Answer : The correct match is:
(1) → (k)
(2) → (j)
(3) → (f)
(4) → (d)
(5) → (e)
(6) → (g)
(7) → (a)
(8) → (i)
(9) → (l)
(10) → (c)
(11) → (b)
(12) → (h)
Explanation :
Physical property : It is defined as a change in which the identity of substance does not change.
Physical change : It is defined as something observed while keeping the identity of the substance the same.
Homogeneous mixture : It is defined as something made up of at least two different substances and is usually very difficult to separate. Even distribution of particles.
Heterogeneous mixture : It is defined as something made up of at least two different substances and easily separated by physical means. Unequal distribution of particles.
Chemical property : It is defined as something observed by changing the identity of a substance.
Compound : It is defined as a pure substance made up of at leat two different elements.
Matter : It is defined as anything that has matter and takes up space.
Chemical change : it s defined as a change that creates a new substance or compound.
Extensive property : It is defined as a property that change with the amount of matter present.
Mass : It is defined as the amount of matter contained in an object.
Volume : It is defined as the amount of space a substance takes up.
Intensive property : It is defined as a property that does not change with the amount of matter present.
The atomic mass of a certain element is summation of the product of the decimal equivalent of the percentage abundance and the given atomic mass of each of the isotope. If we let x be the percentage abundance of the 86 amu-isotope then, the second one is 1-x such that,
x(86) + (1 - x)(90) = 87.08
The value of x from the equation is 0.73. This value is already greater than 0.5. Thus, the isotope with greatest abundance is that which is 86 amu.
Answer:
alkali metals
Explanation:
they all react vigorously or even explosively with cold water, resulting in the displacement of hydrogen.
Answer:
See below
Explanation:
It is neither, at least not at room temperature.
Citric acid exists as a power at room temperature, but can be crystallized from cold water. This can be considered it's " solid state, " but as I mentioned before this acid is a powder. Take a look at the attachment below. This is a citric acid present as a crystal;