Answer:
1. right 2. left 3. left 4. left 5. left
Explanation:
1. N2 is a reactant, so adding more will push the reaction away from N2 which will be right, towards the products
2. treat heat as a product, so by increasing temp you increase heat and you push the reaction away from heat which will be left, towards the reactants
3. Adding NH3 will push the reaction away from it, so it'll move left, towards reactants
4. When you decrease pressure, the reaction will move to the side with more moles, since the left side has 4 moles and the right only has 2, it'll move left
5. by removing H2, the equillibrium will shift left in order to restore balance.
To give 33.6 dm³ hydrogen gas at STP, 18.06 x 10²³ atoms of Na must react completely.
<h3>What is Mole concept ?</h3>
A mole is a unit of measurement used to measure the amount of any fundamental entity (atoms, molecules, ions) present in the substance.
As according to the given equation, 2 moles (ie 12.04 x 10²³ atoms) of Na-atoms produces 1 mole (22.4 ltr) of H₂-gas.
Hence, to produce 33.6 ltr (equivalent to 33.6 dm³) of H₂-gas produced by ;
= 12.04 x 10²³ atoms of Na / 22.4 ltr of H₂-gas x 33.6 ltr
= 18.06 x 10²³ atoms of Na
Hence, To give 33.6 dm³ hydrogen gas at STP, 18.06 x 10²³ atoms of Na must react completely.
Learn more about Mole concept here ;
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Answer:
Strong acids. hope this helps :)
Polonium has an atomic number of 84 meaning it has 84 protons. Usually, this means there would also be 84 electrons in a normal element. A -3 charge means that there are 3 more negative electrons that positive protons so the overall number of electrons would be 87.
Answer:
When acetylene gas is passed over ammoniacal silver nitrate soln gives white ppt of disilveracetylide is formed. - When acetylene is passed over ammoniacal silver nitrate solution, white ppt of disilveracetylide is formed.