I have done this question before and even though you didn’t provide the options. I think the correct option is elements
Answer:
-The mole is appropriate only for counting things that are very small.
-One mole is a very large number of something.
-A molecule of water is much smaller than a grain of sand.
Explanation:
Answer:
its the same thing as 3 x3 or 3+3 it always come´s back as 9 or 6 Because of life
Explanation:
Answer:
Explanation:
(a) Balanced reaction of gallium with oxygen is as follows:

(b) 
Multiply the carbon dioxide by 6 to balance carbon as follows:

After that multiply H2O by 7 to balance hydrogen as follows:

Finally balance oxygen by multiplying O2 by 19/2. Therefore, balanced reaction is as follows:

(c) 
first balance calcium, by multiply
by 3 as follows:

After that balance phosphorous by multiplying
by 2 as follows:

Finally balance Na by multiplying NaCl by 6. Therefore, balance reaction is as follows:
