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3 years ago

Using methyl ,phenolphthalein and litmus name an acid

Chemistry

1 answer:

frozen [14]3 years ago

3 0

Answer:

These are two types of indicators which show a solution is either an acid a natural or an alkali solution

Explanation:

Hope this helps :)

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Which option is a key point of cell theory? Cells can repair neighboring cells, but not themselves.Cells can repair neighboring

Darya [45]

Answer:

Cells are the basic structural unit of all living organisms.

Explanation:

Hope this helps, but i'm unsure if it would be multiple choice or not.

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3 years ago

Cells with nuclei belong in the domain Archaea Bacteria Eukarya Protists

svet-max [94.6K]

Eukarya cause all cells with nuclei are considered eukaryotic

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3 years ago

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Colin decided to investigate soil erosion by water. He measured rates of erosion on

anygoal [31]

Answer:

i just had a test on this with 2 attempts and got it wrong on both but i do know that the answer is not...

the steepness of the models hillside

the rate of erosion on the hills

so the answer is either...

the amount of water sprayed on the hills

the type of material used to construct the model hills

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Explanation:

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3 years ago

Obtaining crude oil for refining is an example of

Tems11 [23]

Answer:

B: extractive occupation

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3 years ago

A chemist prepares a solution of iron chloride by measuring out 0.10 g of FeCl2 into a 50. mL volumetric flask and filling to th

Tanya [424]

Answer: The molarity of anions $(Cl^-)$ in the solution is 0.0316 M

Explanation:

To calculate the molarity of solution, we use the equation:

$\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}$

We are given:

Given mass of iron (II) chloride = 0.10 g

Molar mass of iron (II) chloride = 126.75 g/mol

Volume of solution = 50 mL

Putting values in above equation, we get:

$\text{Molarity of iron (II) chloride}=\frac{0.10\times 1000}{126.75\times 50}\\\\\text{Molarity of iron (II) chloride}=0.0158M$

1 mole of iron (II) chloride produces 1 mole of $Fe^{2+}$ ions and 2 moles of $Cl^-$ ions

So, concentration of chloride ions (anions) in the solution = $(2\times 0.0158)=0.0316M$

Hence, the molarity of anions $(Cl^-)$ in the solution is 0.0316 M

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3 years ago