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The electron geometry of a water molecule is tetrahedral even though the molecular geometry is _____.
Bent
two
Dihydrogen monoxide (H2O or Water) is not an example of a nonpolar molecule. It is a polar molecule.
One atom is a metal, and one is a nonmetal.
&
One atom has a high electronegativity value, while the other value is relatively low.
If a fluorine atom were to attract an extra electron from lithium, the lithium atom would become ______________ charged.
Answer: positively
Covalent compounds are neutral. Covalent compounds share electrons.
Catalysts are substances that increase the rate of a chemical reaction -APEX
Nonpolar bonds show a Low electronegativity difference between atoms
bonded
False
Exothermic
Trishi! =)
No
false
A reaction that gives off energy is an exothermic reaction. The reaction will give off energy in the form of either heat or light
An example of an exothermic reaction would be the curing of concrete.
One chemical reaction that will give off heat is the mixture of Caustic Soda and water. The water dissolves the Caustic Soda which in turn generates heat.
There are two types of reactions. Exothermic reactions give off heat, and endothermic reactions require that heat be added to make them work. Be careful with exothermic reactions. A rapid, energetic exothermic reaction is called an "explosion".
False
Checking of the coefficients.
2NH3(g) + 3Mg(s) —> 3H2(g) + Mg3N2(s)
NO2
positively
