Chemical change
how many substances join to form new chemical properties.
two or more
whipping eggs, boiling water,dissolving sugar, dicing vegetables are 4 examples of what
physical change
Mixing baking soda and vinegar will create what type of gas?
What is Carbon Dioxide.
A physical change does not produce a what
new substance
Chemical change
the parts of the atom spinning around the outside of the nucleus are called
electrons
changing the state of matter, changing the shape, changing the texture and changing the color our what change
physical change
Leaves change color in the fall because their chemical makeup is changing. What change am I?
Chemical change a change in color.
Paper is still paper if it is ripped in half and crumpled up. What am I?
What is a physical change?
Physical change
Evidence of this change includes a change on odor (smell),change in color,the formation of bubbles,light or heat given off is what type of change?
What is a Chemical change?
Free point
3 free points
Alka-seltzer and bubbles in soda are what form
A chemical change.
Free point
3 free points
neutrons have what type of charge
What is neutral
when there is a chemical change the atoms in the substance do what
break apart and reconnect in a different formation
what are the main states of mater
solid,liquid,gas
in an atom what are the 2 things that make up the nucleus
neutrons and protons
In a physical change the appearance of matter changes, but its chemical composition remains__________
Remains the same.
what is the difference between a physical change and chemical change
A chemical change there is a change in the substance and in physical change there is a difference in the appearance
Melting snow/dissolving sugar is an example of ?
What is physical change?
A change that occurs when substances change into something new and different is?
What is chemical Change?
Words that describe the ability of a substance to change into new and different matter
What are chemical properties?
atoms are made of what three things
protons, neutrons & electrons
When a substance releases heat this is __________ reaction.
Exothermic reactions.