Answer:
Melting is a physical change with no change in temperature of the substance while when the object is set on fire, its temperature changes.
Explanation:
Melting cause physical change in any substance. The temperature of the substance remain same but the physical property changes i.e in melting substance changes its state from solid to liquid.
However, in case of setting a substance on fire the temperature changes along with the state of the substance.
Ne because it it just a regular element (neon)
Answer:
H2CO3,HCl
Explanation:
the rest are not acids but I arrange the acids based on their number of hydrogen
The answer is baking a cake.
Sodium (Na) is atomic number 11, so it has 1 valency
While Nitrate (NO₃) has valency 1
Sodium has an extra electron while nitrate needs an extra electron, sodium gives its electron to nitrate and forms a bond,
NaNO₃ (Sodium nitrate)
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