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Bingel [31]
3 years ago
12

You happen to be visiting Northern California and you are driving by Suisun Bay, a notorious graveyard for old ships. You notice

that all of these ships appear tobe rusting away. Which of the following statements is true?A chemical change is the result of a chemical reaction. A physical change just changes the state of the substance.A chemical change is the result of a chemical reaction. A physical change just changes the state of the substance.Changes in matterThe rusting of the metal is neither a chemical change nor a physical change.The rusting of the metal is a chemical change.The rusting of the metal is both a chemical change and a physical change.The rusting of the metal is a physical change.Black ice is neither a chemical change nor a physical change.Black ice is an example of a chemical change.Black ice is both a chemical change and a physical change.Black ice is an example of a physical change.
Chemistry
1 answer:
eduard3 years ago
4 0

Answer:

1) rusting of metal is both chemical and physical change

2) black ice is an example of a physical change

Explanation:

when metal rusts, it is due to a reaction between the atoms in the metal and the atoms in the air(oxygen) or water(oxygen). When it rusts it also physically changes the look of the metal from silver to dirty brownish maroon.

Black ice is a change in state hence it cannot be a chemical change as the original substance NO LONGER EXISTS in a chemical reaction. It is a physical change however as the ice is changing into a different state of matter.

HOPE THIS HELPS!!!

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fiasKO [112]

Answer:land

Explanation:

6 0
3 years ago
3. (10 Points) You buy a helium balloon of 14 Liters for your friend's birthday and
vesna_86 [32]

Answer: picture shows work for # 1,2,4,5,7

Explanation:

number 3: as the pressure in the volume decreases, the volume increases causing it to expand and eventually blow.

number 6: because the temperature and the amount of gas don’t change, these terms don’t appear in the equation. What Boyle’s law means is that the volume of a mass of gas is inversely proportional to its pressure. This linear relationship between pressure and volume means doubling the volume of a given mass of gas decreases its pressure by half.

hope this helps :))

7 0
2 years ago
Describe the major types of bodies of water
Alina [70]
<h2>Answer and Explanation </h2>

The body of water means the occurrence of water on earth’s surface. Examples are oceans,  lakes,  seas, ponds, and pools. The major bodies of water are:

  • Pacific ocean is the biggest and deepest of Earth's oceanic divisions. It stretches from the Arctic Ocean in the direction to the Southern Ocean.
  • Atlantic ocean is another giant of the world's oceans.  It includes nearly 20 percent of the Earth's exterior and nearly 29 percent of its water covering space.
  • The Indian Ocean is the third largest Ocean in the world. It is surrounded by Asia, Africa, and Australia.
  • Arctic ocean is the smallest and shallowest of the world's five main oceans.
  • Mediterranean sea is a sea is attached to the Atlantic Ocean.
4 0
3 years ago
The oxygen atom of a ketone (such as cyclohexanone) contains 2 lone pairs of electrons. These pairs of electrons most likely res
skelet666 [1.2K]

Answer: The given pairs of electrons most likely reside in sp^{2} type of orbital.

Explanation:

As it is given that two lone pair of electrons are present on the oxygen atom of ketone (such as cyclohexanone).

Also, there will be one bond pair between carbon and oxygen atom.

Hence, total electrons present in the domain are as follows.

2 lone pairs + 1 bon pair of electron = 3 electron domains

This means that there will be sp^{2} type of orbital present.

Thus, we can conclude that given pairs of electrons most likely reside in sp^{2} type of orbital.

5 0
2 years ago
The state of matter in which a material has a definite shape and a definite volume is the _____ state.
Scilla [17]

Answer:

solid

Explanation:

in the solid state the material will has a fixed shape and volume whatever the container that contains it

where in liquid the shape will be different depending on the container

and in gas state the shape and volume are not definite

3 0
2 years ago
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