How many valence electrons does aresenic ave.

777dan777 [17]

People use data tables and graphs in many financial careers and when looking at the statistics for something as simple as what they saw on the news, etc. When scientists use them, they’re both using them to see the numbers and the facts. They’re both able to use graphs and data tables to help them. They are different though because scientists use them for science related things like how much a tree grew in a year while everyday people use them to see the average amount of drop outs per year or something along those lines.

Data tables and graphs are very vital to a scientists job. They help them easily collect and organize information to where anyone can read it. It may not be absolutely necessary, but it’s something every scientist uses.

Any scientist doing any sort of research would use them. Whether they’re a biologist, geologist or whatever, they all use graphs and data tables to help them organize their research.

4 0

3 years ago

The emission spectrums are known for the elements below. Line spectra for boron, lithium, hydrogen, helium, potassium and unknow

Montano1993 [528]

Answer:

E

Explanation:

8 0

3 years ago

Read 2 more answers

Based on the electron configuration of the two

Lena [83]

Answer:

3:1

Explanation:

Lithium is a group 1 element. This means it would donate one electron to form the cation.

Nitrogen on the other hand is a group 5 element. It would accept 3 electrons to form the anion.

This means there has to be three lithium atoms, each donating an electron each to the nitrogen atom for a compound to be formed.

The formular for the ionic compound would be given as;

Li₃N

Hence the ration is 3:1

5 0

3 years ago

How do you convert Pa*mm^2 to Pa*m^2?

Elden [556K]

Answer:

$1 Pa\times mm^{2} =10^{-6}Pa\times m^{2}$

Explanation:

Pascal(Pa) : It is the SI unit of pressure.It is equal to 1 Newton per meter square(Pa = $N/m^{2}$ )

$Pa\times mm^{2}$ is the Unit of Force(Newton=N)

<u>Calculation,</u>

It is required to convert $mm^{2}$ to $m^{2}$ only, Pa is same in both so no need to alter Pa.

1 m = 1000 mm (see the image)

And,

1 mm = 0.001 m

$1 mm^{2} = 0.001\times 0.001 m^{2}$ (Squaring both side)

$1 mm^{2} = 0.000001 m^{2}$

$1 mm^{2} = 10^{-6}m^{2}$

So,

$1 Pa\times mm^{2} =10^{-6}Pa\times m^{2}$

3 0

3 years ago

3

Licemer1 [7]

Energy cannot be created nor destroyed, but it changes from one form to another. Hence, option C is correct.

<h3>What is energy?</h3>

Energy is the ability to do work.

In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time.

This law means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another.

Hence, option C is correct.

Learn more about energy here:

brainly.com/question/1932868

#SPJ1

5 0

2 years ago