Answer:
Formula for sulfuric acid is H2SO4
Explanation:
Sulfuric acid is highly concentrated acid. It is known as king of chemicals. It is used in making of fertilizers, paints, dyes, detergents, etc.
H2SO4 is made in laboratory in different steps from burning of sulfur and oxygen. The sulfur is burned with air and oxygen is combined with it to form sulfur dioxide ( SO2).
Then SO2 is again mixed with oxygen in the presence of catalyst vanadium. It forms sulfur trioxide ( SO3). The sulfur trioxide is allowed to absorbed in water. The mixing of SO3 and H2O forms the sulfuric acid ( H2SO4).
It is highly concentrated and its dilution is decreased to some extent for selling.
Answer:
A cryptogram is a type of puzzle that consists of a short piece of encrypted text. Generally the cipher used to encrypt the text is simple enough that the cryptogram can be solved by hand. Substitution ciphers where each letter is replaced by a different letter or number are frequently used.
B. the hinge joint of the elbow
C. the joint between a metacarpal and the proximal phalanx
D. the ball-and-socket joint between the scapula and humerus
E. the plane joints between the carpal bones (wrist)
Answer:
B . The hinge joint of the elbow.
Explanation:
Uniaxial joint allows for motion in a single phase.
The uniaxial joint example from the given options is the joint of the elbow. A uniaxial joint allows for motion in one plane or axis only, like the joint of the elbow which allows primarily for flexion and extension.
The correct answer is option B: the joint of the elbow. A uniaxial joint is a type of synovial joint that allows for motion in one plane or axis only. Examples of uniaxial joints include joints, like the elbow or knee, and pivot joints, like the proximal radioulnar joint in the forearm. The elbow joint specifically is a joint because it allows movement primarily in one direction, that is, bending (flexion) or straightening (extension).
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The answer is simply: A the other person is too confusing...
lysosome
B.
cell wall
C.
cilia
D.
chloroplast