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I am Lyosha [343]
3 years ago
11

Someone please help me with my quiz about Moles for chemistry!

Chemistry
2 answers:
astra-53 [7]3 years ago
5 0

Answer:

A

C

A

Explanation:

Iam not sure if it's correct

lana66690 [7]3 years ago
3 0

ANSWER;

1: D

2: C

3: A

THANKS ME LATER

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A 3.00 g mass of compound x was added to 50.0 g of water and it is found that the freezing point has decreased by 1.25 degrees c
zloy xaker [14]

Answer:

yes

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Luca wants to identify and quantity the chemicals causing air pollution in a city, but he is using a manual air sampler to colle
xenn [34]

Answer

Manual samplers are prone to effects of temperature, speed of wind and air concentrations.

Explanation

Manual samplers face several challenges that can act as drawbacks to obtaining accurate results. They are subjected to effects of sampling duration where long sampling times are needed to obtain adequate mass for detection. Manual samplers face challenges when measuring non-volatile species because particles are observed into the adsorption medium at a slower rate of diffusion.

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3 years ago
Which of the following are polyatomic ions? Check all that apply
stellarik [79]

Answer:

NH4 is the correct ans

Explanation:

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6 0
3 years ago
For some disorders, any child, male or female, would have to inherit two copies of the affected gene.
saw5 [17]

Answer:

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Explanation:

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4 0
2 years ago
How many grams of chlorine gas can be produced when 50.0 grams of aluminum chloride decompose? 2AlCl3→ 2Al + 3Cl2
lianna [129]

Answer:

Explanation:

Approx.

425

⋅

g

Explanation:

2

A

l

(

s

)

+

3

C

l

2

(

g

)

→

2

A

l

C

l

3

(

s

)

You have given a stoichiometrically balanced equation, so bravo.

The equation explicitly tells us that

54

⋅

g

of aluminum metal reacts with

6

×

35.45

⋅

g

C

l

2

gas to give

266.7

⋅

g

of

aluminum trichloride

hope this helps

6 0
3 years ago
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