Answer:
Copper is a reddish-brown metal that is easily stretched to make wires. These characteristics are examples of Dhybral (physical/chemical) properties of copper.
Explanation:
When copper metal is heated in concentrated nitric acid, the copper dissolves to form a deep blue solution, and a brown gas is released from the acid.
Mos commonly 2 elements combine.
examples: H2, O2
Answer:
https://time.com/worlds-most-dangerous-room/
Explanation:
Answer: A resource which we get naturally from the enviornment such as, air water, soil etc. is known as natural resources. Natural resources can be categories on the basis of renewability and it is of two types; renewable and non-renewable.
A natural capital is the stock of natural resources; which includes soil, air and all the living organisms present on this planet
Answer:
Explanation:
Latent heat of fusion is the amount of heat required to convert 1 mole of solid to liquid at atmospheric pressure.
If is used to melt = 1 mole of solid
1 kJ of energy is used to melt =
Now if molar mass of solid is x g/mol
Then mass of solid will be =