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How many Hydrongen (H) atoms are in water (H2O)?
Methane CH4
how many atoms of a specific element are in the compound
Group 18
3
Gas is produced and sugar turns black.
similar chemical and physical properties.
There were three different chemicals burned in the explosion.
The color changed.
On the periodic table, the elements in each column, or group have....
Methane CH4
how many atoms of a specific element are in the compound
Group 18
3
Gas is produced and sugar turns black.
similar chemical and physical properties.
There were three different chemicals burned in the explosion.
The color changed.
An American Starburst firework gives off red, white, and blue light. How did the fireworks manufacturer get the firework to produce three different colors of light?
Methane CH4
how many atoms of a specific element are in the compound
Group 18
3
Gas is produced and sugar turns black.
similar chemical and physical properties.
There were three different chemicals burned in the explosion.
The color changed.
A subscript in a chemical formula tells you....
Methane CH4
how many atoms of a specific element are in the compound
Group 18
3
Gas is produced and sugar turns black.
similar chemical and physical properties.
There were three different chemicals burned in the explosion.
The color changed.
A student observes some sugar as it is heated and burns. Which of the following observations would lead to the conclusion that a chemical reaction has taken place?
Methane CH4
how many atoms of a specific element are in the compound
Group 18
3
Gas is produced and sugar turns black.
similar chemical and physical properties.
There were three different chemicals burned in the explosion.
The color changed.
In which group would you find the least reactive elements?
Methane CH4
how many atoms of a specific element are in the compound
Group 18
3
Gas is produced and sugar turns black.
similar chemical and physical properties.
There were three different chemicals burned in the explosion.
The color changed.
Which of the following compounds contains a total of 5 atoms?
Methane CH4
how many atoms of a specific element are in the compound
Group 18
3
Gas is produced and sugar turns black.
similar chemical and physical properties.
There were three different chemicals burned in the explosion.
The color changed.
The green color in an unripe banana comes from chlorophyll. As the banana ripens, the chlorophyll breaks down and reveals a yellow color. What evidence suggests a chemical reaction has occurred?
Methane CH4
how many atoms of a specific element are in the compound
Group 18
3
Gas is produced and sugar turns black.
similar chemical and physical properties.
There were three different chemicals burned in the explosion.
The color changed.
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Match it!
Match it!