Mid summative 1-2 answers 2011

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What is it? Rearrange the symbols for the elements and use the clues provided to figure out the words. 1. You need this to see! Sodium + Titanium + Rhenium 2. You or me Sulfur + Nitrogen + Phosphorous + Oxygen + Erbium 3. Vacation home Calcium + Indium + Boron 4. Don’t gamble on this one! Erbium + Polonium + Potassium

Transcript of Mid summative 1-2 answers 2011

Page 1: Mid summative 1-2 answers 2011

What is it? Rearrange the symbols for the elements and use the clues provided to figure out the words.

1. You need this to see!Sodium + Titanium + Rhenium

2. You or meSulfur + Nitrogen + Phosphorous + Oxygen + Erbium

3. Vacation homeCalcium + Indium + Boron

4. Don’t gamble on this one!Erbium + Polonium + Potassium

Page 2: Mid summative 1-2 answers 2011

1. You need this to see!Sodium + Titanium + Rhenium

2. You or meSulfur + Nitrogen + Phosphorous + Oxygen + Erbium

3. Vacation homeCalcium + Indium + Boron

4. Don’t gamble on this one!Erbium + Polonium + Potassium

The answers are …

Na + Ti + Re RETINA

S + N + P + O + Er

PERSON

Ca + In + B CABIN

Er + Po + K

POKER

Page 3: Mid summative 1-2 answers 2011

Which elements are in the following substances?

Substance Chemical Formula

Names of elements

Water H2O Hydrogen, Oxygen

Sucrose C12H22O11 Carbon, hydrogen,

oxygenOzone O3 Oxygen

Lead acetate Pb(C2H3O2)2 Lead, Carbon,

Hydrogen, Oxygen

Ammonium carbonate

(NH4)2CO3 Nitrogen, Hydrogen,

Carbon, Oxygen

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What is the difference between Co and CO?

•Co is the symbol for the element Cobalt

•CO is the symbol for 2 elements, Carbon and Oxygen

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Which are substances?

•Ni•Co•Fe

•CO

•CaCO3

•MgSO4

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Why are they a substance?

Each is a form of matter that is

different from the other forms of

matter

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How are elements & matter related?

Elements are the building

blocks of matter

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Why was the mystery mixture a chemical

reaction?A chemical reaction is the combination of 2 or more

substances that results in a new substance. We combined the

mystery mixture with water and a gas (bubbles) formed which is a

new substance

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 Atomic Model

In what period would you find this

element?

     

In what group would you find this

element?

     

 

Name of element

 

     

4 2 3

2 6 7

Calcium

Oxygen

Chlorine

Periods are determined by number of orbitals (outer rings) found in an atomic model

Groups are determined by number of electrons found in the outer orbital of an atomic model

Name of the element can either be determined by looking at the number of protons which is the

atomic number of the element OR using the period and group to locate it on the periodic table

Page 10: Mid summative 1-2 answers 2011

• Atomic number – 16• Atomic mass –

54.938• Protons – 16• Neutrons – 39• Electrons - 16

• Atomic number – 19• Atomic mass –

39.098• Protons – 19• Neutrons – 20• Electrons - 19

16

SSulfur

54.938

19

KPotassium

39.098