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kow [346]
3 years ago
7

Cual es la masa atomica promedio ​

Chemistry
2 answers:
kkurt [141]3 years ago
8 0

Answer:

                                                                 

Explanation:

Tamiku [17]3 years ago
3 0
La masa atómica promedio de un elemento es la suma de las masas de sus isótopos.
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acetic acid

Explanation:

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2. Which pair of elements does not form an ionic bond?
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\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the concept of Bond Formation.

Answer is :-

B.) O and Cl

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2. The most recent ice age ended about
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Answer:

The most recent ice age ended about 10,000 years ago

Explanation:

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A sprinter set a high school record in track and field, running 200.0 m in 21.7 s . What is the average speed of the sprinter in
Yuliya22 [10]

Given data:

Distance travelled (d)= 200.0 m

Time taken (t) = 21.7 s

To determine:

The average speed in km/hr

Calculation:

Convert distance from m to km

1000 m = 1 km

200.0 m = 1 km * 200.0 m/1000 m = 0.2 km

Convert time from sec to hours

3600 sec = 1 hour

21.7 sec = 1 hour * 21.7 sec/3600 sec = 6.027 *10^-3 hrs

Speed is defined as the amount of distance travelled per unit time

Speed = distance/time = 0.2 km/6.027*10^-3 hr

           = 33.18 km/hr (or 33.2 km/hr)

7 0
3 years ago
To cook food, a microwave oven converts electrical energy into ________ energy. A) electromagnetic B) heat C) mechanical D) nucl
Mariana [72]

Answer: Option (B) is the correct answer.

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7 0
4 years ago
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