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yKpoI14uk [10]
3 years ago
5

During an experiment, iron powder and sulfur powder were mixed thoroughly and placed on a filter paper. When a magnet was moved

below the filter paper, the iron fillings stood up vertically as they were attracted by the magnet. The sulfur powder showed no change in position. Which of the following correctly justifies the observation? Iron and sulfur formed a compound; therefore, they lost their individual properties. Iron and sulfur formed a compound; therefore, they retained their individual properties. Iron powder and sulfur powder combined physically; therefore, they lost their individual properties. Iron powder and sulfur powder combined physically; therefore, they retained their individual properties.
Chemistry
2 answers:
Vedmedyk [2.9K]3 years ago
8 0

Iron powder and sulfur powder combined physically; therefore, they retained their individual properties.


sdas [7]3 years ago
8 0

Answer:

Iron powder and sulfur powder combined physically; therefore, they retained their individual properties.

Explanation:

Iron combines with sulfur physically as such there is no change in the individual chemical property of iron and sulfur. Iron has magnetic property and sulfur does not. So iron .gets attracted by the magnet and can be separated from sand. In a chemical process the reactants combine chemically to form a new product that has chemical properties distinct from the parent compounds. In a physical combination process no new chemical product is formed with distinct properties from the parent compound.  

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Consider the chemical equations shown here.
vichka [17]

P₄0₆_{s} + 20₂_{g}   ⇒    P₄0₁₀_{s}

Explanation:

The overall equation for the reaction that produces  P₄0₁₀ is :

P₄0₆_{s} + 20₂_{g}   ⇒    P₄0₁₀_{s}

Now let us derive this equation:

Given equations:

   P₄_{s} + 30₂_{g}  ⇒ P₄0₆_{s}  equation 1;

   P₄_{s} + 50₂_{g} ⇒  P₄0₁₀_{s}  equation 2;

To get the overall combined equation, the equation 1 must be reversed and added to equation 2:

            P₄0₆_{s} ⇒ P₄_{s} + 30₂_{g}   equation 3

                      +

            equation 2:

 P₄_{s} + 50₂_{g}  +    P₄0₆_{s}  ⇒  P₄0₁₀_{s}  +  P₄_{s} + 30₂_{g}  

cancelling specie that appears on both sides and removing excess oxygen gas on the reactant side gives;

   

                  P₄0₆_{s} + 20₂_{g}   ⇒    P₄0₁₀_{s}

learn more:

Net equation brainly.com/question/2947744

#learnwithBrainly

5 0
3 years ago
One half of the distance between the nuclei of two atoms bonded together by a single bond is known as
vodka [1.7K]
Answer is: <span>an atomic radius.

</span>The atomic radius<span> of a </span>chemical element<span> is a measure of the size of its atom.
</span>The atomic radius varies with increasing atomic number, but usually increases because of increasing of number of electrons.
The atomic radius decreases across the periods because an increasing number of protons, because <span>greater attraction between the protons and electrons.</span>
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When NaCl dissolves in water
slava [35]
The sodium ion becomes hydrated. when sodium chloride dissolves in water, the sodium and chloride ions and the polar water molecules are strongly attracted to one another by ion-dipole interactions
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3 years ago
how many atoms are contained in 2.70g of aluminum provided that 32g of sulphur equals 6.02 × 10^(23)atoms​
umka2103 [35]

Answer:

1.63 \times  {10}^{24}

one atom of an element = 6.02 \times {10}^{23} atom

The mass of one atom of sulphur = 32g

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so one atom of aluminium = 6.02 \times {10}^{23}

27g of AL = 6.02 \times {10}^{23} atom

2.70g of AL = X atoms

Then you cross multiply ........

and get the answer

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Which type of power can be used to reduce the production of carbon dioxide?
klasskru [66]

A. solar. Hope it helped!


8 0
3 years ago
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