Advertisements
Advertisements
Question
Complete the statement given below by filling in the blanks with the correct words.
Atoms contain ________ with positively charged ________.
Advertisements
Solution
Atoms contains nucleus with positively charged protons.
APPEARS IN
RELATED QUESTIONS
In a reaction, 5.3 g of sodium carbonate reacted with 6 g of acetic acid. The products were 2.2 g of carbon dioxide, 0.9 g water and 8.2 g of sodium acetate. Show that these observations are in agreement with the law of conservation of mass.
Sodium carbonate + acetic acid → sodium acetate + carbon dioxide + water
Which postulate of Dalton’s atomic theory is the result of the law of conservation of mass?
When magnesium is burnt in air, there is an increase in mass after the reaction.
Give reason for the following.
Electricity is not considered matter.
Fill in the blank:
Matter is anything that has............. and occupies .............
State the law of conservation of mass.
Name the law of chemical combination which was given by Lavoisier.
Name the law of chemical combination which was given by Proust.
‘If 100 grams of calcium carbonate (whether in the form of marble or chalk) are decomposed completely, then 56 grams of calcium oxide and 44 grams of carbon dioxide are obtained’. Which law of chemical combination is illustrated by this statement ?
The law of conservation of mass was given by :
An ionic compound will be formed by the combination of one of the following pairs of elements. This pair of elements is :
State the ‘law of conservation of mass’.
State the main points of Landolt’s experiment for experimental evidence of the law.
Complete the statement by filling the blank with the correct word given below.
The law of conservation of mass is strictly valid if mass and _________ are considered together.
Match the following.
| Law of conservation of mass | Sir William Crookes |
| Law of constant proportion | James Chadwick |
| Cathode rays | Joseph Proust |
| Anode rays | Lavoisier |
| Neutrons | Goldstein |
