Types of Matter
A pure substance only made up of one thing
What is an element?
This formula:
d = m/v
What is the formula for density?
The substance that is doing the dissolving.
What is the solvent?
Going from gas to liquid is an example of this. Why?
What is a physical change? Because the substance is still the same/ it has not changed.
Boiling point
Oil and Water are an example of this.
What is a heterogeneous mixture?
I can calculate the volume of an irregular (doesn't have clearly defined sides) by doing this.
What is volume by displacement?
The substance that is being dissolved.
What is the solute?
Creating slime is an example of this. Why?
What is a chemical change? Because the substance cannot revert back to its original components.
Freezing point
What is the point at which a liquid turns into a solid?
A salt solution is an example of this.
What is a homogenous mixture?
A graduated cylinder has liquid with a volume of 350mL. When an irregular object is placed inside of the liquid gives me a new volume of 380mL.
The volume of the object is this.
What is 30mL?
These factors affect the solubility of a substance.
Atoms are arranged in a solid fashion and closely together.
What is a solid?
Adding this can lowers the freezing point of water.
What is salt?
A substance that is made up of more than one substance and is bonded together.
What is a compound?
A graduated cylinder has liquid with a volume of 350mL. When an irregular object, that has a mass of 50g, is placed inside of the liquid gives me a new volume of 380mL.
The density of the object is this.
1.7g/mL
If a substance has a solubility of 35g/100mL. I can add this much substance to 100mL of water, before it begins to settle on the bottom of my beaker or graduated cylinder.
What is 35g?
In order to go from a as to a liquid, I must do this to the energy in the system.
What is reduce/Lower/Decrease the energy in a system?
If I have a substance that has a mass of 35g, a specific heat of 0.9 and the temperature rises from 19 degrees Celsius to 30 degrees Celsius. The amount of energy used is________
346.5
NaCl is an example of this.
What is a compound?
A graduated cylinder has liquid with a volume of 300mL. When an irregular object, that has a mass of 30g, is placed inside of the liquid gives me a new volume of 380mL.
The density of the object is this.
What is 0.375g/mL?
If I add dye to a cold solution and the same dye to a boiling solution, I can expect this to happen.
What is the dye to move dissolve quicker in the hot substance because the molecules of the solution are more spread apart when compared to the colder solution?
Burning oil to heat your home is an example of this.
What is a chemical change?
50g of water was heated from 30.2 degrees Celsius to 58.6 degrees Celsius, the amount of energy used was ___________________, if C = 4.18.
What is 5935.6?