3 years ago

How do you think the invention of the microscope influenced the cell theory?

1 answer:

3 0

Since cells are hard to see the microscope helped them see. scientist were able to actually see cells in tissues placed under the microscope.

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Which of the following elements is very reactive and needs to gain one electron to have a full outermost shell?

NISA [10]

Iodine has 7 valence electrons. It needs therefore only 1 electron to be stable this is why it is so reactive.

4 0

3 years ago

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Chlorine forms a number of oxides with the following oxidation numbers: 1, 3, 4, 6, and 7. These compounds are stable and neutra

SashulF [63]

Answer:

$Cl_2O$ , $Cl_2O_3$ , $ClO_2$ , $ClO_3$ , $Cl_2O_7$

Explanation:

Empirical formula of the compound is the simplest ratio of elements present in the compound.

Empirical formula of compounds of chlorine with oxygen is as follows:

Compounds in which oxidation state of Cl is +1

$Cl_2O$

Compounds in which oxidation state of Cl is +3

$Cl_2O_3$

Compounds in which oxidation state of Cl is +4

$ClO_2$

Compounds in which oxidation state of Cl is +6

$ClO_3$

Compounds in which oxidation state of Cl is +7

$Cl_2O_7$

8 0

3 years ago

Name 2 things that travel well through metal?

MArishka [77]

Answer:

Heat, electricity x

Explanation:

Hope this helps! :) x

5 0

3 years ago

In Thomson's plum pudding model the mass of the atom is in the A.electrons. B.matter between the electrons. C.nucleus. D.proton

balu736 [363]

A electrons is the best choice!

6 0

4 years ago

Read 2 more answers

GET IT RIGHT FOR BONUS

storchak [24]

Answer:

Sand

Explanation:

with salt distillation will work, heat the solution and collect the water in a seperate beaker

With sugar you do the same, boil away the water and collect the water vapour, you'll be left with sugar in the original container and water if you collected it

Use a fraction of column and heat the solution, the alcohol will be seperated out

Sand is the only one that uses mechanical filtration

5 0

3 years ago