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liubo4ka [24]
2 years ago
12

Key Concepts

Chemistry
1 answer:
ladessa [460]2 years ago
8 0

Answer:

Explanation:

Answer

It tells you what method she used and what she wanted to accomplish.  She is using

        <em>an absolute dating method to study a sample of basalt</em>

So the answer you should post is F. F and the quotation above say the same thing.

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Your friend, a business major, overhears you talking about chemical energy and food and decides to develop a new super food for
RUDIKE [14]

Answer:

The question is incomplete. The response options are as follows:

I. C-O or C=O

II. C-C

III. C-H

IV. O-H

The answer is: IV>III>I>II

Explanation:

V) O-H is a hydrogen bridge. The hydrogen bridge is characterized by being similar to dipole-dipole bonds.

III) C-H is an ionic bond. The ionic bond occurs when they fuse together due to electron transfer.

I) C=O is a covalent bond. The covalent bond happens when two atoms bond together to create a molecule, sharing its electrons that are in its most superficial layer,

II) C-C is covalent bond.

7 0
3 years ago
8. A 220 mL sample of helium gas is in a cylinder with a movable piston at 105 kPa and 275K. The piston
Harrizon [31]

The sample has a new pressure of 274kPa. If at 105 kPa and 275K, a 220 mL sample of helium gas is contained in a cylinder with a moving piston. The sample is pushed till it has a 95.0 mL volume and 310K .

The macroscopic characteristics of ideal gases are related by the ideal gas law (PV = nRT). A gas is considered to be perfect if its particles (a) do not interact with one another and (b) occupy no space (have no volume). Where P= pressure  V= volume and T = temperature.

From ideal gas equation

P₁V₁/T₁ =P₂V₂/T₂

105×220÷275 = P₂ ×95÷310

P₂= (105×220×310)÷(275×95)

P2= 7161000/26125

P2 = 274.105 kPa

Hence, the new pressure of helium gas is 274kPa

To know more about Ideas gas equation

brainly.com/question/28837405

#SPJ1

8 0
1 year ago
Arrange steps in order to describe what happens to a gas when it is cooled
AnnZ [28]

A) Particles of gas move slower.

B) Gas changes to liquid.

C) The gas loses thermal energy.

D) Gas particles decrease.

3 0
3 years ago
In which position are the earth, moon, and sun during a new moon?
RSB [31]

Answer:

They are in this position

4 0
3 years ago
Which is a problem associated with the use of trees for biomass? I. Potential deforestation II. Burning fossil carbon III. Poten
BigorU [14]

Answer:

Both Option (I) and Option (III)

Explanation:

Biomass is usually defined as those organic molecules that are obtained from plants and animals, in order to produce energy. It is a renewable resource. Some of the examples of biomass include wood, crop, animal fossil fuel.

A large number of trees are being cut down to construct these biomass energies such as woods. This results in the deforestation process where the forested areas are converted into empty dry soils. This results in the increasing rate of erosion because the prevailing wind and flowing water can easily carry away the topsoil and loses the fertility of the soil.

Thus, the correct answers are both options (I) and (III).

7 0
3 years ago
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