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4 years ago

Crystal lattice definition

1 answer:

5 0

A geometric arrangement of the points in space at which the atoms, molecules, or ions of acrystal occur. Also called space lattice. Hope this helps

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Explain how a woman gets pregnant

bazaltina [42]

A woman and a male have sex. The man ejaculates sperm into the females uterus. If one attaches to the woman’s eggs, it will fertilize the egg and impregnate that woman. If more than one sperm attached to an egg that’s how twins are made

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3 years ago

Read 2 more answers

HEY ITS E AGAIN HELP ITS A TEST

valentina_108 [34]

Answer:

i am not 100% shure but the wind speed has little to effect it so a and b are not the answer so i think the answer is D

Explanation:if i got this wrong im sorry it has bin a wile since i answered a question like this.

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3 years ago

The mass of a block is 12 g and the volume is 6 ml. Calculate the density of the block.

HACTEHA [7]

Answer:

According to mass and volume, block density is 2 g/ml

Explanation:

Density is a measure, usually used in physics and chemistry, that relates the mass and volume of a solid or compound.

In general terms, the density is directly proportional to the mass, and inversely proportional to the volume, so increasing the mass will also increase the density.

The formula used to calculate the density is

ρ = $\frac{m}{V}$

Therefore, according to the mass and density of the block

ρ = $\frac{12}{6}$ = 2g/ml

Being the density of the block equal to 2 g/ml.

The other options are not possible, because the values given do not correspond to the result of the equation.

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3 years ago

The final charge on each of the three separated spheres in part (b) is +3.0 μC. How many electrons would have to be added to one

marishachu [46]

Answer:

$1.873\times 10^{13}$ electrons should be added to one of these spheres to make it electrically neutral.

Explanation:

Total charge on each sphere = +3.0 μC = $3\times 10^{-6} C$

$1 \mu C=10^{-6} C$

In order to neutralize the positive charge equal magnitude of negative charge is to be added.

Total charge electrons, Q= -3.0 μC = $-3\times 10^{-6} C$

Number of electrons = n

Charge on a single electron, e = $-1.602\times 10^{-19} C$

Q = n × e

$-3\times 10^{-6} C=n\times (-1.602\times 10^{-19} C)$

$n=\frac{-3\times 10^{-6} C}{-1.602\times 10^{-19} C}=1.873\times 10^{13}$

$1.873\times 10^{13}$ electrons should be added to one of these spheres to make it electrically neutral.

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3 years ago

Select three parts of a simple electrolytic cell and explain their functions in the space below.

kotegsom [21]

A cathode is the location in an electrolytic cell where reduction reactions take place.

An anode is the location in an electrolytic cell where oxidation reactions occur.

An electrolyte solution is any substance containing free ions that make the substance electrically conductive.

An external electrical energy source like a battery or a transformer is used to drive the non-spontaneous reaction.

8 0

3 years ago