Jeopardy Review- Sem 1 ChemScientific Method + Metrics

Properties of Matter

The Atom Compounds The Periodic Table

100 100 100 100 100

200 200 200 200 200

300 300 300 300 300

400 400 400 400 400

500 500 500 500 500

Final Jeopardy

Sci Method + Metrics 100

• A statement that can be tested is also called a _____?

• Hypothesis

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Sci Method + Metrics 200

• A statement made using your senses (sight, touch, taste, hearing, smell) is called an _____.

• Observation

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Sci Method + Metrics 300

• After eating lunch, a student has a mass of 73.6 kg. What is the student’s mass in grams?

• 73,600 gBack

Sci Method + Metrics 400

• When playing darts, a person hits the three, the desired spot, 14 times in a row. Their throwing should be described as which of the following?

a) Accurate

b) Precise

c) Both accurate and precise

d) Neither accurate nor precise

• Both accurate and preciseBack

Sci Method + Metrics 500

• Calculate the %error of the electronic balance: Jimmy finds the mass of a 20g object on an electronic and manual balance. The manual balance measures the object’s mass as 24.23g and the electronic balance measures it as 22.23g

• 20 - 22.23 x 100 = 11% error 20

Back

errorpercentactual

ltheoreticaactual

100

Properties of Matter 100

• What are the three states of matter?

• Solid, liquid, gas

Back

Properties of Matter 200

• The properties that describe how a substance changes into a new substance through chemical reactions are called _______________ properties.

• chemicalBack

Properties of Matter 300

• DAILY DOUBLE!!!

• A measurement of the force of gravity on an object is termed what?

• weight

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Properties of Matter 400

• Define heterogeneous mixture and give an example.

• The mixture is different throughout; example: fruit salad

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Properties of Matter 500

• When a rock was placed in 52mL of water, the level rose to 67mL. If the density of the rock is 11g/mL, what is its mass ?

• D=m/v; m=d*v 11 * 15mL= 165g

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The Atom 100

• What subatomic particles are found in the nucleus?

• Protons and neutrons

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The Atom 200

• What are the outermost electrons called?

• Valence electrons

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The Atom 300

• Change the number of these and you get an ion.

• electrons

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The Atom 400

• Change the number of these and you get a new element.

• Protons!

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The Atom 500

• The amount of energy needed to remove the outermost electron from an atom.

• Ionization energy

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Compounds 100

• When two nonmetals share electrons, they form a _____ bond.

• covalent

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Compounds 200

• An ionic bond is formed when _____.

• A nonmetal takes electrons away from a metal

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Compounds 300

• Write the formula for ammonium sulfide.

• (NH4)2S

Back

Compounds 400

• HNO3… is a(n)

• acid

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Compounds 500

• Write the name for H2CO3

• Carbonic acid

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The Periodic Table 100

• Who developed the modern periodic table?

• Mendeleev

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The Periodic Table 200

• Where are the alkaline earth metals? Where are the alkali metals?

• Alkaline earth- column 2

• Alkali metals- column 1

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The Periodic Table 300

• What happens to the atomic radius as you move down and to the left on the periodic table?

• It gets bigger as you move down and smaller as you go to the right.

• Bonus (+2!) why? Back

The Periodic Table 400

• Where are the halogens?

• Column 7

Back

The Periodic Table 500

• What happens to the reactivity of metals as you go down and to the left? What happens to the reactivity of metals and you go up and to the right?

• Reactivity increases for metals

• Reactivity increases for nonmetalsBack

Final Jeopardy

• DIMENSIONAL ANALYSIS- MAKE YOUR WAGER

• How old am I in years?• Convert that to minutes.

• 15,242,400 minutes!(29yrs x 365 days/yr x 24 hrs/day x 60 min/hr)

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