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3 years ago

Are pizza boxes recyclable?

Chemistry

1 answer:

shtirl [24]3 years ago

4 0

Yes they are because they are cardboard and people can make things out of cardboard

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When the human body perceives internal and external stimuli, it responds to maintain a stable internal environment. What is an e

slava [35]

Thirst is an internal stimuli which notifies an individual on the decreased amount of water in the body. This stimuli arises when the amount of water in the body cells has decreased beyond a certain level. This usually occurs after sweating since there is increased loss of water from the body which needs to be replaced.

5 0

4 years ago

Read 2 more answers

The force needed to make an object with a mass of 5kg accelerate at 10 m/sec2 = Question 5 options:

astraxan [27]

Explanation:

<h3>Here, mass = 5kg </h3><h3> acceleration = 10m/s^2</h3>

<h3>according to the question ;</h3><h3>F = m×a ( from 2nd law of motion)</h3><h3>F = 5kg × 10m/s^2</h3><h3>F = 50kgm/s^2 or NEWTON </h3>

<h3>SO THE FORCE NEEDED IS 50 NEWTON</h3>

<h2>I HOPE THAT THIS ANSWER HELPS YOU </h2>

8 0

3 years ago

One way to represent this equilibrium is: 2 Al(s) 3 Br2(l)2 AlBr3(s) We could also write this reaction three other ways, listed

myrzilka [38]

The question is incomplete, the complete question is;

Aluminum metal and bromine liquid (red) react violently to make aluminum bromide (white powder). One way to represent this equilibrium is:

Al(s) + 3/2 Br2(l)AlBr3(s)

We could also write this reaction three other ways, listed below. The equilibrium constants for all of the reactions are related. Write the equilibrium constant for each new reaction in terms of K, the equilibrium constant for the reaction above.

1) 2 AlBr3(s) 2 Al(s) + 3 Br2(l)

2) 2 Al(s) + 3 Br2(l) 2 AlBr3(s)

3) AlBr3(s) Al(s) + 3/2 Br2(l)

Answer:

See explanation

Explanation:

We have that; Al(s) + 3/2 Br2(l)AlBr3(s)

So;

Al(s) + 3/2 Br₂(l) = AlBr₃(s)

K = [ AlBr₃] / [ Al] [ Br₂]³/²

K² = [ AlBr₃]² / [ Al ] ² [ Br₂]³

Now;

1) 2 AlBr₃ = 2 Al(s) + 3 Br₂(l) =

K₁ = [ Al ] ² [ Br₂]³ / [ AlBr₃]²

K₁ = ( 1 / K² ) = K⁻²

For the second reaction;

2 ) 2 Al(s) + 3 Br₂(l) = 2 AlBr₃(s)

K₂ = [ AlBr₃ ]² / [ Al ]² [ Br₂ ]³

K₂ = K²

For the third reaction;

3 )

AlBr₃(s) = Al(s) + 3/2 Br₂(l)

K₃ = [ Al ] [ Br₂ ] ³/² / [ AlBr₃ ]

= ( 1 / K ) = K⁻¹

7 0

3 years ago

What metal has the largest atomic radius in period 4 (78 points)

marysya [2.9K]

Answer:

The element potassium(K) with atomic number 19 has the largest atomic radius ( around 225 picometers ).

Explanation:

There is the general expected decrease from left to right with increasing nuclear charge without quantum level expansion or increase in shielding and so pulling the outer electrons closer. The 3d block of metals (Z = 21 to 30) tend to be similar and in fact tend to go through a small minimum at Mn/Fe.

The potassium been on the left most part of period , has largest radius due to least nuclear pulling effect.