CHEMISTRY 10 TERM 1 REVIEW

Which of the following best describes the arrangement of particles in a solid?

• The particles are arranged randomly and none are touching.

• The particles are arranged randomly and are all touching.

• The particles are arranged regularly and none are touching.

• The particles are arranged regularly and are all touching.

Which of the following best describe freezing?

• Particles in a solid start to change into a gas.

• Particles in a solid start to change into a liquid.

• Particles in a gas start to change into a liquid.

• Particles in a liquid start to change into a gas.

Tags

NGSS.MS-PS1-4

Some scientists are testing a spacecraft in different chambers to simulate the effect of a planet’s temperature on nitrogen, which has a melting point of -210⁰C and a boiling point of -196⁰C. The Jupiter chamber has a temperature of -110⁰C, the Saturn Chamber has a temperature of -140⁰C and the Neptune chamber has a temperature of -205⁰C. Assuming that the pressure in all chambers is the same as room pressure which of the following statements is true?

• Nitrogen is found as a liquid on Jupiter.

• Nitrogen is found as a solid on Neptune.

• Nitrogen is found as a liquid on Saturn.

• Nitrogen is found as a liquid on Neptune.

Tags

NGSS.MS-PS1-4

When a substance changes from a solid to a liquid what is the name of the process?

• Evaporation.

• Boiling.

• Melting.

• Sublimation.

Tags

NGSS.MS-PS1-4

Some magnesium chloride powder is dissolved in distilled water. Which of the following sentences is correct?

• The magnesium chloride is a solute, the distilled water is the solvent and together they form a magnesium chloride solution.

• The magnesium chloride is a solvent, the distilled water is the solvent and together they form a magnesium chloride solute.

• The magnesium chloride is a solute, the distilled water is the solution and together they form a magnesium chloride solvent.

• The magnesium chloride is a solution, the distilled water is the solvent and together they form a magnesium chloride solute.

Some students were conducting an experiment to investigate how quickly a gas diffused along a tube. They wanted to change a variable to see how it affected the speed at which the gas diffused. Which of the following would not affect how fast the gas diffused?

• The concentration of gas they used.

• The temperature of the room they did the investigation in.

• The type of gas they used.

• The time of day they did the investigation.

Tags

NGSS.HS-PS1-5

Oxygen is one of the gases that make up the air around us. Which of the following describes the arrangement of the particles inside oxygen?

• The particles are arranged randomly and none are touching.

• The particles are arranged randomly and are all touching.

• The particles are arranged in regularly and none are touching.

• The particles are arranged in regularly and are all touching.

Tags

NGSS.MS-PS1-1

In fractional distillation crude oil is separated into the different compounds that it is made up from. To do this the compounds must be changed from liquids into gases. Which of the following will help change the liquids into gases?

• By cooling the crude oil.

• By keeping the crude oil at room temperature

• By heating the crude oil.

• By adding water to the crude oil.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which separation technique is most suitable for obtaining a dissolved solid from a solvent?

• Chromatography.

• Distillation.

• Crystallisation.

• Filtration.

Some students were investigating the diffusion of different gases. The relative masses of the following gases are shown in the table.

Which gas will diffuse most quickly?

• Nitrogen.

• Neon.

• Hydrogen chloride.

• Sulfur dioxide.