You use energy to heat your home. What ultimately happens to the energy that you pay for in your heating bill?
1. The energy escapes your home and heats
the outside.
2. The energy heats your home.
3. The energy disappears as it never exists.
4. The energy changes to mass.
Answer:
Atom can bond together either by ionic bond, covalent bond, co-ordinate covalent bond.
Explanation:
a] The three types of chemical bonds are:
i) Ionic Bond
ii) Covalent Bond
iii) Co-ordinate Covalent Bond.
i) Ionic Bond: This bond happens between a metal and a non-metal due to electrostaic force which occur between two opposite charge ions. In this electron is given by electropositive atom to electronegative atom to gain positive charge. Eg: NaCl.
ii) Covalent Bond: Here, the electrons are shared among the two elements which can even be of the same species. Eg: Carbon-Carbon (C-C) covalent bond, N2.
iii) Co-ordinate Covalent Bond: It is a covalent bond between two atoms but unlike Covalent Bond, in this, the shared pair of electrons come from the same atom. Eg: The H+ in the NH4+ is attached to NH3 through a co-ordinate covalent bond.
"gig..." means a billion of something, or 10^9. In binary hardware, it's actually 1,073,741,824 bytes. That's 2^30.
Answer:
6227.866 N
Explanation:
F = G . m(goku) . m(planet) / d²
F = 6.674 x 10-¹¹ x 62 x 1.458 . 10¹⁵ / 31²
F = 6227.866 N
Answer: A
Explanation:
the second technician is wrong because ptc coolers are not present in the ac uint in cars they are called ptc heaters
