Answer:
the heat can be spread and store up the heat and make the temperature go higher
Explanation:
hope it helps?????
Not totally sure, but I think it’s A.
Answer:
Cu
Explanation:
We can use oxidation numbers to figure out what is happening with the electrons.

The oxidation number of Cu increases from 0 to +2 in Cu(NO₃)₂. The copper has gained two positive charges, so it has lost two electrons. It has been oxidized, so it is the reducing agent.
NO₃⁻ is wrong. The oxidation number of N decreases from +5 in NO₃⁻ to +4 in NO₂, so it has been reduced. It is the oxidizing agent.
Cu(NO₃)₂ and NO₂ are wrong. They are the products of the reaction. They cannot be either oxidizing or reducing agents in this reaction
Answer: The bond between them is covalent bond.
Explanation: There are 2 types of bonds present:
1. Covalent bond: This bond is present when there is sharing of electrons between two elements. This bond is prominent in the bonding of two non-metals.
2. Ionic bond: This type of bond is formed when there is a complete transfer of electrons from one element to another element. In this bonding one element is always a metal and another is a non-metal.
We are given that a carbon atom is forming two bonds with hydrogen and rest two with carbon atoms. Carbon and hydrogen both are non-metals and hence, the bonds between them will be purely covalent in nature.
So, the bond between two carbon atoms is covalent bond.