Answer : The correct answer is- citric acid and acetic acid.
Citric acid is a weak organic acid that is found naturally in different types of citrus fruits such as grapes, orange, berries, lemon.
It is used in food to give sour flavour and as a preservative ( such as in gems, pickles) to prevent the growth of bacteria.
Acetic acid is a second simplest carboxylic acid that is a weak organic acid. It is found naturally in fruits such as grapes, pineapple, strawberries. It is safe to eat if used in proper manner ( such as dilute acetic acid, which is vinegar, is used as preservative in food).
Answer: citric acid , acetic acid
Explanation: Acids are substances which when dissolved in water give ions.
The acids are of two types based on their origin:
1. Mineral acids: are inorganic compounds composed of different chemical element combinations. They are synthetically produced in labs and are usually strong. Example: ,
2. Organic acids: are organic compounds essentially composed of carbon and hydrogen atoms. They are found in nature and are generally weak. .
Citric acid is found in citrus fruits and acetic acid is found in vinegar and are safe to eat.
Answer:
A
Explanation:
at the same instant means in the same moment, same time thus A and B share the same starting time which is t=0
B. density=mass*volume
C. density=volume/mass
D. density=mass + volume
Answer:
My answer is A.
Explanation:
by using a density triangle, you would have to cover up the density and then it will show you, m over v. so that means you would have to divide.
Draw the incident ray so it is longer than the reflected ray.
Make the angle of reflection and the angle of incidence equal.
Switch the labels for incident ray and reflected ray.
Make the angle of incidence larger than the angle of reflection.
Answer:
Make the angle of reflection and the angle of incidence equal.
Explanation:
The law of reflection states that at the point of incidence on a smooth surface, the angle of incidence is equal to the angle of reflection, The incident ray, the normal and the reflected ray lie on the same plane.
Answer:
B. Make the angle of reflection and the angle of incidence equal
Explanation:
A motorcyclist is traveling east along a straight road. What is the velocity (in
meters per second) if it takes him 3 s to reach 60 meters? (Submit a number
response only!)
Answer:
20m/s
Explanation:
velocity=displacement/time
velocity=60/3
velocity=20m/s