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Sliva [168]
3 years ago
10

#5.) Explain why the rock cycle is referred to as a "cycle".

Chemistry
2 answers:
quester [9]3 years ago
8 0
Because it happens over and ver again
Natalka [10]3 years ago
5 0
The rock cycle is referred to as cycle because it repeats over and over again. The definition of cycle is a series of events that are regularly related in the same order. So with the rock cycle they stay in the same order and repeat.
Hope this helps :)
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Water exhibits a type of magnetism called ___________________ whereby in the presence of a strong magnetic field, the normally n
Lilit [14]

The answer is diamagnetism.  It is a significant mechanical effect that happens in all materials; when it is the only influence to the magnetism, the material is named diamagnetic. Quartz and water are samples of diamagnetic materials. The diamagnetic influence is usually unimportant in materials holding strong lasting magnetic moments.

5 0
3 years ago
20) Mg + O2 → MgO
jonny [76]

The given reaction Mg + O₂ → MgO is a type of Synthesis reaction. Hence option (1) is correct.

<h3>What is Synthesis reaction ?</h3>

Synthesis reactions are reactions that occur when two different atoms or molecules interact to form one molecule or compound.

It is also known as combination reaction

In the given reaction Mg and O combines with each other to form one product i.e, MgO. Hence, The given reaction Mg + O₂ → MgO is a type of Synthesis reaction. Thus, option (1) is correct.

Learn more about chemical reaction here ;

brainly.com/question/27948961

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7 0
2 years ago
Elements riddle: Without my next door neighbor, I wouldn’t be worth 6 cents. Who am I?
zalisa [80]
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7 0
3 years ago
Which chemical reaction falls under the study of electrochemistry?
disa [49]
The chemical reaction <span>b) Zn(s) + Cu^2+(aq) --> Zn^2+(aq) + Cu(s) falls under the study of electrochemistry as it involve ions dissolved in solution. these are electrolytic solutions capable of transferring eletrons. </span>
3 0
3 years ago
Read 2 more answers
How many grams of glycerine, C3H8O3, are needed to make 100. mL of 2.60 M solution?
Masteriza [31]

Answer:

the mass of the glycerine needed in the given solution is  23.92 g

Explanation:

Given;

molarity of the solution (C₃H₈O₃), C = 2.60 M

Volume of the solution, V = 100 mL = 100 x 10⁻³ L = 0.1 M

The molarity of a solution is given as follows;

Molarity = \frac{amount \ of \ solute \ (moles)}{volume \ of \ solution \ (L)} \\\\amount \ of \ solute \ (moles) = Molarity  \ \times volume \ of \ solution \ (L)\\\\amount \ of \ solute \ (moles) = 2.6 \times 0.1 \\\\amount \ of \ solute \ (moles) = 0.26 \ mole

The molecular mass of the given solution;

molecular mass = (12 x 3) + (8 x 1) + (16 x 3)

molecular mass = 92 g/mol

The mass of the glycerine needed in the given solution is calculated as follows;

reacting mass = amount of solute (moles)   x   molecular mass (g/mol)

reacting mass = 0.26 x 92

reacting mass = 23.92 g

Therefore, the mass of the glycerine needed in the given solution is  23.92 g

7 0
3 years ago
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