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Aleksandr-060686 [28]
3 years ago
14

How many steps are in a scientific investigation?

Chemistry
2 answers:
AleksAgata [21]3 years ago
8 0
Theirs eight steps In Scientific investigation
timurjin [86]3 years ago
3 0
There are eight steps
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Balanced there are 2 Al, 6 oxygens on both sides.
7 0
3 years ago
What is the ph of a solution of 0.550 m k2hpo4, potassium hydrogen phosphate?
Solnce55 [7]
We assume that we have Ka= 4.2x10^-13 (missing in the question)
and when we have this equation:
H2PO4 (-) → H+  + HPO4-
and form the Ka equation we can get [H+]:
Ka= [H+] [HPO4-] / [H2PO4] and we have Ka= 4.2x10^-13 & [H2PO4-] = 0.55m
by substitution:
4.2x10^-13 = (z)(z)/ 0.55
z^2 = 2.31x 10^-13
z= 4.81x10^-7
∴[H+] = 4.81x10^-7
when PH equation is:

PH= -㏒[H+]
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3 0
3 years ago
Write the balanced chemical equation for the dissociation reaction of thiosulfuric acid.
mafiozo [28]

Answer:

f(x)=3x^2

Explanation:

5 0
3 years ago
18. Which statement about photosynthesis is FALSE?
joja [24]
<h3>your query : </h3>

Which statement about photosynthesis is FALSE?

Answer:

b. Oxygen is needed as a reactant to produce

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and traps sunlight by Green pigments known as chlorophyll and stores these energy in bonds of glucose molecules

so ,

after this reaction glucose and oxygen is formed as products

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7 0
3 years ago
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jarptica [38.1K]

Answer:

Explanation:

125 cm3 -> 0.125 L

M = no. mole / volume (L)

M = 0.25 / 0.125 = 2 M

3 0
3 years ago
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