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Chemistry

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Vivien Metz

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Cards in this guide (15)
Maxwell a Russian scientist created an early periodic table of elements

false

Atoms with a low ionization energy hold tight to their outer valence electrons

No; the phrase given characterizes high rather than low ionization.

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

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

Monatomic anions that are ionically or covalently bonded use which suffix for naming

Ide

Catalysts are that increase the rate of a chemical reaction

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

What represents the number of units of each substance taking part in a reaction

synthesis

Who listed the elements in a table accourding to their atomic masses

Mandeleev who predicted periodic table.

What is the difference between a binary ionic compound and a teranry ionic compound

a binary ionic compound is made up of two elements, a teranry compound is made up of three

Which one of the following is a common acid soap aspirin antacid and washing soda

Aspirin

Which one of the following is a balanced equation

2NH3(g) + 3Mg(s) —> 3H2(g) + Mg3N2(s)

When atoms in a covalent bond share electrons unequally the bond is said to be blank

Polar bond

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

(Apex) interact

What is the oxidation number of chlorine in the compound pbCl2 has to be

-1

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

cations

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