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Tasya [4]
3 years ago
11

Which one of these samples contains the smallest number of molecule?

Chemistry
1 answer:
erma4kov [3.2K]3 years ago
8 0

Answer:

E) 1.0L of He at STP

Explanation:

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Why couple use a method of birth control
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because it will control the birth of a child which can happen alot being overpopulated in the country or world. It also can mange their life and create a small and happy and healthy family.Also the child can get more love and support from their parents if they have less children and it wont be a taruma for the couple as well.  because growing a child can be expensive time costly and really hard.  

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Explanation:

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Predict how many electrons will Li (lithium) most likely be gained or lost
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4 0
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If you subtract an objects starting velocity from its final velocity and divide by the time it took to change velocity, what are
amid [387]
Change in velocity over time is acceleration. 

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3 years ago
When an arrhenius base is placed in h20 the only negative ion present in the solution is?
melamori03 [73]
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Example of Arrhenius Bases:

                         
NaOH ₍s₎ → Na⁺ ₍aq₎  +  ⁻OH ₍aq₎

                         LiOH ₍s₎ → Li⁺ ₍aq₎  +   ⁻OH ₍aq₎
Result:
           The only negative ion produced in water when Arrhenius Base is dissolved is ⁻OH (Hydroxyl Ion).
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How many neutrons does an element have if its atomic number is 42 and its mass number is 155? (10 Points)
sertanlavr [38]

The Element would have 197 neutrons

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