Answer:
Explanation:
The chemical formula for methane is 
The chemical formula for oxygen is 
The chemical formula for carbon dioxide is 
The chemical formula for water is 
Methane burns in oxygen to give carbon dioxide and water:
The balanced equation that will ensure an equal number of each atom on the left and right-hand sides of the equation would be:
Generally when we move down the group on a periodic table the atomic radii increases as the valency electrons occupy higher levels due to the increasing quantum number. Hence the atomic radii increases down the group.
The ionic radii increases down the group because while we move down the group the elements gain electrons and form ions called anions as an additional electron occupies the orbital the ions get bigger in size. Hence the ionic radii increase.
Electronegativity is described as the ability to attract and bind with electrons and it is a qualitative property. It decreases as we move down the group because the distance between the valency electrons and the nucleus increases. Hence electronegativity decreases down the group.
Reactivity increases as we move down the group as the metals have the tendency to lose electron form its outer shell.
Therefore the answer is ionic radii increases.
Answer:
law of multiple proportions
Explanation:
The law of multiple proportions states that, if two elements A and B, combine to form more than one chemical compound. Then the various masses of one element A, which combine separately with a fixed mass of element B are in simple multiple ratio.
We can see that the ratio of oxygen that combines with carbon in the two compounds( A and B) is 1:2. This demonstrates the law of multiple proportions.
The substances A and B must be CO and CO2 respectively.
Answer: n∗R=22+273.15/4.2∗5n
P2=n∗R∗T2/V2=n∗R∗33.6+273.15/10
Explanation:
Answer:
The process of the sedimentation will take more time when carried out in the moon surface as compared to the earth's surface because of the less gravitational force.
Explanation:
Sedimentation is process in which the particles present in the suspension in water settle down of the suspension under the effect of gravity. The particle that has been settled down are the sediments. For the process to take place, gravity plays a vital role, but as we know that the gravitational force in moon is 1/6th or can say 16.7% of earth's gravitational force. So it will take more time as compared to the experiment done in the earth surface.
