Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Chapters 1 & 2

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
Answer
Physical property   observed with the senses  
🗑
Physical change   a change in size, shape, or state;no new substance  
🗑
Chemical property   indicates how a substance will react with something else; matter will be changed into new substance  
🗑
Chemical change   a change in the chemical and physical properties; new substance is formed  
🗑
Kelvin=   Celsius + 273  
🗑
Celsius=   Kelvin - 273  
🗑
exothermic   releases heat  
🗑
endothermic   process absorbs heat and cools the surroundings  
🗑
chemical reaction   a process that involves rearrangement of the molecular or ionic structure of a substance, as opposed to a change in physical form  
🗑
product   The substances that result from this recombination of atoms  
🗑
reactant   written on the left side, in a similar manner to a math equation  
🗑
density   Density is the mass of a substance per unit volume.  
🗑
mass   Mass is a measure of the amount of matter in a substance or an object.  
🗑
matter   Matter is all the “stuff” that exists in the universe.  
🗑
quantity   the amount or number of a material or immaterial thing not usually estimated by spatial measurement.  
🗑
volume   the amount of space that a substance or object occupies, or that is enclosed within a container, especially when great.  
🗑
weight   the name of the force exerted on an object due to the acceleration of gravity.  
🗑
allotrope   each of two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon.  
🗑
atom   the smallest component of an element, characterized by a sharing of the chemical properties of the element and a nucleus with neutrons, protons and electrons.  
🗑
element   a substance whose atoms all have the same number of protons  
🗑
molecule   a complete chemical unit  
🗑
acid   A substance that produces H+(aq) ions in aqueous solution. Strong acids ionize completely or almost completely in dilute aqueous solution. Weak acids ionize only slightly.  
🗑
base   A substance that produces OH (aq) ions in aqueous solution. Strong soluable bases are soluble in water and are completely dissociated. Weak bases ionize only slightly.  
🗑
compound   A substance of two or more elements in fixed proportions. Compounds can be decomposed into their constituent elements.  
🗑
mixture   A sample of matter composed of two or more substances, each of which retains its identity and properties  
🗑
ion   An atom or a group of atoms that carries an electric charge.  
🗑
inorganic compound   any compound that does not both carbon and hydrogen together  
🗑
organic compound   any compound that contains both carbon and hydrogen together  
🗑
pH   a figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid, and higher values more alkaline.  
🗑
chemical bond   The attractive forces that hold atoms together in elements or compounds.  
🗑
energy   The capacity to do work or transfer heat.  
🗑
heat   the sum of the total of kinetic energy of the particles in a sample of the matter  
🗑
kinetic energy   energy a moving object has because it is in motion  
🗑
potential energy   energy an object has because of its location  
🗑
specific heat   the amount of heat energy required to raise the temperature of 1g of a substance by 1 kelvin  
🗑
system   an integrated whole, composed of diverse, interacting, specialized structures and subfunctions.  
🗑
temperature   A measure of the intensity of heat  
🗑
hypothesis   a testable question/problem  
🗑
theory   a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.  
🗑
scientific law   statement based on repeated experimental observations that describes some aspect of the universe.  
🗑
accuracy   How closely a measured value agrees with the correct value.  
🗑
precision   how close multiple results are to each other  
🗑
solid   definite shape/volume - molecules tightly packed - vibrate in place  
🗑
liquid   definite volume; variable shape - moderately packed - flow over each other  
🗑
gases   indefinite shape/volume - spread far apart - rapid random motion  
🗑
reactants   to the left of the arrow  
🗑
products   to the right of the equation  
🗑
KHDBDCM   kilo, hecto, deka, base, deci, centi, milli  
🗑
density =   mass/volume  
🗑
heterogeneous mixture   can be separated from one another.  
🗑
homogeneous mixture   a solid, liquid or gaseous mixture that has the same proportions of its components throughout a given sample  
🗑
activation energy   the amount of energy needed to make an object begin movement  
🗑
law of conservation of energy   energy can neither be created nor destroyed  
🗑
% of error=   theoretical-experimental / theoretical X 100  
🗑


   

Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
 
To hide a column, click on the column name.
 
To hide the entire table, click on the "Hide All" button.
 
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
 
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.

 
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how
Created by: Kolby_Furr91301
Popular Chemistry sets