It is basically lead oxide.. and sometimes called plumbic oxcide
it is black in colour
hope it helped
Answer:elastic is stretchy Kinect it is movement and gravitational is vertical
Explanation:
The Thiele tube which is look like a triangle, used for the determination of melting and boiling point of the solid and liquid sample respectively. The tube consists of high viscous oil. The mouth of the triangle tube consists the thermometer and the sample through a rubber stopper. The tube is always heated in low flame as the heating mechanism of the oil is through convection current process, in which the molecules of the oil heated passes through out the bulk to make a uniform heat of the liquid. The uniform heat of the liquid is necessary to determine the exact melting point of the solid. Also the low heating rate is compulsory so that the rate of convection current be slow. The high heating rate may cause fast convection in the oil and the hot oil can spill out from the tube and may cause an accident.
Answer:
Multiply 3 by Avogadro's number.
Explanation:
The mole can be defined as the amount of a substance that contains Avogadro’s number of particles, 6.02 x 10²³.
For elementary particles:
Number of particles=
number of moles x 6.02 x10²³
From the question,
Number of moles = 3moles
Number of particles = 3 x 6.02 x10²³
A double bond consists of one sigma bond and one pi bond.
Therefore Option C is the correct answer.
<h3>What is a Double Bond ?</h3>
A bond in which 4 electrons are shared between a [pair of atoms is called a double bond , higher amount of energy is required to break a double bond.
A double bond consists of one sigma bond and one pi bond.
Therefore Option C is the correct answer.
To know more about Double Bond
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