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Yanka [14]
3 years ago
6

Help;;;;;;;;;;;;;;;;;)

Chemistry
2 answers:
Dmitry [639]3 years ago
7 0

The answer would be 3 cm

Setler [38]3 years ago
3 0
The answer would be 3 cm. you round down to the nearest whole number when it is less than 5. you round up when it is 5 or more.
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What did you observe about the properties of the sodium carbonate mixture before the substances were mixed together?
anzhelika [568]

Answer:

Would you consider adding a sodium carbonate solution to a magnesium sulfate .

Explanation:

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5 0
2 years ago
(3) How many atoms are there in 6h2o2 A 6 B, 8 C, 12 D, 24​
andrezito [222]

Answer:

6

Explanation:

6H2O2

H2=6×2=12

O2=6×2=12

H2=12×1   =     12

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               =  204  

=204÷34=6 ANS

4 0
1 year ago
A 7th grade science class placed three large grade A eggs into beakers and recorded the mass. They then filled one beaker with v
lisov135 [29]
Independent- The vinegar,corn syrup, distilled water
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3 0
3 years ago
Find the pH of a 0.350 M aqueous benzoic acid solution. For benzoic add. Ka = 6.5 x 10^-5.
slava [35]

Answer:

correct option is (a)

The solution would be using this: C6H5COOH = H+ + C6H5COO Ka = 6.5 x 10^-5 = (H+)(C6H5COO-) over

(C6H5COOH)

Let X = moles per liter (H+) and also = moles per liter (C6H5COO-)

Ka = 6.5 x 10^-5 = (X)(X) over .350 molar = acid solution 6.5 x 10^-5 = X^2 over .350

X^2 = 6.5 x 10^-5 times .350 which = 2.275 x 10^-5

x = V2.275 x 10^-5

X = 1.5083 x 10^-5 moles per liter H+

pH = -log(H+) = -log 1.5083 x 10^-5 which

= 4.6215

7 0
3 years ago
A sugar cube was placed into a beaker containing 100 mL of water at room temperature and completely dissolved into the water. Th
Bad White [126]

Answer:

Boil the water until it evaporates

Explanation:

If the water evaporates the sugar will no longer bond to it and then percipitate at the bottom of the beaker.

3 0
3 years ago
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