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Chemistry

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Ottis Dickens

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Cards in this guide (13)
Substance that speeds up the rate of chemical reaction

catalysts

promoters

The electron geometry of a water molecule is even though the molecular geometry is bent

The electron geometry of a water molecule is tetrahedral even though the molecular geometry is _____.

Bent

The bond order for a double bond is

two

Identify the characteristics of ionic bonds

One atom is a metal, and one is a nonmetal.

&

One atom has a high electronegativity value, while the other value is relatively low.

When hydrogen is attached to the more highly electronegative oxygen atom in a water molecule

the oxygen atom becomes partially negative the hydrogen atom becomes partially positive

The systematic way to assign names to chemical compounds is called

Chemical nomenclature

Does The sharing of valence electrons between atoms indicates an ionic bond

No
false

When atoms in a covalent bond share electrons equally the bond is said to be .

it is a sigma bond.

Which one of the following is a balanced equation

2NH3(g) + 3Mg(s) —> 3H2(g) + Mg3N2(s)

What Are Clues That A Chemical Reaction That A Chemical Reaction May Have Taken Place

formation of a solid and release of heat. apex

Nitrogen dioxide would have which of the following formulas

NO2

If a chlorine atom were to attract an electron from sodium the chlorine atom would become charged.

positively

Atoms like sodium and lithium often lose electrons, which makes them

cations

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