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Chemistry

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Alexandrine Nienow

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Cards in this guide (18)
What is a solution

A liquid with something dissolved in it

Express a numbers of scientific notation

how to express scientific notation to a simle number

What is the mass in grams of 6.02 x 1023 atoms of sulfur

32g

What does percent composition tell you about a molecule

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

What does a complete ionic equation look like

All ionic substances are written as separate ions in solution

Which conversion factor would be used to convert gmol to gl

mol/l

Which element is the reducing agent in a redox reaction

The reactant that has the atom that gets oxidized

What is the percent composition of sulfur in SO2

32.1g

__________________

X100%

(32.1g + 16.0g + 16.0g)

What happens in a reduction

An element gains one or more electrons

What is an example of food engineering

The development of irrigation.

What are the spectator ions in Mgs Zn2 2NO3- Mg2 2NO3- Zns

NO3-

What is the complete ionic equation for h2so4aq cai2aq caso4s 2hiaq

For Apex: 2H+ + SO42- + Ca2+ +2I- -> CaSO4 + 2H+ + 2I-

What is the molarity of a solution of 3 moles of FeBr3 in 1 half L water

The molarity is 6 mol/l.

What best describes the empirical formula

A chemical formula that shows the relative number of each type of atom in a molecule, using the smallest possible ratio

What would the answer to the following conversion problem be 96 ft 1yd3ft

32 yd

Express the number 0.009402 in scientific notation

9.402 x 10^-3

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

B. s2o6

Which of the following could be considered a benefit of modern farming techniques

The food we eat is fresher because it is treated with preservatives.

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