Get to the heart of Matter Physical Properties & Changes All about that base Chemical Properties and Changes Hodge Podge $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
These are the 3 parts of the atom, their charges and location.
What is: Proton-positive-inside nucleus Neutron-neutral-inside nucleus Electron-negative-electron cloud?
This is the number of neutrons that Cobalt has.
What is 32?
This is the number of protons that Cobalt has.
What is 27?
This is why density is often used to find the identity of an unknown substance.
What is every substance has their own unique density?
If an object has a mass of 50 g and a volume of 5 cm3, this is its density.
What is 10g/cm3?
Melting ice, mowing a lawn and carving a statue are all examples of ____________ ____.
What are physical changes?
The particles increase their speed and spread out when this is added.
What is when thermal energy is added?
Trail mix and vegetable soup are examples of this.
What are heterogeneous mixtures?
Explain how solids, liquids and gases differ.
Solid- particles close together and vibrate Liquid- particles touch but can slide past each other Gas- particles move very quickly and fill their container.
Color, density, state of matter, ability to conduct electricity are all_________.
What are examples of physical properties?
pH ranges from 0-6.9
What is an acid?
Tastes sour.
What is an acid?
Turns litmus paper blue.
What is a base?
Feels smooth
What is a base?
Is corrosive.
What is an acid?
Change in color, change in odor, change in energy, and formation of bubbles are all this.
What are signs of a chemical change?
This is the only way to truly prove that a chemical change has taken place.
What is the formation of a new substance?
A new substance has formed and no mass has changed when this takes place.
What is a chemical change?
The ability to rot, ability to burn, and the ability to rust are all examples of these.
What are chemical properties?
If the mass before a reaction is 88 grams, this will be the mass of the products after a chemical reaction.
What is 88 grams?
These can increase the rate of chemical reaction.
What are concentration, increasing temperature and increasing surface area?
Elements and compounds are both examples of ________.
What are substances?
This is the number of Carbon atoms the following formula in CO2.
What is one?
When iodine reacts with cornstarch, these 2 things have occurred.
What is a change in color and a chemical change?
When a gas goes directly to a solid without changing to a liquid first, it is called __________.
What is deposition?