Answer:
behavior of objects for which all existing forces are not balanced.
Explanation:
 
        
                    
             
        
        
        
I think the correct answers are X2Y and X3Y, X2Y5 and X3Y5, and X4Y2 and X3Y,
for the following reason: 
If you look at the combining masses of X and Y in
each of the two compounds, 
The first compound contains 0.25g of X combined with
0.75g of Y 
so the ratio (by mass) of X to Y = 1 : 3 
The second compound contains 0.33 g of X combined with
0.67 g of Y 
so the ratio (by mass) of X to Y = 1 : 2 
Now, you suppose to prepare each of these two
compounds, starting with the same fixed mass of element Y ( I will choose 12g
of Y for an easy calculation!) 
The first compound will then contain 4g of X and 12g
of Y 
The second compound will then contain 6g of X and
12g of Y 
<span>The ratio which combined
the masses of X and the fixed mass (12g) of Y
= 4 : 6 
<span>or 2 : 3 </span>
So, the ratio of MOLES of X which combined with the
fixed amount of Y in the two compounds is also = 2 : 3 </span>
The two compounds given with the plausible formula must therefore contain
the same ratio.
 
        
             
        
        
        
 In carbohydrates the C:H:O is 1:2:1
        
                    
             
        
        
        
<u>Answer:</u> The conjugate acid of  is
 is 
<u>Explanation:</u>
According to the Bronsted-Lowry conjugate acid-base theory:
- An acid is defined as a substance which looses donates protons and thus forming conjugate base.
- A base is defined as a substance which accepts protons and thus forming conjugate acid.
To form a conjugate acid of  , this compound will accept one proton to form
, this compound will accept one proton to form 
The chemical equation for the formation of conjugate acid follows:

The conjugate acid formed is named as carbonic acid.
Hence, the conjugate acid of  is
 is 