The tempture used to melt sodium cloride(table salt)
What is 801 degrees Celsius(1474 degrees Fahrenhiet)?
100
The strength of a base solution
What is alkalinity?
100
the only two elements on earth that are liqud at room tempture
What is mecury and bromine?
200
The substances have undergone a chemical change. one of these is the formation of solid when solutions are mixed. This is a formation of such a solid in liquid.
What is Precipitate?
200
taarnished silverware
What is silver sulfide?
200
OH-
What is the hydroxide formula?
200
Some metallic elements are much more likely to take part in chemical reactions than others. This means they react easily
What is reactivity?
200
glucose and oxygen is prodused by this prosses
What is photosynthesis
300
The most reactive alkli metal
What is Francium?
300
a alkli metal that can be sliced with a butter nife
What is sodium?
300
When bases react chemically with acids and form salts and water
What is a neutralization reaction?
300
Any metal that can be rolled or pounded into flat sheets.
What is Malleable?
300
a metal that melts at 30 degrees celcius
What is gallium?
400
When you eat and breathe, you reverse photosynthesis. The reverse reaction is called as.
What is Respiration?
400
a material that loses all resistance to electrical flow
What is a superconductor?
400
these are measured on the PH scale
What are acids and bases?
400
Any metal that can be drawn out into strands of wire.
What is Ductile?
400
a combination of copper and zink
What is brass?
500
The food making process in green plants is a chemical reaction.
What is Photosynthesis?
500
the second most abundent metal in earths crust
What is iorn?
500
Bases form these when the neutralize acids
What are salts
500
Gradual eating away of a metal because it reacts chemically to form acompound that weakens it.