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grandymaker [24]
3 years ago
5

Which element easily loses one electron to form a positive ion? A. Magnesium (Mg) B. Lithium (Li) C. Nitrogen (N) D. Fluorine (F

)
Chemistry
1 answer:
gladu [14]3 years ago
3 0

Answer: Lithium (Li)

Explanation:

Once it loses its only valence electron, there’s no longer a negative charge.

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A car travels 150 meters in 3.5 seconds what is its speed?
defon

Answer:

The solution is given below.

Explanation:

Speed   = Distance(m)/Time(sec.)

Distance traveled = 150 m

Time taken = 3.5 seconds

Speed of car = 150/3.5 = 42.86 m/s

So the car traveled at a speed of 42.86 m/s.

6 0
3 years ago
This is hard, isn't it? please help me though. PLEASE
Liono4ka [1.6K]
I think it might be A. i am not totally sure though
6 0
2 years ago
A hiker has packed a bag of chips as a snack. At the start of the hike the pressure was 1.5 atm and the temperature was 35*C. At
Mazyrski [523]
According to <span>Gay-Lussac's Law the temperature and Pressure are directly proportional to each other if the amount and volume of given gas are kept constant.
Mathematically for initial and final states it is expressed as,

                                          P</span>₁ / T₁  =  P₂ / T₂     ----- (1)
Data Given;
                  P₁  =  1.5 atm

                  T₁  =  35 °C + 273  =  308 K

                  P₂  =  ?

                  T₂  =  0 °C + 273  =  273 K

Solving Eq. 1 for P₂,

                                   P₂  =  P₁ T₂ / T₁

Putting values,
                                   P₂  =  (1.5 atm × 273 K) ÷ 308 K

                                   P₂  =  1.32 atm
Result:
           As the temperature is decreased so the pressure also decreases from 1.5 atm to 1.32 atm. Therefore the bag will contract.
5 0
3 years ago
Question
hram777 [196]
I think it’s false : D
4 0
3 years ago
What is the average kinetic energy of any substance at 0 K?
Aloiza [94]
The answer is zero!

let me know if you need help with anything else! :)
5 0
3 years ago
Read 2 more answers
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