Answer:
Compound are formed by <em><u> </u></em><em><u>Chemical </u></em><em><u> </u></em>Change।।
Answer:
- <u>True</u><u> </u>
- <u>B</u><u>.</u><u> </u><u>24</u><u> </u><u>hours</u><u> </u>
- <u>Light</u><u> </u><u>and</u><u> </u><u>Dark</u><u> </u>
- <u>A</u><u>.</u><u> </u><u>To</u><u> </u><u>spin</u><u> </u><u>on</u><u> </u><u>an</u><u> </u><u>Axis</u><u> </u>
- <u>True</u><u> </u>
- <u>Nearest</u><u> </u><u>P0INTS</u><u> </u>
- <u>B</u><u>.</u><u> </u><u>365</u><u> </u><u>days</u><u> </u>
- <u>True</u><u> </u>
- <u>A</u><u>.</u><u> </u><u>January</u><u> </u>
- <u>B</u><u>.</u><u> </u><u>July</u><u> </u>
- <u>Summer</u><u> </u>
- <u>B</u><u>.</u><u> </u><u>T</u><u>he tilt of the Earth on its axis</u>
- <u>True</u><u> </u>
- <u>¿</u><u>-</u><u>¿</u>
- <u>¿</u><u>-</u><u>¿</u>
- <u>B</u><u>.</u><u> </u><u>June</u>
- <u>A</u><u>.</u><u> </u><u>September</u><u> </u>
- <u>B</u><u>.</u><u> </u><u>December</u><u> </u><u>and</u><u> </u><u>March</u><u> </u>
Explanation:
Sorry yan lang alm but I hope it helps
<h2><u>#CARRYONLEARNING</u><u> </u></h2><h2><u>#STUDYWELL</u><u> </u></h2>
<span>Answer: an element and a compound.
An element is a pure substance formed by one kind of atoms (element).
A compound is a pure substance formed by several types of atoms(elements) that are connected by chemical bonds.
</span>
Answer:
2Cr³⁺(aq) + 3S²⁻(aq) ----> Cr₂S₃(s)
Explanation:
When aqueous solutions of chromium(III) chloride and ammonium sulfide are mixed together, chromium (III) chloride and ammonium sulfide undergoes a double displacement reaction to produce chromium (iii) sulphide as a precipitate and ammonium chloride which remains in solution.
The general equation of the reaction is given below:
2CrCl₃(aq) + 3(NH₄)₂S(aq) ----> Cr₂S₃(s) + 6NH₄Cl(aq)
The net equation of the reaction is given below:
2Cr³⁺(aq) + 3S²⁻(aq) ----> Cr₂S₃(s)
Bond length increases because single bond is longer than double bond and strength decreases