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Chemistry

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Lia Ruecker

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Cards in this guide (15)
Substance that speeds up the rate of chemical reaction

catalysts

promoters

If a fluorine atom were to attract an extra electron from lithium the lithium atom would become charged

If a fluorine atom were to attract an extra electron from lithium, the lithium atom would become ______________ charged.

Answer: positively

Atoms with a low electronegativity like calcium might bond with

an atom with a high electronegativity, like fluorine

Catalysts are that increase the rate of a chemical reaction

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

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

No
false

When atoms in a covalent bond have a rather high difference in the electronegativities the bond is set to be

A polar covalent bond.

Which of the following is an example of redox reaction-

Redox reaction is chemical reactions. This happens when atoms oxidation state changes.

Which the following is a necessary product of a combustion reaction

heat

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

The change that takes place when two or more substances what to form new substances is called a chemical reaction

(Apex) interact

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

What Bond energy needed to break or create bonds is measured in units is called

The answer is B. Kilojoules

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

cations

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