States of Matter

A:

All physical objects, such as stars, books, people, animals, plants and the sea, are examples of matter. Matter is any physical object that occupies space and has mass.

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  • In what two ways is heat involved in chemical change?

    Q: In what two ways is heat involved in chemical change?

    A: Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place. Both of these two mechanisms of chemical change involve the heat characteristics of the involved substance or substances and the environment in which the chemical change is taking place.
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  • How does temperature affect the rate of evaporation?

    Q: How does temperature affect the rate of evaporation?

    A: Increased temperatures accelerate the rate of evaporation, while decreased temperatures slow down the process. First of all, heating of the liquid energizes the molecules, allowing them to escape and move into the air. Second, heat in the nearby atmosphere increases evaporation because warmer air is able to hold more water vapor.
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  • What is the hottest thing in the world?

    Q: What is the hottest thing in the world?

    A: In 2006, scientists at Sandia Labs recorded temperatures of 3.6 billion degrees Fahrenheit, or two billion degrees Kelvin, within a super-heated gas called plasma. The temperatures were reached with the aid of the Z machine, which is an x-ray generator.
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  • What happens in a condensation reaction?

    Q: What happens in a condensation reaction?

    A: In a condensation reaction, two reactants react to form water or ammonia and one other byproduct. As long as either water or ammonia is formed and is the only byproduct, a reaction is considered a condensation reaction. A condensation reaction is not to be confused with the process called condensation, where water vapor turns to liquid after losing heat.
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  • At what Celsius temperature does water freeze?

    Q: At what Celsius temperature does water freeze?

    A: Water freezes at zero degrees Celsius under normal conditions. The freezing point is the temperature at which a liquid becomes a solid, according to About.com. The Celsius scale is the official temperature scale for most of the world, although the United States still uses the Fahrenheit scale.
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  • Why do solids have definite shapes and volumes?

    Q: Why do solids have definite shapes and volumes?

    A: Solids have definite shapes and volumes because their atoms and molecules are held together firmly by the strong inter-molecular forces. At low temperatures, the kinetic energy in the solid is usually not enough to overcome these intermolecular forces, so the solid remains in the same state.
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  • Is aluminum a solid, liquid or gas?

    Q: Is aluminum a solid, liquid or gas?

    A: The physical state of aluminum is dependant on the temperature. This metal exists as a solid at temperatures below its melting point of 1220.58 degrees Fahrenheit, at which it becomes a liquid. At temperatures above 4566 Degrees Fahrenheit, aluminum becomes a gas.
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  • What is it called when a gas turns into a liquid?

    Q: What is it called when a gas turns into a liquid?

    A: Condensation is the name of the process through which gas turns into a liquid. Three common states of matter exist: solids, liquids and gases. Matter, however, can change its state with the addition or subtraction of energy. The energy is usually in the form of heat.
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  • How hot is fire?

    Q: How hot is fire?

    A: Wood fires usually burn at a temperature of around 1,950 degrees Celsius. The exact temperature of the flame is dependent on external conditions such as the type of fuel being burned, available ventilation and the form of oxygen available for combustion.
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  • Is silver magnetic?

    Q: Is silver magnetic?

    A: In its natural state, silver is not magnetic; its atoms have paired electrons that spin in opposite directions, thus causing their magnetic fields to be canceled out, making silver a diamagnetic material.
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  • Why can gases be compressed?

    Q: Why can gases be compressed?

    A: Gases can be compressed because each gas particle has relatively vast amounts of room between it and all other gas particles the majority of the time. Thus, compression, which is essentially forcing the gas particles closer together, has a great deal of space to reduce. This contrasts with liquids and solids, which have particles in constant contact with one another, and thus little room to compress.
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  • What happens when water boils?

    Q: What happens when water boils?

    A: Water boils when the thermal energy in the water, which is a type of kinetic energy which causes the water molecules to move around, exceeds the strength of the hydrogen bonds between the molecules, causing them to separate from the other molecules. This breaking of bonds between water molecules consumes any additional thermal energy added, so that water at boiling temperature does not increase in temperature until the phase change is complete. In normal conditions, much of the water vapor almost immediately turns to steam, which is actually composed of droplets of liquid water because it has left the source of heat.
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  • What happens when water freezes?

    Q: What happens when water freezes?

    A: When water freezes, the molecules slow down and assume a fixed position, although not quite in the way that one might think. Water is made of molecules with two hydrogen atoms and an oxygen atom, but those molecules don't just stop moving as units. One would think they would all stop, because the Third Law of Thermodynamics says that entropy drops with temperature, getting close to zero. However, ice does not show that property, which is one reason why ice is the only solid less dense than its liquid state.
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  • What is the boiling point of milk?

    Q: What is the boiling point of milk?

    A: The additional molecules in milk keep its boiling point slightly higher than water, which boils at 100 degrees Celsius or 212 degrees Fahrenheit. The chemical composition of milk dictates the boiling point and so there is no standard boiling point.
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  • How long does water take to freeze in a freezer?

    Q: How long does water take to freeze in a freezer?

    A: The time it takes for water to freeze in a typical freezer varies depending on a number of factors. The first factor to consider is the amount of water being frozen.
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  • Which gas is used in light bulbs?

    Q: Which gas is used in light bulbs?

    A: Argon is a commonly used gas used to fill incandescent light bulbs. It increases bulb life by preventing the tungsten filaments from deteriorating too quickly. Other gases such as helium, neon, nitrogen and krypton are also used in lighting.
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  • At what temperature does ice melt?

    Q: At what temperature does ice melt?

    A: Ice begins to melt when its surroundings rise above its freezing point, that being 32 degrees Fahrenheit (0 degrees Celsius). Depending on the salt content and the presence of other substances, that freezing point may be an even lower temperature.
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  • How does gas become a liquid?

    Q: How does gas become a liquid?

    A: The process of a gas changing to a liquid is called condensation, and for condensation to take place, the environment has to reach maximum vapor pressure, generally through a lowering of temperature in the case of the water cycle. Because pressure varies inversely with temperature, as temperature decreases, pressure goes up, causing the gas molecules to move with progressively less kinetic energy. Eventually, liquid vapor and droplets form, and the gas begins to condense.
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  • What are some general properties of matter?

    Q: What are some general properties of matter?

    A: Properties of matter, defined by Education Portal, are divided into two groups: physical properties that include color, density, mass, boiling point, volume, solubility, malleability and temperature; and chemical properties that include reactivity with oxygen, reactivity with water, flammability, pH, toxicity and combustion. Physical properties of matter can be observed or measured without changing the composition, while chemical properties can only be observed after a chemical change has occurred.
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  • What are the characteristics of matter?

    Q: What are the characteristics of matter?

    A: All physical matter has mass, weight, volume and density. Matter also has certain characteristics restricted only to specific physical states. Physical matter is made up of atoms, minuscule particles that form physical structures via their electrically charged attraction to one another.
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  • What is the function of liquid paraffin?

    Q: What is the function of liquid paraffin?

    A: Liquid paraffin has many uses. In addition to being an ingredient in many skin care products, liquid paraffin may also be used as a laxative, according to Drugs.com. A highly refined mineral oil, liquid paraffin can also be used as a culture overlay in conjunction with medical specimens and procedures.
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