why water is known as polar covalent compound?
please Explain the graphical representation of Boyle's law.
how to balance equation in partial method
when steam is passed over red hot iron ,magnetic oxide of iron and hydrogen are obtained. "the reation between steam and red-hot is a Reversible reaction". what is meant by this statement?
cooking of food is a physical change or chemical change??why??
why magnetising a piece of iron is a physical change?
why naphthalene balls become smaller gradually
An open vessel at 27*C is heated until 75% of the air in it has been expelled. Assuming the volume of the vessel remains constant, the temperature to which the vessel has been heated is ___?
is soap a compound or mixture?
What is the role of fractionating column in fractional distillation ?Why can`t fractional distillation occur without a fractionating column ?What is the role of thermometer in distillation ?
Can you please explain why the actual atomic mass is greater than mass number?
the solute cant be separated from solution by filtration....why??
what is periodicity of elements?
What is the formula of silver Diamine Chloride?
How can growth of a plant be termed as a physical change?
why water is known as polar covalent compound?
please Explain the graphical representation of Boyle's law.
how to balance equation in partial method
when steam is passed over red hot iron ,magnetic oxide of iron and hydrogen are obtained. "the reation between steam and red-hot is a Reversible reaction". what is meant by this statement?
cooking of food is a physical change or chemical change??why??
why magnetising a piece of iron is a physical change?
why naphthalene balls become smaller gradually
An open vessel at 27*C is heated until 75% of the air in it has been expelled. Assuming the volume of the vessel remains constant, the temperature to which the vessel has been heated is ___?
is soap a compound or mixture?
What is the role of fractionating column in fractional distillation ?Why can`t fractional distillation occur without a fractionating column ?What is the role of thermometer in distillation ?
Can you please explain why the actual atomic mass is greater than mass number?
the solute cant be separated from solution by filtration....why??
what is periodicity of elements?
What is the formula of silver Diamine Chloride?
How can growth of a plant be termed as a physical change?