Answer:
change in amount of liquid, change in smell or color, bubbling, foaming, fizzing
Explanation:
2. 5g of platinum
catalyst gets the reaction going faster
its not part of the reaction
brainly.com/question/16799211
9 birds
f is finches, h is herons, w is warblers, t is total
f+h+w=t
All but 6 means subtracted from the total
f=t-6
h=t-6
w=t-6
Adding the three equations gets 3t-18 and plug that back in and isolate
t=3t-18
t= 9
good to know
D
Common sense I guess............
