exothermic and endothermic
exothermic is ______ than endothermic
more common
a chemical that is synthetic is…
made in a lab
what type of science is the law of conservation in
chemistry
what does H2O stand for
water
are natural products always good and synthetic always bad
no
true or false: endothermic reactions give off energy
false
true and or false: the reactant(s) are the final result in a chemical reaction
false
matter can only change _____
physical properties
what is the difference between a subscript and a coefficient
a subscript is the little number have a letter a coefficient comes before a number and its bigger
true or false: everything starts as a natural recourse
true
give two examples of an exothermic reaction
answers may vary
bonfire and liquid to solid
in the law of conservation of mass states that _________
answers may vary matter cannot be created or destroyed
true or false: the matter most be isolated
true
how do you make calcium chloride
one Ca and two Cl
for synthetic products humans _____ in a lab
rearranged
both endothermic and exothermic reactions are measured by…
themomator
a mixture is
a combination of two or more substances
do the reactants and products ALWAYS have to be equal
yes
what does methane do
it fuels gas stoves
give an example of a synthetic and natural resource
natural: fruit slices synthetic: sodium alginate
can endothermic reactions be a chemical reaction AND physical reaction
No only a physical reaction
what is a similarity of mixtures and solutions
solutions are mixtures before OR they both have two or more substances
what is chemistry
physical science that studies matter and energy
what does NaC2H3O2 stand for
sodium acetate
is calcium chloride a synthetic or natural resource
natural