af Jeremy Nason 11 måneder siden
106
Mere som dette
I determined this classification because a compound is a pure substance that is made up of two or more elements which are combined chemically. It can be broken down into simpler substances and smaller particles. Ammonia is a pure substance that can be broken down or simplified. This is how I know it is a compound.
Sugar (sucrose)
I determined this classification because a compound is a pure substance that is made up of two or more elements which are combined chemically. It can be broken down into simpler substances and smaller particles. Ammonia is a pure substance that can be broken down or simplified. This is how I know it is a compound.
I determined this classification because an element is a pure substance that is not made up of different ones and can't be broken down into simpler substances. Copper is a pure substance that can't be broken down or simplified. This is how I know it is an element.
Diamond
I determined this classification because an element is a pure substance that is not made up of different ones and can't be broken down into simpler substances. Diamond is a pure substance that can't be broken down or simplified. This is how I know it is an element.
I determined this classification because a solution mixture is a homogeneous mixture, meaning it is made up of two or more pure substances and you can't easily tell the substances apart, they are blended smoothly. A solution mixture contains one substance dissolved in another substance. The particles are too small to see, even with a microscope the particles will not settle or separate. The maple syrup fits this description because it is made up of water, sugar, and tree sap and you can't tell the particles apart.
Tea
I determined this classification because a solution mixture is a homogeneous mixture, meaning it is made up of two or more pure substances and you can't easily tell the substances apart, they are blended smoothly. A solution mixture contains one substance dissolved in another substance. The particles are too small to see, even with a microscope the particles will not settle or separate. The tea fits this description because it is made up of water and the effect of tea leaves but you can't separate this substances or tell that they are different.
I determined this classification because a suspension mixture is a heterogeneous mixture, meaning it is made up of two or more pure substances and you can easily tell the substances apart. A suspension mixture contains tiny but visible pieces of an insoluble substance mixed in a fluid that is always a liquid or gas. The Pineapple and milk smoothie fits this description because when you let it sit for a bit it will separate and you can see the tiny pieces of the different mixtures.
Polluted Air
I determined this classification because a suspension mixture is a heterogeneous mixture, meaning it is made up of two or more pure substances and you can easily tell the substances apart. A suspension mixture contains tiny but visible pieces of an insoluble substance mixed in a fluid that is always a liquid or gas. The polluted air fits this description because although you may need a microscope to see the different substances you can still see that the pollution and oxygen are different.
I determined this classification because a mechanical mixture is a heterogeneous mixture, meaning it is made up of two or more pure substances and you can easily tell the substances apart. A mechanical mixture contains two visible pieces of different substances that are always solids. This smore fits that definition.
Blueberry Muffin
I determined this classification because a mechanical mixture is a heterogeneous mixture, meaning it is made up of two or more pure substances and you can easily tell the substances apart. A mechanical mixture contains two visible pieces of different substances that are always solids. This blueberry muffin fits that definition.
Density Of A Piece Of Lead:
Mass = 10.3g
I used a triple beam balance to find the mass.
Volume = Length * Width * Height
= 3.1cm * 1.9cm * 0.1cm
= 0.589cm³
Density = M / V
= 10.3g / 0.589cm³
= 17.49g/cm³
The Density Of A School Agenda:
Mass = 236g
I used a triple beam balance to find the mass.
Volume = Length * Width * Height
= 20cm * 12.5cm * 1.3cm
= 325cm³
Density = M / V
= 236g / 325cm³
= 0.73g/cm³
When the water and oil mixed, it made the total volume the same. When the water and alcohol mixed, it made the total volume decrease. This is because the particles in water are bigger than the particles in alcohol therefore, the alcohol particles fit inside the water particles making the total volume less. The particles in water are the same size as the particles in oil which is why they make the total volume the same.
The ball was metal and it very slightly expanded when heat was applied to it. Then it was not able to pass through the ring. This is because the particles in the ball started moving faster and the particles took up more space. In the particle theory, when particles heat up they move fast and therefore take up more space. This is what made the ball expand and unable to pass through the ring.
