Answer:
Its Simple
Explanation:
1 . Acid
2.Hydronium
3. Litmus paper
4. Hydroxyl
5. Acid ....... Reactions
Answer : Option B) All atoms of a single substance are identical.
Explanation : The scientist John Dalton proposed the atomic theory which had the postulates as follows.
i) All matter/substances consists of indivisible particles known as atoms.
ii) Atoms of the same element/substance are similar in mass,shape and size, but differ from the atoms of other elements.
iii) Atoms obey the law of conservation of energy which says atoms cannot be created or destroyed.
iv) Atoms of different elements may combine with each other in a fixed, simple, whole number ratios to form any compound atoms.
v) Atoms of same element can combine in ratio with more than one to form two or more compounds.
vi) The atom is considered to be the smallest unit of matter that can take part in a chemical reaction
EN is the tendency of atom to attract the bonding pair of elecrons toward itself so as we move across period the size of atom remains same and nuclear charge increses so it can attract valance shell more tightly toward it and also the bonding pair which is formed and its vice versa in group
Answer:
Acid is a molecule capable of donating hydrogen ion and they form aqueous solutions with a sour taste while base is a substance that accepts proton from proton donor and in aqueous solution, they have an astringent or bitter taste. Moreover, a good example for base is sodium hydrogen carbonate as baking soda or baking powder and for acid, the most common example is the acetic acid or vinegar.
The answer to your question is,
B. Government.
-Mabel <3
