Answer:
They take the form of heat.
Explanation:
Electromagnetic waves with wavelengths greater than 750 nm are infrared light.
They are not visible to human eyes, but we can feel them as heat on our skin.
B is wrong. It is UV light that causes skin cancer and sunburn.
C is wrong .Visible and UV light have shorter wavelengths.
D is wrong. Human eyes cannot see IR radiation
Answer:
The particle model does not take into account: the size and shape of particles. the space between particles.
Answer:
The correct answer is A an ionic bond is a bond between charged atoms,while a covalent bond is a bond between neutral atoms.
Explanation:
Ionic bond is formed between two atom that have huge difference in their electronegativity.The one atom loses electron thus becomes positively charged another atom receives that electron thus becomes negatively charged.
For example NaCl
Covalent bond is formed by the sharing and paring of electrons.
For example H2O
Answer: Covalent Bond
Explanation:
Covalent bond is the type of chemical bond between two atoms that are connected to each other by the sharing of two or more electrons. example is the bond between Dinitrogen
The answer is 3.25 x 10 -3 kg is not equal to 325 cg
