An organized ways of solving problems and it involves atleast 6 steps is?

Which of the following s a mixture?

Which of these cannot be separated into two or more substances by physical means alone?

An example of a chemical property is

What element is requried for synthesis of hemoglobin?

Which of these can be separated into two or more elements only by a chemical process?

If the temperature of an object is 0 kelbin, on temperature in celcious scale is 

Which of the following contains a single type of atom?

Which statement describe a chemical change?

Which of the following is a compound?

How many significant figures are in the number 0.0234?

It is defined as capacity for doing work is called

It is the energyextracted and electricity generation from natural steam or hot water refer to

Law of conservation of mass states that in an ordinary chemical reactions, the mass of the reactants equals the mass of the products.

One kind of matter reacts with other kind of of matter is

What is the reverse of evaporation?

In  biology, it is the liquid component of the blood.

Which expands more when heated?

Which of the following properties are physical?

An example of liquid is

The elements necessary for the formation of vitamin b12 is?

Gases have

A scientist looked at an atom and announced, its atomic number is 114! What subatomic particles did he count?

Philosopher who conceived the idea that matter is made up of tiny indivisible particles is?

Who among these scientist developed the atomic theory of matter?

Flourine atom accepts one electron forming Flourine ion. where is the electron added?

Which of the following are the three basic componnents of an atom?

What should be done to change li to li* ?

A stable atom has how many electrons in the outermost shell?

How are ions formed?

Which of the following elements has eight valence electrons?

Which of the following elements require threre additional electrons to become stable?

Which of the following elements would give three electrons to satisfy the requirement of octet rule?

Scientific attitudes requires of learners accuracy and verification of data. Which manifestation is often observed in experimentation?

Whihc of the following is not in the group of apparatus that are used in storing liquids?

Atomic model which shows that positively changes particles are at the center and negatively charged particles are scattered around in definite orbits

A scientist of modern times who proposed the atomic theory was

It is used in purifying water by converting the liquid water to gas then condensing back the vapors to the liquid state

Qualities that are characteristics of any sample of substance, regardless of the size and shape of the sample

Refers to the agreement of a particular value with the true value

The ratio of the mass of a substance to the volume occupied by the mass.

The matter is different.The old matter is no longer present.The original matter cannot be recovered (chemical change).

Gases have

If a blob of air is swept upward with no heat input or output, its temperature

When the volume of air compresses and no heat enter or leaves, the air temperature will

As a gas is cooled at constant pressure, the volume that the gas occupies

As the temperature of gas increases, the pressure increases

What is reverse of evaporation ?

It is found to the rightmost side of the periodic table and its oxidation number is zero because they are stable

It states that if the volume of gas increases the pressure decreases