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BaLLatris [955]
4 years ago
8

What is the difference between a line graph, circle graph, and bar graph?What is the difference between a line graph, circle gra

ph, and bar graph?
Chemistry
2 answers:
natima [27]4 years ago
5 0
Line graphs can also be used to compare changes over the same period of time for more than one group. Pie charts are best to use when you are trying to compare parts of a whole. They do not show changes over time. Bar graphs are used to compare things between different groups or to track changes over time.
Ivanshal [37]4 years ago
3 0

Answer:

the line is big

Explanation:

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Write the symbol for every chemical element that has atomic number greater than 70 and atomic mass less than 185.2
egoroff_w [7]

Answer:

HF...Ta... W....Lu...

4 0
3 years ago
Which two mantle hot spots are located at mid-ocean<br> ridges?
Darya [45]

Answer:

This region of thick, hot crust and mantle extends 1,300 kilometers north and south of the Iceland hotspot and some 1,000 kilometers north and south of the Azores hotspot. Together, the two hotspots appear to be feeding a huge supply of magma to nearly the entire northern segment of the Mid-Atlantic Ridge.

Explanation:

please give me a heart

7 0
3 years ago
What is the conecntration of Fe3 and the concentration of No3- present in the solution that result when 30.0 ml of 1.75M Fe(No3)
zvonat [6]

Answer:

[Fe^{+3}]=0.700 M

[NO_{3}^{-}]=2.10 M

Explanation:

Here, a solution of Fe(NO₃)₃ is diluted, as the total volume of the solution has increased. The formula for dilution of the compound is mathematically expressed as:

C_{1}. V_{1}= C_{2}.V_{2}

Here, C and V are the concentration and volume respectively. The numbers at the subscript denote the initial and final values. The concentration of Fe(NO₃)₃ is 1.75 M. As ferric nitrate dissociates completely in water, the initial concentration of ferric is also 1.75 M.

Solving for [Fe],

[Fe^{+3}]=\frac{C_{1}.V_{1}}{V_{2} }

[Fe^{+3}]=\frac{(1.75).(30.0)}{45.0+30.0 }

[Fe^{+3}]=0.700 M

For [NO₃⁻],

There are three moles of nitrate is 1 mole of Fe(NO₃)₃. This means that the initial concentration of nitrate ions will be three times the concentration of ferric nitrate i.e., it will be 5.25 M.

[NO_{3}^{-}]=\frac{C_{1}.V_{1}}{V_{2} }

[NO_{3}^{-}]=\frac{(5.25)(30.0)}{30.0+45.0 }

[NO_{3}^{-}]=2.10 M

7 0
3 years ago
Which forensic scientist is, in part, responsible for the very specific evidence collection guidelines that exist in an effort t
Agata [3.3K]

D.) Edmond Locard. He formulated the basic principle that there will be a transfer of material if one object touches another. This material may contaminate a specimen and make it useless as forensic evidence.

“A.) Leone Lattes” is <em>incorrect</em>. He developed a method for <em>blood typing</em> that relied on detection of the specific antibodies.

“B.) Mathieu Orfila” is <em>incorrect</em>.  He worked to make <em>chemical analysis</em> a routine part of forensics.

“C.) Hsi Duan Yu” is <em>incorrect</em>. It is a 13th century Chinese <em>book </em>that many people consider to be the first known guide to forensic pathology.

5 0
3 years ago
Chloroform, CHCl3, reacts with chlorine, Cl2, to form carbon tetrachloride, CCl4, and hydrogen chloride, HCl. In an experiment 2
erastovalidia [21]

Answer:

Chloroform= limiting reactant

0.209mol of CCl4 is formed

And 32.186g of CCl4 is formed

Explanation:

The equation of reaction

CHCl3 + Cl2= CCl4 + HCl

From the equation 1 mol of

CHCl3 reacts with 1mol Cl2 to yield 1mol of CCl4

From the question

25g of CHCl3 really with Cl2

Molar mass of CHCl3= 119.5

Molar mass of Cl2 = 71

Hence moles of CHCl3= 25/119.5 = 0.209mol

Moles of Cl2 = 25/71 = 0.352mol

Hence CHCl3 is the limiting reactant

Since 1 mole of CHCl3 gave 1mol of CCl4

It implies that 0.209moles of CHCl3 will also give 0.209mol of CCl4

Mass of CCl4 formed = moles× molar mass= 0.209×154= 32.186g

6 0
4 years ago
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