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AnnZ [28]
3 years ago
14

Why were they put into water before we tested them?

Chemistry
2 answers:
klasskru [66]3 years ago
7 0

explain the question your asking

gtnhenbr [62]3 years ago
3 0

we dont know what they put in the water

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2 Points
lara [203]

Answer:

All colors except blue are absorbed while blue is reflected. We

only see blue

Explanation:

When you go and see something blue as the sky, all of the colors are absorbed except blue. That is how we see colors

3 0
3 years ago
How many molecules are found in 90 grams of Al(OH)3?
jarptica [38.1K]

Answer:

6.95 x 10²³ molecules/particles

Explanation:

First we need to find the total Empirical Mass. We can find this by adding each element's mass together.

Al = 26.982,

O = 15.999

H = 1.008

26.982 + 3(15.999) + 3(1.008) = 78.003.

Now we divide by the mass given (90 grams).

90/78.003 = 1.153801777.

We then take that number and multiply it by avogadro's number (6.022 x 10²³)

1.153801777 x avogadro's number = 6.95 x 10²³

6 0
3 years ago
Pls give me three examples of stimuli that will make you run fast
photoshop1234 [79]
Stimuli that can make you run faster:
1. sound: if you hear a wild animal running after you that will make you run faster
2. vision: viewing something scary or unpleasant acts as a stimuli to make you run faster
3. pain: pain as a stimulus will make you run faster as it your bodies way of protecting you from harm
Hope this helps good luck <span />
3 0
3 years ago
Read 2 more answers
Which has the lowest freezing point?
Maslowich
Freezing point depression depends of the number of particles of the solute in the solution.
1)Pure water have highest freezing point. All other solutions with given solutes will have lower temperatures. 
2) The more particles of the solute in the solution the lower freezing point is going to be.
<span>b. 1.0 m NaCl ( dissociates and give 2 mol ions (1 mol Na⁺ and 1 mol Cl⁻))
c. 1.0 m K3PO4 (</span>dissociates and give 4 mol ions (3 mol K⁺ and 1 mol PO4³⁻)<span>
d. 1.0 m CaCl2 (</span>dissociates and give 3 mol ions (1 mol Ca²⁺ and 2 mol Cl⁻))<span>
e. 1.0 m glucose (c6h12o6) (glucose does not dissociate, and solution have
1 mole of particles of the solute(glucose))

The largest number of particles has </span>1.0 m K3PO4  solution, and it is has lowest freezing point . Answer is C.
8 0
3 years ago
What is the value for AG at 100 Kif AH = 27 kJ/mol and AS = 0.09 kJ/(mol-K)?
Elina [12.6K]

Answer:

ΔG =   18KJ/mol

Explanation:

Given data:

ΔS = 0.09 Kj/mol.K

ΔH = 27 KJ/mol

Temperature  = 100 K

ΔG = ?

Solution:

Formula:

ΔG = ΔH - TΔS

ΔH = enthalpy

ΔS = entropy

by putting values,

ΔG =  27 KJ/mol - 100K(0.09 Kj/mol.K)

ΔG =  27 KJ/mol - 9 KJ/mol

ΔG =   18KJ/mol

7 0
3 years ago
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