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Chemistry

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Garfield Gislason

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โˆ™ 2021-11-11 19:34:43
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Cards in this guide (21)
The subscripts of a compound indicate

the ratio of elements

Identify the gas law that is used to describe gas behavior under a specific set of circumstances

ideal gas

Which of these is determined by an empirical formula

the lowest whole number ratio of elements in a compound A+

What is a double replacement equation is composed of

A double replacement equation is composed of two compounds reacting to form two different compounds.

The ideal gas law measures pressure in

atmospheres A+

The ideal gas law measures volume in

liters

Add a coefficient when you need to

balance the reactant side with the product side of the equation.

Omar was recording his preliminary data before beginning an experiment on gas behavior The room temperature was 298K and atmospheric pressure was 1 ATM Omar used an acceptable abbreviation of thes

STP

The molar mass of a mole of lead is approximately grams
Choose the correct formula for finding percent of yield

(practical yield/theoretical yield) x 100

Sophie was asked to distinguish gases from solids and liquids Which of the following answers would be most correct

Gases are the least dense, have the greatest particle energy, and have no specific shape.

This term indicates that a problem is asking how much of a product will be made by a reaction

theoretical yeild.

Using the periodic chart indicate the most common charge of elements Type the correct answer then press Enter Include plus or where necessary

A+ (+2)

What term is defined as the number of moles of solute divided by the number of liters of solution

Molarity, abbrev. M, units: mol/L, mmol/ml

The elements in an imaginary compound exist in the mole ratio of 1 3 1 for elements XY What will the empirical formula for the compound be

X4y3

Calculate the number of moles in 27.50 grams CaCOร‹ร„ Type the correct answer then press Enter

.2750

Convert this temperature to the Kelvin scale -146รด C

To convert any temperature to the kelvin scale, when its in oC add on 273.

so in answer to your question, -146oC = 127K

Convert this temperature to the Kelvin scale 0รด C

1

The formula for sugar is C12H22011 how many moles of carbon are in 2 moles of sugar

If there are 2 moles of sugar. and 12 atoms of carbon per sugar molecule then there will be 24 moles of carbon atoms.

A compound found to contain 75.7 arsenic and 24.3 oxygen would have which of the empirical formulas below

As2O3

The formula for benzene is C6H6. Figure the molar mass of benzene to the nearest gram

The molar mass of benzene is 78 g.

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