Which diagram would this be?

Vika [28.1K]

Answer:

All matter is made up of tiny particles called atoms. Atoms are made up of three subatomic particles known as proton, neutron and electron. Protons and neutrons are located in the nucleus.

The nucleus is dense and takes up very little space within the atom. All protons have a positive charge and have a mass of about 1 amu. All neutrons have no charge or are neutral and have a mass of about 1 amu.

Electrons are located in the area known as electron cloud. Electrons orbit around the nucleus and have a negative charge

4 0

3 years ago

Arrange the eluting power of the listed solvents in normal-phase chromatography. The highest eluting power solvent is number 1;

BabaBlast [244]

Answer:

Explanation:

Part a

Normal Phase Chromatography

In the normal phase chromatography, the eluting power is highest for the solvent which has the highest polarity.

So from the given solvents as Methanol, Dichloromethane and Ethyl Acetate

the relative polarities are given as

Methanol=0.762

Dichloromethane (methylene chloride)=0.309

Ethyl Acetate=0.228

So the numbers are given as

Methanol :1

Dichloromethane (methylene chloride):2

Ethyl Acetate:3

Reverse Phase Chromatography

In the reverse phase chromatography, the eluting power is highest for the solvent which has the lowest polarity.

So from the given solvents as diethyl ether , water and toluene

the relative polarities are given as

Diethyl ether=0.117

Water=1.0

Toluene=0.099

So the alphabets are given as

Toluene :A

Diethyl ether: B

Water:C

3 0

3 years ago

If sock type A is pulled first, sock type B second, and sock type C third, the fourth sock type must match one of A, B, or C.

alexandr1967 [171]

Answer:

a

Explanation:

sock type a is first then other sock types

5 0

3 years ago

A wooden boat is discovered just south of the Graet Pyramid in Egypt had a Carbon-14 content of approximately 25% of that found

wolverine [178]

Because 25% is half of 0.5 and the half life of ${}^{14}\text{C}$ is given as 5,715, the time it takes to reach this amount should just be double the half life: 11430 years.

However, in other cases the problem may not have easy numbers, so below is a more mathematical approach.

The half life formula is $A=A_0*(\frac{1}{2} )^{\frac{t}{h} }$ .

Solving for t gives:

$t=\frac{h*\ln(\frac{A}{A_0} )}{\ln(\frac{1}{2} )}$

Given information:

$A=0.25A_0\\h=5715\text{ yrs}$

Plug in given values and solve for t.

$t=\frac{5715 *\ln(0.25) }{\ln(\frac{1}{2} )} =11430 \text{ yrs}$

With correct significant figures, this would be 11000 years.

6 0

3 years ago

Compare the amount of copper predicted in part A with the amount measured in part B. What percentage of the predicted amount was

timofeeve [1]

Answer:

Explanation:

Because the experiment has an different independent and dependent variable and each part has a different result of what type of copper or what type of control you are using for you experiment.

PLS MARK BRAINLIEST IF CORRECT I WORKED HARD ON THIS ANSWER,HAVE A NICE DAY/NIGHT <3

4 0

3 years ago

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