Answer and Explanation:
<em>Metallic bonding occurs between two or the same metals. In a metallic bonding structure, there is an electrostatic attraction between the positive metal ions leaving a sea of delocalised electrons. The sea of delocalised electrons allows metals to conduct electricity because the delocalised electrons are free to carry charge around the structure.</em>
<em>Pure metals are soft because there are layers of metal ions free to slide over each other as they are in a regular arrangement, pattern and size. </em>
<em>Alloys can be harder than pure metals because the different sizes of the atoms disturb the layers, stopping them from sliding over each other. Alloying a pure metal can let the metal become stronger and less reactive.</em>
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<em>hope it helped! Feel free to comment below with any questions! :)</em>
1. Which of the following is not true of a covalent compound?
<span>It is made of only nonmetals.
</span><span>2. What type of compound is almost always found as a solid?
</span>Ionic compound is almost always found as a solid because they have very tightly bound structures.
<span>3. Which of the following is not a characteristic of an ionic compound?
</span><span>It is formed when atoms share electrons.
</span>4. Covalent compounds are formed when
<span>a nonmetal bonds with a nonmetal.
</span><span>5. What is the relationship between a compound and the elements it is made from?
</span>The compound may have properties that are very different from those of the elements.
Answer: 2.796 grams
Explanation:
According to stoichiometry:
1 mole of 
reacts with 1 mole of 
0.012 moles of will react with=
of
Thus is the limiting reagent as it limits the formation of product. is the excess reagent as (0.018-0.012)=0.006 moles are left unused.
1 mole of produces 1 mole of 
0.012 moles of will produce= of
Mass of 
Thus 2.796 grams of are produced.
D).thermal energy
Hope this helps.
Two or more elements combined into one substance through a chemical reaction, such as water, form a chemical compound.
