Answer:
Hello!
Gold is a chemical element with symbol Au (from Latin: aurum) and atomic number 79. In its purest form, it is a bright, slightly reddish yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal and a group 11 element.
So in short, the Correct Answer will be (D) an Element.
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Explanation:
 
        
                    
             
        
        
        
1 kpa = 0.0098692327 atm so just multiply that by 45.6
        
             
        
        
        
Answer:
Pressure will increase since their is not much room
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Explanation:
 
        
             
        
        
        
False, atoms can not be created that way
 
        
             
        
        
        
Answer is: 2. can dissolve.
Ionic compounds separates into particles (ions) in water because of their ionic bond.
For example sodium chloride is ionic compound and strong electrolyte and dissociates in water on hydrated sodium cations and chlorine anions:
NaCl(aq) → Na⁺(aq) + Cl⁻(aq).
Ionic bond is the electrostatic attraction between oppositely charged ions (cations and anions).