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liubo4ka [24]
3 years ago
5

Ulay the tiles to the correct boxes to complete the pairs. Not all tiles will be used

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
3 0
Hydrogen oxygen argon carbon hope you get a 100
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A balloon moving along a straight path experiences a force of
Angelina_Jolie [31]
The net force is 11.1 because 23.5-12.4 is your net force

hope this helps:)
6 0
2 years ago
A solution with [ OH] of 5 x 10-3 has a pH of
CaHeK987 [17]

Answer:

11·699

Explanation:

Given the concentration of hydroxide ion in the solution is 5 × 10^{-3} M

Assuming the temperature at which it is asked to find the pH of the solution be 298 K

<h3>At 298 K the dissociation constant of water is 10^{-14} </h3><h3>∴ pH + pOH = 14 at 298 K</h3><h3>pOH of the solution = -log( concentration of hydroxide ion )</h3>

∴ pOH of the given solution = - log(5 × 10^{-3} = -0·699 + 3 = 2·301

   pH of the given solution = 14 - 2·301 = 11·699

∴ pH of the solution = 11·699                                  

8 0
3 years ago
Which of the following are true about Earth’s axis. Choose the two correct answers.
Citrus2011 [14]

Answer:

B and D

Explanation:

4 0
3 years ago
Name the following compound:
Makovka662 [10]

Answer: The given compound is 1-butene.

Explanation:

In simple hydrocarbons, if there are only single bonds present then the suffix "ane" is added to the name of hydrocarbon.

If there is a double bond then suffix "ene" is added to the name.

If there is a triple bond then suffix "yne" is added to the name.

For example, CH_{2}=CH_{2}-CH_{2}-CH_{3} has one double bond which is at position 1 and there are four carbon atoms present.

Hence, name of this compound is 1-butene.

3 0
3 years ago
Read 2 more answers
How do I balance the chemical equation Ca(s) +O2(g) =CaO(s)
Sever21 [200]

Hey there!

Ca + O₂ → CaO

Balance O.

2 on the left, 1 on the right. Add a coefficient of 2 in front of CaO.

Ca + O₂ → 2CaO

Balance Ca.

1 on the left, 2 on the right. Add a coefficient of 2 in front of Ca.

2Ca + O₂ → 2CaO

Our final balanced equation: 2Ca + O₂ → 2CaO

Hope this helps!

7 0
3 years ago
Read 2 more answers
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