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3 years ago

what biome has many nocturnal animals that burrow underground during the day that are active at night

Chemistry

1 answer:

hram777 [196]3 years ago

4 0

Answer:

it could be maybe a raccoon or a possum

Explanation:

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A solution contains 0.140 mol KCl in 2.100 L water. What is the concentration of KCl in g/L?

viva [34]

<h3><u>Answer</u>;</h3>

≈ 4.95 g/L

<h3><u>Explanation;</u></h3>

The molar mass of KCl = 74.5 g/mole

Therefore; 0.140 moles will be equivalent to ;

= 0.140 moles × 74.5 g/mole

= 10.43 g

Concentration in g/L

= mass in g/volume in L

= 10.43/2.1

= 4.9667

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3 years ago

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MrMuchimi

Some forms of transportation are meant for small short trips while other forms of transportation are meant for big long trips

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3 years ago

Why cant you use pure sodium for cooking

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Pure sodium can severely harm your body (toxic) which can lead to death

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3 years ago

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When a certain powder is mixed into a solution of silver nitrate, a white precipitate forms. When the powder is added to a solut

atroni [7]

Answer:

Ammonium chloride

Explanation:

The powder is:- Ammonium chloride

When mixed with silver nitrate, white prescipitate of silver chloride is formed as:-

$NH_4Cl+AgNO_3\rightarrow NH_4NO_3+AgCl$

When mixed with sodium hydroxide, ammonia gas is formed which has noxious order.

$NH_4Cl +NaOH\rightarrow NH_3 + H_2O + NaCl$

Ammonia gas on reaction with nickel (II) hydroxide forms deep blue colored complex as shown below:-

$Ni(OH)_2(s) + 6NH_3(aq)\rightarrow [Ni(NH_3)_6]^{2+}(aq) + 2OH^{-}(aq)$

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3 years ago

Point E is located at (-2, 2) and point F is located at (4-6). What is the distance between

Flauer [41]

Answer:

Explanation:

Given endpoints:

E (-2,2) and F(4, -6)

To find the distance between two points;

Use the expression below;

D = $\sqrt{(y_{2} - y_{1} )^{2} + (x_{2} - x_{1})^{2} }$

x₁ = -2,

x₂ = 4

y₁ = 2

y₂ = -6

Insert the parameters and solve;

D = $\sqrt{(-6 - 2 )^{2} + (4 -+ 2)^{2} }$

D = $\sqrt{64+ 36 }$ = 10

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3 years ago