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ryzh [129]
3 years ago
14

Select the correct answer Giving brainliest

Chemistry
1 answer:
ANEK [815]3 years ago
6 0

Answer:

it is the bowling ball is the correct one

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Chemical weathering may be caused by _______________.
Amiraneli [1.4K]
Chemical weathering can be caused by oxidation, dissolution, and hydrolysis 
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3 years ago
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Why must a chemical equation be balanced before you can determine mole ratios
iVinArrow [24]
Calculate the number of moles for each element. n=m/M Then compare, and which ever one is lowest is the limiting reactant because no more products can form without one or the other.
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3 years ago
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A 1.00 L flask is filled with 1.15 g of argon at 25 ∘C. A sample of ethane vapor is added to the same flask until the total pres
tatiyna

Answer:

The partial pressure of argon in the flask = 71.326 K pa

Explanation:

Volume off the flask = 0.001 m^{3}

Mass of the gas = 1.15 gm = 0.00115 kg

Temperature = 25 ° c = 298 K

Gas constant for Argon R = 208.13 \frac{J}{kg k}

From ideal gas equation P V = m RT

⇒ P = \frac{m R T}{V}

Put all the values in above formula we get

⇒ P = \frac{0.00115}{0.001} × 208.13 × 298

⇒ P = 71.326 K pa

Therefore, the partial pressure of argon in the flask = 71.326 K pa

4 0
4 years ago
The formula B+ O2_ B2O3 is balanced as
julsineya [31]

Hey there!

B + O₂ → B₂O₃

Balance O.

2 on the left, 3 on the right. Add a coefficient of 3 in front of O₂ and a coefficient of 2 in front of B₂O₃.

B + 3O₂ → 2B₂O₃

Balance B.

1 on the left, 4 on the right. Add a coefficient of 4 in front of B.

4B + 3O₂ → 2B₂O₃

Our final balanced equation: 4B + 3O₂ → 2B₂O₃

Hope this helps!

5 0
3 years ago
In a laboratory investigation, an HCl(aq) solution with a pH value of 2 is used to determine the molarity of a KOH(aq) solution.
guapka [62]

Answer:

blue

Explanation:

KOH is a base therefore it's pH will be above seven. According to table M when tested with the indicator bromcreeol green The solution will turn blue

5 0
4 years ago
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