Explanation:
The ratio of NH3 to NO produced will remain constant since NH3 is the limiting reactant.
Here in this reaction for every 4 moles of ammonia and 5 moles of oxygen gas , 4 moles of NO and 6 moles of water are formed.
So when the amount of oxygen gas is increased to 20 moles without changing the amount of ammonia , the amount of NO formed does not increase as ammonia becomes the limiting reactant.
Explanation:
<em>Phys</em><em>ical</em><em> </em><em>Change </em><em>is</em><em> </em><em>a</em><em> </em><em>type </em><em>of </em><em>change </em><em>where</em><em> </em><em>by</em><em> </em><em>no</em><em> </em><em>new</em><em> </em><em>chemical </em><em>substance</em><em> </em><em>is</em><em> </em><em>formed</em><em>.</em><em> </em><em>Physical</em><em> </em><em>changes</em><em> </em><em>are </em><em>reversible</em><em>.</em><em> </em><em>whilst</em><em> </em><em>Chemical</em><em> </em><em>change </em><em>is</em><em> </em><em>a</em><em> </em><em>change </em><em>where </em><em>new</em><em> </em><em>chem</em><em>i</em><em>c</em><em>a</em><em>l</em><em> </em><em>substance</em><em> </em><em>is</em><em> </em><em>always</em><em> </em><em>formed.</em><em> </em><em>Chemical</em><em> </em><em>changes </em><em>are</em><em> </em><em>usually</em><em> </em><em>irreversible</em><em>.</em>
<em>Examples </em><em>of </em><em>Physical</em><em> </em><em>Change</em><em> </em><em>include</em><em>;</em>
<em>Melting</em><em> </em><em>of</em><em> </em><em>Ice</em>
<em>Melting</em><em> </em><em>of </em><em>Candle</em>
<em>Grinding </em><em>of </em><em>chalk</em>
<em>Magnetization </em><em>of</em><em> </em><em>Iron</em>
<em>Examples</em><em> </em><em>of</em><em> </em><em> </em><em>Chemical</em><em> </em><em>Change</em><em> </em><em>includes</em><em>;</em>
<em>Cooking</em><em> </em><em>of </em><em>food</em>
<em>Rusting </em><em>of </em><em>Iron</em>
<em>Burning</em><em> </em><em>of </em><em>Charcoal</em>
Answer : The correct option is (A) Hydrogen region of the molecule.
Explanation :
As we know that the water molecule has two hydrogen atom and one oxygen atom. The hydrogen atom has partial positive charge and oxygen has partial negative charge.
In the charged plate, the negative attracts positive and positive attracts negative. So, the hydrogen atom attracted to the negative plate and the oxygen atom attracted to the positive plate.
When water molecule placed between oppositely charged metal plates which is positively charged, then the hydrogen atom which is positively charged attracted towards the negative plate.
I’m pretty sure the answer is D!
Answer:
All the above
Explanation:
A. Electrical current conduction
Aqueous solutions of both strong and weak acids will conduct an electric current. Weak acids are poorer conductors because they produce fewer ions.
B. Reaction with magnesium
Both strong and weak acids will react with magnesium, although weak acids will react more slowly.
C. pH paper test
Both strong and weak acids will give a colour with pH test paper, although the colours will probably be different.
D. Litmus paper test
Both strong and weak acids will turn blue litmus red.
