<span>1. Coherence Theory (Theory of Coherence)
 Based on this theory, a knowledge considered to be true if the knowledge kehoren with the knowledge that exists and has been proven to be true. In the study of mathematics this is usually called the deductive nature.
 2. Correspondence Theory (Theory of corespondence)
 Based on this theory, a knowledge considered to be true if the knowledge of having a relationship with a reality that is true. This theory is based on the empirical fact that knowledge is true if there are facts that support that is true knowledge. Thus the truth here is based on inductive inference.
 3. Pragmatic Theory (Theory of Pragmatism)
 According to this theory, knowledge is said to be true if the knowledge is seen practically completely or have properties that true practicality. Followers of this theory argue that knowledge is true if it has keguanaan practical<span>.</span></span>
        
             
        
        
        
Answer:
B There are two grams of hydrogen for each gram of carbon in this compound.
Explanation:
The second option is a wrong interpretation of this chemical representation of formaldehyde. 
Formaldehyde is an organic compound with the formula CH₂O. 
As this is the simplest formula of the compound, it is the empirical formula. Also, the formula is the actual one for the compound and it is the molecular formula. 
Chemically, the formula shows 1 mole of carbon, 2 moles of H and 1 mole of oxygen in the compound. 
- A mole of a substance is more a less a unit of measurement in chemistry and it is the amount of substance that contains the avogadro's number of particles. 
This ratio is not the mass of chemical species in the compound. You cannot tell the mass of elements in a compound by merely looking at the formula. 
 
        
             
        
        
        
Answer:
a. Azane
b. sulphur hexachloride
c.carbon tetrachloride
d. Carbon disulfide
e.Umbelliferone
f.Disilicon hexabromide
g. Dinitrogen trifluoride
h.