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Galina-37 [17]
3 years ago
15

How many grams of BF3 would you weigh out to make the following solution: 90.0 mL of 1.20 M BF3?

Chemistry
1 answer:
Alona [7]3 years ago
6 0

Don't stay awake for too long

Don't go to bed

I'll make a cup of coffee for your head

I'll get you up and going out of bed

Yeah

I don't wanna fall asleep

I don't wanna pass away

I been thinking of our future 'cause I'll never see those days

I don't know why this has happened

But I probably deserve it

I tried to do my best

But you know that I'm not perfect

I been praying for forgiveness

You've been praying for my health

When I leave this earth

Hoping you'll find someone else

'Cause yeah, we still young there's so much we haven't done

Getting married, start a family

Watch your husband with his son

I wish it could be me

But I won't make it off this bed

I hope I go to heaven

So I see you once again

My life was kinda short

But I got so many blessings

Happy you…

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En la electrosis del cloruro de sodio (Na Ci) el cloruro es atraido por elcatodo. Falso o verdadero. Y porque?
hram777 [196]

Answer:

Falso

Explanation:

La electrólisis es la descomposición de una solución cuando la corriente continua se pasa a través de ella.

La corriente entra y abandona el electrolito a través de los electrodos. El electrodo positivo se llama el ánodo mientras el electrodo negativo se llama cátodo.

Los iones positivos se mueven hacia el cátodo, mientras que los iones negativos se mueven hacia el ánodo.

Dado que el cloruro es un ion negativo, se mueve hacia el ánodo y no hacia el cátodo.

8 0
3 years ago
A sample of helium gas initially at 37.0°C, 785 torr and 2.00 L was heated to 58.0°C while the volume expanded to 3.24 L. What i
spayn [35]

Answer:

0.681 atm

Explanation:

To solve this problem, we make use of the General gas equation.

Given:

P1 = 785 torr

V1 = 2L

T1 = 37= 37 + 273.15 = 310.15K

P2 = ?

V2 = 3.24L

T2 = 58 = 58+273.15 = 331.15K

P1V1/T1 = P2V2/T2

Now, making P2 the subject of the formula,

P2 = P1V1T2/T1V2

P2 = [785 * 2 * 331.15]/[310.15 * 3.24]

P2 = 515.715 Torr

We convert this to atm: 1 torr = 0.00132 atm

515.715 Torr = 515.715 * 0.00132 = 0.681 atm

8 0
3 years ago
Which statement best describes the relationship between the giraffe and the tree shown above?
Dominik [7]

Answer

a

Explanation:

the giraffe doesn't need carbon dioxide

8 0
3 years ago
A 125g sample of a mixture of salt and sand contains 12% salt.
natka813 [3]
12 % salt is present in 125 g mixture of salt and sand.
Keep in mind that the total percentage is always 100 %
Therefore, if 12 % is the salt, remaining 88 % must be
sand.
a. The amount of mixture is 125 q. Here, 12 % of 125 is
12 * 125 / 100 = 15 g of salt is present in 125 g mixture.
b. The amount of sand can be calculated similarly, 88 %
of 125 g is 88 * 125 / 100 = 110 g of sand is present in
125 g mixture.
4 0
2 years ago
If you had a bottle that contained 5.69x1024 molecules of water, how many
Valentin [98]
Yeah what the other person said ^
6 0
2 years ago
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