Science - Check your knowledge 2 | Baamboozle - Baamboozle

Describe and state their charges and mass for: ELECTRONS

ELECTRONS are negatively electrically charged and their mass is about 1800x smaller than the one from the proton which we will treat as 0.

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Describe the following methods: Filtration

This process consists on running a mixture of solid and liquid through a paper filter and separate both

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Tell the difference between homogeneous and heterogeneous mixture?

homogeneous mixture - when you cant see the difference Heterogeneous - when you can see the difference.

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What is Concentration, in a substance?

concentration refers to the amount of a substance in a defined space.

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Describe the following methods: Simple Distillation

The mixture is heated until boiling point, the gaseous component is then condensed into its liquid state giving out an almost pure substance.

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What is Volatile?

Is something that evaporates easily at normal temperatures.

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Describe the following methods: Crystallisation

In this process you will heat up a solution until the point in which the solvent evaporates making the solute to attain high concentration

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What is Insoluble?

when the material cannot dissolve in a solvent.

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How can solutes dissolve faster in solvents?

decreasing the particle size of the solid, increasing the temperature and/or increasing the mixing or stirring rate.

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Explain the relationship between protons and electrons in an atom

In atoms the number of protons and electrons are always the same to keep their electric charge neutral.

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Define purity of a substance:

Pure substances are substances that are made up of only one kind of particles and has a fixed or constant structure.

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How does temperature affect diffusion of gaseous substances?

Diffusion is faster at higher temperatures because the gas molecules have greater kinetic energy, because of that, they move faster.

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