Answer: Option (1) is the correct answer.
Explanation:
Carbon atoms are able to combine with its atoms resulting in formation of long chains. This property of carbon is known as catenation. Whereas carbon atom also has the property to combine with other atoms and results in the formation of long chains or rings.
On the other hand, oxygen, nitrogen, and fluorine does not form long chains or rings.
Thus, we can conclude that carbon is the element whose atoms can bond with each other to form long chains or rings.
Explanation:
In solids, molecules are held together due to strong intermolecular force of attraction between them. These molecules do not move past each other as they are fixed at their position. As a result, solids have definite shape and volume.
In liquids, molecules are less tightly held as a result the molecules are able to move and hence they slide past each other. Liquids do not have fixed shape and volume.
In gases, molecules are held by weak Vander waal forces. Therefore, they move rapidly from one place to another with more collisions.
Thus, we can conclude that liquid is the phase of matter which consists of particles that are held together but have the ability to flow past each other.
Answer:
A) Stratosphere
B) trosphere
C)mesosphere
D)thermosphere
Explanation:
D) thermosphere
Answer:
Gaseous matter
Explanation:
Hydrogen chloride gas is formed from the combination of volumes of hydrogen gas and chlorine gas in equal proportion. It is one of the hydrogen halides I.e a compound formed from the combination of hydrogen and halogens.
Hydrogen chloride gas is a colorless gas.
Both hydrogen gas and chlorine gas can be obtained through the electrolysis of brine in the chlor alkali process.
Cl2(g) + H2(g) → 2 HCl(g)
The combination is exothermic and thus heat is released to the surroundings. A construction called HCl burner is used to carry out the reaction because of the heat given off. The produced gas is then absorbed in water
Answer:
a) 1
Explanation:
got it right 100%
Answer:
20 milliliters
Explanation:
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(2) The atom’s radius decreases and the atom becomes a positive ion.
(3) The atom’s radius increases and the atom becomes a negative ion.
(4) The atom’s radius increases and the atom becomes a positive ion.
When an atom loses an electron, it becomes a positive ion and the radius of the atom decreases. The correct answer is option 2.
An atom is the basic unit of matter that consists of a nucleus, which contains positively charged protons and uncharged neutrons, surrounded by a cloud of negatively charged electrons.
Therefore, option 2. The atom’s radius decreases, and the atom becomes a positive ion is the correct answer.
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Answer:
When an atom loses an electron, the atom's radius decreases and the atom becomes a positive ion.