True
It’s true because models are based on real world problems to help grasp a understanding of the problem
Answer:
<em>D</em><em>.</em><em>They have properties similar to those of their component elements.</em><em> </em>
Explanation:
When elements are joined, the atoms lose their individual properties and have different properties from the elements they are made of .
Answer:
Arrow A:
✔ 74.6 kJ
Arrow B:
✔ exothermic
Arrow C:
✔ has a magnitude that is less than that of B
Arrow D:
✔ represents the overall enthalpy of reaction
Explanation:
<h2>Answer:</h2>
A.NH4Cl
<h2>Explanations:</h2><h2>How are buffer formed?</h2>
Buffers are formed by mixing an equal amount of weak base or acids and their corresponding salts.
Therefore in order to make a buffer with NH3 (a weak base), then a corresposding weak salt is required. A corresponding salt for the given base is NH4Cl
