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Alika [10]
3 years ago
10

BRAINLIESTTT ASAP!!! PLEASE HELP ME :) What makes an investigation credible and reliable?

Chemistry
1 answer:
Andrei [34K]3 years ago
6 0

Answer:

An investigation is credible and reliable if There is enough proof and evidence to support your investigation...

Happy to help

Pls mark as Brainliest.

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Which answers describe a dialect?
Nonamiya [84]

Dialect is referred to the characteristic features of vocabulary, syntax, or

pronunciation that distinguish speech used by a group.

Dialect is a type of language that helps to provide more information as to

where an individual is from. This is usually done by observing how the

individual pronounces words.

The characteristic features of vocabulary and syntax helps to distinguish

speech used by a group of people. The accent the individual uses also

serves as the major determinant in deducing the origin of an individual.

Read more on brainly.com/question/20032366

8 0
3 years ago
Calculate the volume of 12.0 g of helium at 100° C and 1.2 atm.
satela [25.4K]

Answer:

the answer I think is 76.5L

7 0
3 years ago
A sample of gas has an initial volume of 3.00 L and an initial pressure of 2.14 atm. If the volume expands to 8.15 L, what is th
Alla [95]

Answer:

The final pressure is 0.788 atm (option b).

Explanation:

Boyle's law says that the volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure. That is: if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases. This is expressed mathematically as the product of pressure times volume equal to a constant value:

P*V=k

Assuming a certain volume of gas V1 that is at a pressure P1 at the beginning of the experiment, by varying the volume of gas to a new value V2, then the pressure will change to P2, and it will be fulfilled:

P1*V1=P2*V2

In this case:

  • P1= 2.14 atm
  • V1= 3 L
  • P2= ?
  • V2= 8.15 L

Replacing:

2.14 atm*3 L= P2* 8.15 L

Solving:

\frac{2.14 atm*3 L}{8.15 L} =P2

0.788 atm= P2

<u><em>The final pressure is 0.788 atm (option b).</em></u>

6 0
3 years ago
Gases are very easy to compress. The best explanation for this is that
Simora [160]

Answer: gaseous molecules are far apart

Explanation:

One of the states in which matter exists is gas. Gases are made of up molecules that are far apart, travelling randomly and rapidly within the containing vessel.

Hence, they are easy to compress whereby they occupy limited space as the gaseous molecules are closely packed in vessels like cylinders and transported to places where they may be needed.

8 0
4 years ago
Read 2 more answers
this is the term used to describe magma that has left earth's interior usually through the force of a volcano
butalik [34]

Answer:

Lava

Explanation:

Once magma leaves the inside of the earth, it just gets a new name, which is lava.

5 0
3 years ago
Read 2 more answers
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