Answer:
a. pipette
Explanation:
The instrument used in the laboratory for measuring base is the pipette.
It is used to suck up the right amount of base for experimental purpose.
- The burette is used for measuring and holding the acid.
- The pipette is often used alongside a burette, conical flask and retort stand during a titration reaction.
- The pipette is a narrow cylindrical pipe usually made up of some special glass.
- It should be handled with caution as it is a very fragile device.
Answer:
The most appropriate answer would be option C.
Nonrenewable resources are the natural resources which are present in a limited amount on the planet.
It is because the rate of their utilization is way too faster than the rate of their formation in nature.
Examples may include coal, gas, petroleum et ctera.
Gas stove utilizes the energy of liquified petroleum gas to heat or cook the food which is a nonrenewable resource.
Answer:
If limestone reacts with limestone, it can turn into a limestone. The reason behind this formation is that, both substances have the same chemical and physical properties and molecules of limestone have a strong chemical bonds between them so it is difficult to separate them from each other.
The correct answer is (c) the moon' gravity
The moon's gravity causes oceans to bulge. The moon's gravitational power is responsible for the rising and falling tides.The moon affects the ocean on the sides of the planet facing and facing away from it which causes oceans to bulge away from the earth. On one side ocean bulges away from the earth as planet is being pulled towards the moon and on the other side the ocean bulges towards the moon. Bulges facing towards the moon is high tides and bulges not facing towards moon is low tides.
