plastics, and synthetic materials that are in nearly everything we use. Of the approximately 7.21 billion barrels of total U.S. petroleum consumption in 2016, 47% was motor gasoline (includes ethanol), 20% was distillate fuel (heating oil and diesel fuel), and 8% was jet fuel."

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2 years ago

Why are redox reactions used in batteries?

Phoenix [80]

Answer:

Why are redox reactions used in batteries? The attraction between charged ions releases energy. The movement of electrons creates an electric current. The reactions are extremely exothermic, producing an electric current.

Explanation:

Why are redox reactions used in batteries?

The attraction between charged ions releases energy.

The movement of electrons creates an electric current.

The reactions are extremely exothermic, producing an electric current.

The reactions are extremely endothermic, inducing the movement of electrons.

5 0

3 years ago

Amanda places her water bottle in the freezer to cool down the water. She leaves it for an hour. Upon returning, she finds the w

nika2105 [10]

Answer:

Freezing

Explanation:

It changed from a liquid to a solid and that process is call freezing

8 0

3 years ago

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