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Chemistry

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Brenden Bosco

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Cards in this guide (11)
Which of the following describes a cytotoxic autoimmune reaction

Which of the following (what)?

What does percent composition tell you about a molecule

It tells you how much of a molecule is made up of each element. - APEX

How does one determine a percent composition from an empirical formula

divide the total mass of the element by the mass of the compound and multiply by 100%

Where are the products in a chemical equation located

usually on the right of the yeild sign
On the right side of the arrow in the equation

What is the percent composition of sulfur in SO2

32.1g

__________________

X100%

(32.1g + 16.0g + 16.0g)

What reaction shows a compound breaking apart into separate substances

Decomposition reaction

What is the best definition of a physical change

Answer this question… Which of the following is the best definition of a physical change?

Which concentration unit is independent of temp

The unit of concentration is Molar = Moles/Litre.

What happens in a double replacement reaction

In this reaction a change of bonds of the reactants occur: the general form is:
AB + CD = AD + BC

How many moles of KCI would be dissolved in 4 L of water to make 2 M solution

8 moles

so3 is an empirical formula for which of the following A. so4B.s2o6C.s4o2D.s2o3

B. s2o6

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