Answer:
B. The material is cooler and denser.
Explanation:
The earth is made up of three layers, the crust, the mantle and the core. Each layer has different characteristics and temperatures, becoming warmer and less dense as it approaches the core.
Man has never reached the core of the earth, but the study of the internal structure of the planet is possible thanks to the studies of geophysicists, who are dedicated to the study of seismology. They observe the phenomena of seismic waves and rely on apparatus to define the characteristics of each layer.
Properties of a substance remain unchanged.
Composition of a substance is same as before.
Different atoms than before are introduced after the change.
The answer is the last option.
Answer:
2 ... and 1
Explanation:
Hope this is right / helps
Answer:
It could either be 1 or 2. Depending on the question.
Explanation:
a. Which compounds make good electrolytes?
b. Which compounds exhibit ionic bonding?
c. Which compounds have lower melting points?
d. Which compounds are more likely to be soluble
in water?
e. Which compounds are flammable?
Answer: organic compounds has made up of organic materials inorganic compounds are made up of inorganic materials.
organic compounds make good electrolytes
inorganic compounds exhibit ionic bonding
organic compounds lower melting points
Explanation:
of each other.
Answer: isotopes
Explanation: Isotopes are atoms of the same element having the same atomic number but different atomic masses. Atomic number of an element is the number of protons contained in the nucleus of an atom. Atomic mass is the sum of the protons and neutrons in the nucleus of an atom.
The difference in the atomic masses is due to the number of neutrons in the atoms. This isotopes have the same number of protons but different number of neutrons. The phenomenon whereby atoms of the same element have the same atomic number but different mass number is called isotopy.
Answer: The direct answer is that they are Isotopes of one another.
Explanation: