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2 years ago

When should a line graph be used

Chemistry

1 answer:

olga_2 [115]2 years ago

6 0

Answer:

<em>Line graphs are used to track changes over short and long periods of time. When smaller changes exist, line graphs are better to use than bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group.</em>

You might be interested in

Andi performs the calculation that is shown below.

Sergio039 [100]

Answer: -

A) 3.59

Explanation: -

The number of significant figures in 2.06 = 3

The number of significant figures in 1.743 = 4

The number of significant figures in 1.00 = 3

During multiplication of significant figures, the number of significant figures in the answer would be the smallest value that is 3 in this case.

2.06 x 1.743 x 1.00 = 3.5908.

The answer to 3 significant figures is

2.06 x 1.743 x 1.00 = 3.59

Thus, Andi when performs the calculation that is shown below.

(2.06)(1.743)(1.00) the answer be reported using the correct number of significant figures as A) 3.59

8 0

2 years ago

Read 2 more answers

How does wax dissolve in kerosene

Alona [7]

Answer:

Petroleum fractions of this kind are commonly known as kerosene. We find that such a mixture of acetone and kerosene will dissolve parafiin wax more eifectively and rapidly than any other solvent hitherto known, and that the wax, when dissolved it will remain in liquid condition indefinitely.

Explanation:

i think this is the answer .

please mark as brainliest

6 0

2 years ago

Titration is a type of experiment that can be performed to investigate a neutralization reaction. The equivalence point is when

Rom4ik [11]

Answer:

74.0 mL

Explanation:

In the equivalence point we have:

$n_{a} = n_{b}$

Where:

$n_{a}$ is the number of moles of the acid

$n_{b}$ is the number of moles of the base

$M_{a}V_{a} = M_{b}V_{b}$

Where M is the concentration and V is the volume

Hence the volume of the base is:

$V_{b} = \frac{M_{a}V_{a}}{M_{b}} = \frac{1.50 M*43.6 mL}{0.884 M} = 74.0 mL$

Therefore, is needed 74.0 mL of the potassium hydroxide solution to reach the equivalence point.

I hope it helps you!

4 0

3 years ago

Make a neutral Beryllium atom by adding protons, neutrons and electrons. Now, what would you do to make a

Alenkinab [10]

Answer:

4 protons, 5 neutrons, 4 electrons to have the neutral Be atom

the only way to make a negative Be is to have more than 4 electrons

Explanation:

Make a neutral Beryllium atom by adding protons, neutrons and electrons. Now, what would you do to make a

beryllium atom with a negative charge?

Be has an atomic number of 4, an atomic mass 9

its atomic number tells us it has 4 protons, with a +4 charge

its atomic mass = neutrons + protons, so it has 5 neutrons with no charge

its neutral atom will have 4 electrons each with a negative charge to balance the +4 total proton harge.

4 protons, 5 neutrons, 4 electrons to have the neutral Be atom

to make a negative Be species, it still must have an atomic number of 4,

or it is not Beryllium

so the only way to make a negative Be is to have more than 4 electrons

3 0

2 years ago

Which of the following is a definition of a base? O a. behaves as a catalyst. O b. accepts H ions from acids. Oc. turns cloudy w

yan [13]

Answer: b. accepts $H^+$ ions from acids

Explanation:

According to Arrhenius concept, a base is defined as a substance which donates hydroxide ions $(OH^-)$ when dissolved in water and an acid is defined as a substance which donates hydronium ions $(H_3O^+)$ in water.

According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates $H^+$ ions and a base is defined as a substance which accepts $H^+$ ions.

$NH_3+H_2O\rightarrow NH_4^++OH^-$

Here water is donating $H^+$ ions, and thus act as acid and ammoia $NH_3$ is accepting $H^+$ ions from water and thus is a base.

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.

Thus base is a substance which accepts $H^+$ ions from acids.

5 0

3 years ago