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Chemistry

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Noemy Grady

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Cards in this guide (14)
How many moles of NaCl are formed from the reaction between 1.4 moles of HCl and 2.8 moles NaOH

1.4 moles - the HCl is the limiting ingredient

Forces on washing machine while washing

The force of an washing machine can wash 10-15 clothes at the same time.

How is stoichiometry used

Stoichiometry is used to find the molar ratios between the reactants of a chemical reaction.

What is the oxidation state of s in HSO4 2-

In HSO4- sulfur's oxidation state is +5.

How are models affected by new evidence

Models are changed if they don't fit new data.

How do atoms show both unity and diversity

There are relatively few atoms, but they make many molecules.

What gets plated during electroplating

The metal being used as the cathode

What is the voltage of a galvanic cell made with magnesium and gold

4.2 V

What drives a galvanic cell

A Spontaneous Redox Reaction

Similar scientific themes are seen in what areas of science

In all areas of science

In which step of the four stroke engine cycle does the heat from the combustion reaction cause the pistons to move

combustion and expansion

Hydrogen-powered cars create less pollution than gasoline-powered cars when driven. What might be a challenge to using hydrogen as a fuel

Challenges to hydrogen as fuel include no distribution network, ie gas stations, and fear that the car co u l d explode like the Hindenburg.

As electrons pass through a particular device magnets begin to rotate. This rotation is then used to power devices such as ceiling fans. This is a description of what happens in a(n) .

Electric motor

In the reaction mgcl2 plus 2koh mgoh2 mgoh2 plus 2kcl if 3 moles mgcl2 are added to 4 moles koh what determined how much mgoh2 is made

The amount of Koh

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