short answer
what is the difference between a heterogeneous mixture and a homogeneous mixture?
what is homogeneous is blended together and cannot be taken apart and a heterogeneous mixture is when you can take the mixture apart and put it back together
ph 9 ?
- acid
-neutral
-base
what is base
matter can be created but also destroyed
what is false
what is law of conservation of mass ?
what is? it states that matter cannot be created or destroyed during chemical reaction.
what is a uniform?
what is a mixture that looks the same all around
what are two examples of a compound ?
what is (answer will vary)
ex: H2O and CO2
water bug on the water?
-adhesion
-cohesion
-surface tension
what is surface tension
t/f a compound contains one type of atom and cannot be broken down into a simpler substance
ph 7
-acid
-base
-nuteral
what is a nuteral
meaning they can break down substances
what is corrosive
the difference between cohesion and adhesion?
what is cohesion is the attraction between molecules of the same substance adhesion is the attraction between molecules of different substances
a chemical reactions occurs..
-when you mix different chemicals together
-they dont
-when you mix the same chemicals together over and over again
what is when you mix different chemicals together
t/f adhesion is a force two objects together
what is true
tell me an example of a heterogeneous mixture
(answer will vary)
a solid liquid or gass
what is matter
the difference between an acid and a base?
what is acids are compounds that have a sour taste and can dissolve some metals bases are compounds that are slippery, have a bitter taste, and are caustic
what is the purest from of matter
-solid
-liquid
-gas
-element
what is an element
t/f the only neutral number is 7 on a ph scale
ph 1
what is acid
occur when one or more substances are converted to one or more different substances.
what is chemical reactions
how can mixtures be separated?
what is through physical properties such as density
how can you break up an element into a simpler from
-chemical reactions
-you cant
-by making it a compound then add another element
what is you cant
t/f the only forms of matter are solid liquid and gas
false
is made up of different substances such as elements, compounds or both.
what is a mixture
made of different kinds of elements