(2) an isotope (4) a compound
Any substance composed of two or more elements that are chemically combined in a fixed proportion is known as a Compound. Thus, it's D.
Elements may be defined as any substance that cannot be disintegrated into more superficial substances by standard chemical processes.
In chemistry, an isomer may be defined as those molecules which the same molecular formulas, but different arrangements of atoms.
An Isotope may be defined as an atom that bears the same atomic number and chemical identities but possesses a different atomic mass.
A solution may be defined as a homogeneous mixture of one or more solutes disbanded in a specific solvent.
Therefore, the correct option for this question is D.
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base
hydronium ion
hydroxide ion
Answer : Option A) Acid
Explanation : Any substance that yields a hydrogen ion when placed in a water solution is called an acid.
According to Arrhenius theory of Acids and Bases, Acids are those substances which on dissociation in solution generates ions. Whereas a Base is a substance that dissociates in the solution to produce ions.
Answer:
the answer is acid.
Explanation:
(2) C4H6 (4) C8H4
Answer:
3) C4H8
Explanation:
Castle learning
b. oxidation
c. decomposition
d. none of the above
Answer:
Option (A)
Explanation:
Radioactivity is defined as a process in which an unstable atomic nucleus decays continuously and after a specific period of time changes into a much more stable element. During this time of decay, the nucleus emits charged particles (energy) which are known as the α, β and γ particles. These are often emitted in the form of electromagnetic energy and are very dangerous to health.
The radioactive elements decay at a certain rate which is commonly known as the half-life. Half-life is basically defined as the time required by a radioactive substance to decay half of its initial composition.
Thus, the correct answer is option (A).