Science - Check your knowledge 2 | Baamboozle - Baamboozle

Describe the following methods: Evaporation

Evaporation is a procedure to remove the volatile component of a homogenous mixture by vaporizing the liquid. For ex. Salt solution.

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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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Describe Solute, solvent and Solution? With examples.

solutes can be liquids or solids. Solvents are always liquids. So solution is when you mix a solute and a solvent.

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What is Insoluble?

when the material cannot dissolve in a solvent.

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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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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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Define atomic number and atomic mass and show how to identify them.

To find atomic mass we measure the amount of protons + neutrons To find atomic number we have to know the amount of protons (NEUTRAL ATOMS=NUMBER OF ELECTRONS)

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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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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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Describe and state their charges and mass for: PROTONS

PROTONS are positively electrically charged and have mass of 1u (atomic mass unit)

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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 Volatile?

Is something that evaporates easily at normal temperatures.

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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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