All categories

3 years ago

If elements in group 17 of the periodic table, what do they have the same of?

Chemistry

1 answer:

garik1379 [7]3 years ago

5 0

Number of valence electrons (they all have 7 valence electrons)

You might be interested in

The gases that surround Earth or another planet.

yan [13]

Answer:

i think that it is an atmosphere.

Explanation:

3 0

4 years ago

An airplane travels 2100 km at 1000km/hE. It encounters a wind and slows to 800 km/h E for the next 1300 km. What is the average

Deffense [45]

Answer:

The average velocity of the airplane for this trip is 1684.21 km/h

Explanation:

Average velocity is the rate of change of displacement with time. That is,

Average velocity = $\frac{Displacement }{Change in time}$ = Δx / Δt = $\frac{x2 - x1}{t2 - t1}$

Now we will calculate the time taken by the airplane for the first motion before it encounters a wind.

From,

Velocity = $\frac{Distance traveled}{Time taken}$

Time = $\frac{Distance traveled}{Velocity}$

Therefore, Time = $\frac{2100km }{1000km/h}$

Time = 2.1h

This is the time taken before the airplane encounters a wind.

Hence, t1 = 2.1h

Now, For the time taken by the airplane when it encounters a wind

Also from,

Velocity = $\frac{Distance traveled}{Time taken}$

Time = $\frac{Distance traveled}{Velocity}$

Therefore, Time = $\frac{1300km }{800km/h}$

Time = 1.625h

Hence, t2 = 1.625h

Now, to calculate the average velocity

Average velocity = $\frac{x2 - x1}{t2 - t1}$

x1= 2100, x2= 1300, t1= 2.1h and t2= 1.625h

Hence, Average velocity = $\frac{1300 - 2100}{1.625 - 2.1}$

Average velocity = 1684.21 km/h

7 0

3 years ago

WHO INVENTED THE LIGHT BOLD, WHO EVER GETS THE ANSWER RIGHT GETS A THANK YOU FROM ME

aivan3 [116]

This is a hard question because BEING BOLD cant be light ya know... but the light bulb.. thomas edison and joseph swan

5 0

3 years ago

Read 2 more answers

What is the result of having two batteries on an electric motor

aleksley [76]

Answer:

Well bro lemme tell u,

by connecting batteries, you can increase the voltage, amperage, or both.

Explanation:

8 0

3 years ago

What type of rock would be formed in this plant-rich swamp?

adell [148]

We are asked to identify what type of rock would be formed in a plant-rich swamp. We all know that plant dies and the remain leaves in the soil called peat. Temperature, pressure and heat causes the remains to submerged under the soil bed layer and converts it into a waxy substance called kerogen. Kerogen then mixes with the rock under the soil bed layer to create what is called an oil shale. Oil shale is somehow similar to a coal. Both creates an energy when ignited. Therefore the correct answer to the question being asked is COAL or Oil Shale.

7 0

3 years ago