Answer these questions:
(a)
(b)
(c)
symbols?
What is a solid? Write its
Give reasons.
(b) Water is a compound.
(d) Iron is an element.
(a) Melting ice is a physical change.
(c) Burning sugar is a chemical change.
(e) Shell of an atom is positively charged. (f) An atom is neutral naturally.
(g) Nucleus of an atom is negatively charged.
Enlist the properties of a liqu
Answers
Answered by
0
Answer:
mark me a brainliest answer
Answered by
0
Answer:
a) When intermolecular force is very strong and kinetic energy is very less, the intermolecular space is reduced and matter exist as a solid.
b) A substance composed of two or more elements, chemically combined in a definite proportion.
c) Yes, burning sugar is a chemical change because burning is usually defined as the the rapid combination of a substance with oxygen.
e)No, shell of an atom is negatively charged.
f) An atom is electrically neutral because it has the same number of protons as it does electrons, plus some number of neutrons depending on the isotope.
g) Nucleus of an atom is positively charged.
Similar questions