FIRST ONE IS SPRING ****
Second one is Buoyancy.
Answer:
The mass of an object is the same no matter where it is, but the weight of an object changes with the location of that object. For example, the weight of an object on the Moon is 1/6th that of the same object on Earth, while the mass of that object is exactly the same in both places.
Explanation:
Sited: https://howthingsfly.si.edu/ask-an-explainer/what’s-difference-between-mass-and-weight
Answer:
yes
Explanation:
it is not changing the chemical composition of paper, just the physical form. plz mark me brainliest
Answer: Option (b) is the correct answer.
Explanation:
Insulator are the substances which do not conduct electricity. It is known that metals are good conductors of electricity. Whereas non-metals do not conduct electricity.
Out of the given options, silver, and calcium is a metal that means they are good conductors of electricity and are not insulators.
On the other hand, silicon is a metalloid, that is, it shows properties of both metals and non-metals. Hence, it will also show conductivity.
Phosphorus is a non-metal and therefore, it does not conduct electricity. As a result, out f the given options it will act as the best insulator.
The electronic geometry for the carbonate ion, in CO₃²⁻ is trigonal planar, and molecular geometry will be trigonal planar.
The electronic geometry = Total number of atoms + lone pair around the central atom
= 3 atoms + 0 lone pair
= sp₂ (trigonal planar)
The molecular geometry = As there is no lone pair its geometry will be trigonal planar.
