Matter and Energy
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Elements and Compounds
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| show | Element
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| Every element is composed of: | show 🗑
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| show | Compounds
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| show | physically; chemically
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| show | Not consistent and can vary.
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| Can compounds be separated into their elements through physical processes? | show 🗑
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| Can physical processes be used to separate mixtures? | show 🗑
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| Why can physical processes be used to separate mixtures? | show 🗑
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| Type of mixture which is also called a "solution", has a uniform composition throughout, and it's individual components are not visible: | show 🗑
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| show | Heterogeneous mixture
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| show | Air, seawater, mouthwash
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| Examples of heterogenous mixtures: | show 🗑
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| In a chemistry laboratory, solids are separated from liquids by: | show 🗑
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| show | 3 states of matter
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| show | Solid, liquid, and gas
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| State of matter that has definite volume and shape, strong attractive forces that hold particles that are close together: | show 🗑
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| show | Liquid
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| show | Gas
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| show | Physical properties
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| show | Physical change
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| ___________ Properties describe the ability of a substance to change into a new substance: | show 🗑
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| When a ______ change takes place, the original substance is converted into one or more new substances, which have new physical and chemical properties: | show 🗑
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| Physical or Chemical change? Water boils to form water vapor: | show 🗑
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| show | Physical
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| show | Chemical
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| Physical or Chemical change? Sugar dissolves in water to form a solution: | show 🗑
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| show | Chemical
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| Physical or Chemical change? Paper is cut into tiny pieces of confetti: | show 🗑
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| show | Chemical
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| Science uses what unit of degree to measure temperature? | show 🗑
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| Freezing point of water: | show 🗑
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| show | 100 degrees C
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| show | 37.0 degrees C
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| show | 98.6 degrees F
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| How many degrees between boiling and freezing point in Celsius? | show 🗑
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| How many degrees between freezing and boiling point in Fahrenheit? | show 🗑
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| show | 1.8 degrees F
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| 180 degrees F is equal to ____ degree(s) C: | show 🗑
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| Equation to obtain Fahrenheit from Celsius: | show 🗑
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| show | Change Celsius to Fahrenheit
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| show | Adjust the freezing point from Celsius to Fahrenheit
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| Are the values 1.8 and 32 used to determine SFs in the answer? | show 🗑
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| show | TF -32/ 1.8= TC
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| 354 Fahrenheit in C: | show 🗑
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| show | 75.2 = 75
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| What is the coldest temp possible? | show 🗑
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| 273.15 C in Kelvin (K) | show 🗑
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| Degrees in Kelvin are called: | show 🗑
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| This temperature scale has no negative temperature values: | show 🗑
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| Freezing point of water in K | show 🗑
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| Boiling point of water in K | show 🗑
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| show | 100 kelvins
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| show | Celsius 1K=1C
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| Temperature equation to obtain kelvins from Celsius: | show 🗑
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| show | Convert from Kelvin to Celsius first
TK=TC+273 then convert your celsius answer to F
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| Energy is defined as: | show 🗑
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| Two types of energy: | show 🗑
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| The energy of motion: | show 🗑
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| Any object that is moving has _____ energy: | show 🗑
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| show | The position of an object or the chemical composition of a substance.
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| show | Boulder on mountain
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| show | The boulder could roll down the mountain
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| What is the type of energy associated with the motion of particles? | show 🗑
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| True or false: The particles in an ice cube move very slowly, if you hold the ice cube in your hand, the particles move faster meaning the ice cube now has greater heat or thermal energy: | show 🗑
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| show | Joule (J)
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| The joule is a small amount of energy, so scientists will often use the ______: | show 🗑
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| The calorie is defined as: | show 🗑
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| show | 4.184 j/ 1 cal and 1 cal/4.184 j
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| 1 kilocalorie Kcal is equal to: | show 🗑
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| show | 1000 joules
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| show | j x 1 cal/4.184 j
360 j x 1 cal/4.184 j = 86 cal
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| show | 1000 cal or 1 kcal
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| The energy values for food are ________ | show 🗑
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| show | Kilocalories = g x Kcal/g
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| show | Kilojoules = g x kJ/g
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| show | 4 kcal/g
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| show | 17kJ/g
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| How many kcal/g are there in fat? | show 🗑
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| show | 38 kJ/g
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| How many kcal/g are there in protein? | show 🗑
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| How many kJ/g are there in protein? | show 🗑
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| Equation to obtain percentage of fat in one serving of snack crackers: | show 🗑
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| show | The specific heat (SH) of a substance is defined as the amount of heat needed to raise the temperature of exactly 1 g of a substance by exactly 1 degree Celsius
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| show | ΔT
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| What does Δ mean? | show 🗑
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| Specific heat equation: | show 🗑
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| True or false? The specific heat expression can be rearranged to solve for heat as long as you know the specific heat: | show 🗑
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| Heat equation using calories: | show 🗑
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| show | J= g x Degree C x J/ g x degree Celsius
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| Specific heat of water: | show 🗑
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| show | Faster
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| show | Melting Point (mp)
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| show | Melting
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| A liquid changes to a solid at its ______: | show 🗑
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| True or false: The melting point (mp) and freezing point (fp) of a substance are the same temperature: | show 🗑
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| show | Heat of fusion
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| show | 80. cal (334 j)
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| show | heat = mass x heat of fusion
cal= g x 80. cal/g
J= g x 334 J/g
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| show | Sublimation
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| ________ Is taking place as particles with sufficient energy escape from the liquid surface and enter the gas phase: | show 🗑
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| reverse of evaporation, water vapor is converted back to liquid as the water particles lose kinetic energy and slow down: | show 🗑
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| show | Boiling point
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| show | Heat of vaporization
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| show | 540 cal
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| For water how many J are needed to convert 1 g of water to vapor at 100 degrees C? | show 🗑
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| show | 540 cal/1 g H2O
and 2260 J /1 g H2O ( and vice versa)
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| Write equation for calculating heat to condense (or boil) water: | show 🗑
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| ______ Equation would be used to calculate how much energy/heat needs to be added or removed to melt or heat water: | show 🗑
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| show | Heat of vaporization/heat of condensation
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Created by:
Lilielena
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