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Chemistry

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Jessie Zieme

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Cards in this guide (22)
How is stoichiometry used

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

How is stoichiometry used to calculate the amount of product produced

Stoichiometry relates moles of reactant to moles of product, so if you have the amount of reactant in the equation, you can calculate the amount of product produced.

What is one way forces act on atoms

Forces cause bonds to form.

How are models affected by new evidence

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

Why do scientists define systems

It minimizes sources of bias in the data.

What best describes how forces affect matter

Forces hold matter together.

How do atoms show both unity and diversity

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

What happens at the cathode in an electrolytic cell

Reduction occurs at the cathode in an electrolytic cell.

What gets heavier in an electrochemical cell

The cathode

How do chemists organize information about elements

By grouping the elements on the periodic table

When a magnet is moved alongside a wire what happens

the electrons in the wire begin to flow

Which of these statements does not describe electricity

electricity cools down devices as it travels through them

Electricity acts in ways similar to ice, which is a solid.

Which of the following best describes a galvanic cell

A battery containing a spontaneous redox reaction

What is the average atomic mass of an element with isotopes a b and c

(mass of A) x (%of A) + (mass of B) x (% of B) + (mass of C) x (% of C)

Which metal gets coated during electroplating

The cathode gets coated during electroplating.

What characteristics indicates that an atom is unstable

by creating very strong bonds

All life on earth is ultimately dependent on what

The sun for energy

Similar scientific themes are seen in what areas of science

In all areas of science

What is a trend seen in the periodic table

electronegativity

Which of the following metals is the least stable Silver Potassium Iron or Aluminum

Potassium.

Which of the following statements describes electromagnetism

Magnetism can create electricity, and electricity can create magnetism.

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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