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notka56 [123]
4 years ago
13

What is the total magnification if we using objective lens 4x and our eyepiece (ocular) lens is 10x

Chemistry
1 answer:
Vladimir79 [104]4 years ago
5 0
Answer: 40x
4x times 10x equals 40x
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Name the separation technique used to separate the constituents of the mixture of miscible liquids. Draw a labelled diagram of t
julia-pushkina [17]

Answer:

           Distillation

Explanation:

                   Miscible solvents are separated from each other through a process called as Distillation. This technique works on the principle of difference in the boiling point of the solvents that are forming the miscible solution.

Example:

             Water and Ethanol are two miscible solvents. They have different boiling points.

                Ethanol  =  78.37 °C

                 Water  =  100 °C

In a experimental setup attached below, water and ethanol mixture is taken in a round bottom flask and heated on a hotplate. Ethanol having less boiling point than water boils first and evaporates. The Ethanol vapors are condensed as they passes through the condenser. In this way the ethanol is separated first and water having greater boiling point is left behind.

8 0
4 years ago
A grapefruit has a weight on earth of 4.9 newtons. what is grapefruit's mass?
Julli [10]
The force of gravity is the force with which massively large objects such as the earth attracts another object towards itself. All objects of the earth exert a gravity that is directed towards the center of the earth. Therefore, the force of gravity of the earth is equal to the mass of the object times acceleration due to gravity.   

<span>F = ma </span>
<span>4.9N = m (9.8 m/s^2), note that N (newtons) = kg-m/s^2 </span>
m = 0.5 kg 
<span>The mass of the object is 0.5kg.</span>
4 0
3 years ago
Write the net ionic equation for this reaction occurring in water: ammonium fluoride and magnesium chloride are mixed to form ma
MAXImum [283]

Correct answer: 3. Mg^{2+}(aq) + 2 F^{-}(aq) --> MgF_{2}(s)

The given chemical reaction is between ammonium fluoride and magnesium chloride to form magnesium fluoride and ammonium chloride.

The balanced chemical equation representing the reaction will be,

2NH_{4}F (aq) + MgCl_{2}(aq) -->MgF_{2} (s) + 2NH_{4}Cl (aq)

The complete ionic equation for the reaction: All the compounds soluble in water (aqueous) will split into ions, MgF_{2} will not split into ions as it is insoluble in water.

2 NH_{4}^{+}(aq) + 2 F^{-}(aq) + Mg^{2+}(aq) + 2 Cl^{-}(aq) --> MgF_{2}(s) + 2 NH_{4}^{+}(aq) + 2 Cl^{-}(aq)

The net ionic equation will be:

Mg^{2+}(aq) + 2 F^{-}(aq) --> MgF_{2}(s)

Here the spectator ions are NH_{4}^{+} and Cl^{-}


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3 years ago
I need help asap please help me
poizon [28]
I think the correct answer is traits. Please brainiest me! :)
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What is the valence of Hydrogen, Oxygen, Nitrogen, Chlorine, Carbon and Silicon
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