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Chemistry

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Cards in this guide (18)
Substance that speeds up the rate of chemical reaction

catalysts

promoters

What are the four types of chemical bonds

Ionic Bonds-form when two atoms have a large difference in electronegativity.

Covalent Bonds-form when two atoms have a very small difference in electronegativity.

Polar Covalent Bonds- form when two elements bond with a moderate difference in electronegativity. Fall between ionic and covalent.

Metallic Bonds-form in and between metals

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

Is Dihydrogen monoxide an example of a nonpolar molecule

Dihydrogen monoxide (H2O or Water) is not an example of a nonpolar molecule. It is a polar molecule.

In digestion which is a prelude to metabolism which of the following occur

Chemical reactions occcur

metabolic reactions occur

Which qualities can be used to identify binary covalent compounds

Covalent compounds are neutral. Covalent compounds share electrons.

Catalysts are that increase the rate of a chemical reaction

Catalysts are substances that increase the rate of a chemical reaction -APEX

Nonpolar bonds show what electronegativity difference between atoms

Nonpolar bonds show a Low electronegativity difference between atoms

In the compound Co2O3 cobalt has an oxidation number of what

Cobalt has an oxidation number of 3 (III) in the compound Co2O3.

What is the compound name for cuci2

cuci2 is nothing. CuCl2 with a lowercase L is copper II chloride.

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

No
false

Do calcium and sulfur make a covalent bond

No. Calcium and sulfur will form an ionic bond.

Nitrogen dioxide would have which of the following formulas

NO2

Nitrogen monoxide would have which of the following formulas

NO

Changing subscripts is one of the steps of balancing a chemical equation.

false

In the compound MgO magnesium has an oxidation number of .

+2

Do atoms giving up valence electrons indicate that an ionic bond is present

True Apex

True or false The law of conservation of mass states that in a chemical reaction, matter can be created or destroyed

true

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