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pickupchik [31]
3 years ago
8

Design a process for separating a mixture of salt, iron filings, and sand

Chemistry
1 answer:
Alex Ar [27]3 years ago
4 0
<span>Gather your materials. Gather the sand, salt and iron filing mixture; a magnet; a paper towel; a cup of warm water; an empty cup; and a piece of filter paper.Use the magnet to remove the iron. ...Use warm water to dissolve the salt. ...<span>Remove the sand from the salt water.</span></span>
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What is a displacement reactions​
Alisiya [41]

<h2><u>Question</u><u>:</u>-</h2>

\textsf{what is a displacement reactions?   }      

<h2><u>Answer</u><u>:</u></h2>

\large \underbrace{ \underline{ \sf Displacement \: reaction}}

The reaction in which more reactive element replace a less reactive element from its compound is called displacement reaction.

Ex:-

\bold{\large Zn+HCl \longrightarrow ZnCl_2+H_2}

6 0
3 years ago
Read 2 more answers
Helppp plzzz will give brainlist
Maslowich
4. A
because PbCl2 is an ionic compound and it's solid, so it's a substance.
It cannot be mixture, because it's a pure molecule.
5. D
despite that both substances are gases, colorless they are different molecules, so they should have different either chemical and physical properties
6. C
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5 0
2 years ago
g Select the correct statements. I. Reduction is the loss of electrons, and oxidation is the gain of electrons II. Reduction is
Karolina [17]

<u>Answer:</u> The correct answer is Option D.

<u>Explanation:</u>

Reduction reaction is defined as the reaction in which a substance gains electrons. Here, the oxidation state of the substance decreases.

X^{n+}+ne^-\rightarrow X

Oxidizing agents are the agents that helps in the oxidation of other substance and itself gets reduced. These agents undergoes reduction reactions.

Oxidation reaction is defined as the reaction in which a substance looses its electrons. Here, oxidation state of the substance increases.

X\rightarrow X^{n+}+ne^-

Reducing agents are the agents that helps in the reduction of the other substance and itself gets oxidized. These agents undergoes reduction reactions.

Oxidation state is the number which is given to an atom when it looses or gains electron. It is written as a superscript. In a compound, the total charge is equal to the sum of the charges of all atoms in that compound. <u>For Example:</u> In MnO_4^-, manganese has +7 oxidation number and oxygen has -2.

So, the charge on the compound = [=7+(4\times (-2))]=-1

Hence, the correct answer is Option D.

6 0
3 years ago
What is the result at the end of meiosis II?
VMariaS [17]

Answer:

B.) two diploid cells

6 0
3 years ago
What process in the carbon cycle takes carbon out of air?
Veronika [31]
It is photosynthesis 
<span>
photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct, hope it helps</span>

7 0
2 years ago
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