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Bess [88]
3 years ago
6

Which is an example of an element? A) salt (NaCl) B) water (H20) C) silver (Ag) D) electron (e-)

Chemistry
2 answers:
11Alexandr11 [23.1K]3 years ago
8 0
Silver is the right answer.
Artemon [7]3 years ago
4 0
The answer is c. silver (AG)

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A gas occupies a volume of 60 L at a temperature of 0.5 K. What will the volume be at 4 K?
Flauer [41]

Answer:

480 L

Explanation:

In order to solve this question, you should be familiar with gas laws. (I will attach a picture showing all of them under my answer.) In this question in particular, however, we only need Charles's Law because we're dealing with temperature and volume.

As we can see, Charles's Law is:

\frac{V_{1} }{T_{1} } = \frac{V_{2} }{T_{2} }

or, initial volume over initial temperature equals final volume over final temperature.

In this question, 60 L is our <u>initial volume,</u> and 0.5 K is our <u>initial temperature</u> (K being Kelvin). We are only given 4 K as our <u>final temperature</u>. We are asked to solve for the <u>final volume</u>. Let's set up the equation and solve for V_{2}:

--------------------------------------------------------------------------------------------------------------

(60) / (0.5) = V_{2} / (4)

↓

120 = V_{2} / 4

×4           ×4

↓

V_{2} = 480 L

--------------------------------------------------------------------------------------------------------------

There's our answer! Feel free to comment if you have any questions about my answer :)

3 0
3 years ago
How many carbon atoms will be in the longest chain of 2,2,4-trimethylpentane
FrozenT [24]

The carbon atoms that will be in the longest chain of 2, 2, 4 – trimethyl pentane is 5. There are 5 carbons in the longest chain that forms a cross.

<span>Hope this helps you with your question. Don’t hesitate to ask here in Brainly.</span>

6 0
3 years ago
What is extrapolation?
bixtya [17]

Answer:

A. Predicting data that fall beyond a known data point

Explanation:

Extrapolating is unreliable because you are predicting data outside of the data range - anything could happen for the data to stop following the trend or pattern

8 0
3 years ago
1. Calculate the [H] in a solution that has a pH of 9.88.
Olenka [21]
The answer to the question is D.
5 0
3 years ago
Read 2 more answers
the position-time graph shows the motion of four people. label the lines on graph need on the motion description in this table.​
sertanlavr [38]
Line 1: straight horizontal line
Line 2: straight line at a slope
Line 3: exponential growth curve
Line 4: the topmost curve (the one that initially increases but then starts levels out)
3 0
2 years ago
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