Answer: These celestial bodies are composed of rock or gas and are named after ancient deities.
Explanation:
Earth is the THIRD planet from the Sun and is capable of sustaining life for various organisms.
VENUS ranks as the second planet in our solar system and derives its name from the Roman goddess associated with love and beauty.
MARS, the fourth planet, gets its name from the Roman goddess of war.
Hence, Venus and Mars are NEIGHBORS to EARTH.
(c) Cu + S → CuS is classified as a redox reaction
Explanation:
The following reactions are presented:
(a) K₂CrO₄ + BaCl₂ → BaCrO₄ + 2 KCl
(b) Pb²⁺ + 2 Br⁻ → PbBr₂
(c) Cu + S → CuS
Reaction (c) represents a redox reaction, as the oxidation states of the elements are changing. In this case:
Cu + S → CuS
In its elemental form, Cu has an oxidation state of 0, while in CuS (copper sulfide), its oxidation state changes to +2.
Similarly, S in its elemental form has an oxidation state of 0 and is -2 in CuS (copper sulfide).
Learn more about:
redox reactions
The change in temperature can be expressed as:
By substituting in the known values, we arrive at:
Thus, we obtain the required answer.
Answer:
The temperature difference is 293.15 Kelvin.
Explanation:
The provided information:
The temperature difference between the two matters is 20°C
We need to determine this difference in Kelvin =?
To solve this;
Using the formula:
0°C +273.15
Now substituting the values in place of 0.
20°C + 273.15 = 293.15 K
Hence, the temperature differential between the two samples is 293.15 K.
I hope you can decipher it and that it's also accurate. Wishing you all the best.
