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2 years ago

The substance which does the dissolving in a solution is

Chemistry

1 answer:

oksano4ka [1.4K]2 years ago

6 0

Answer:

solvents dissolve in liquids

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Which [H+] value describes a neutral solution?

alina1380 [7]

Answer:

It's A) 10 -7 M

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2 years ago

PLEASE ANSWER FAST

Elis [28]

First we need to calculate the number of moles of FeS $_{2}$ :

number of moles = mass (grams) / molecular mass (g/mol)

number of moles of FeS $_{2}$ = 198.2/120 = 1.65 moles

From the chemical reaction we deduce that:

if 4 moles of FeS $_{2}$ produces 8 moles of SO $_{2}$

then 1.65 moles of FeS $_{2}$ produces X moles of SO $_{2}$

X = (1.65×8)/4 = 3.3 moles of SO $_{2}$

Now we can calculate the mass of SO $_{2}$ :

mass (grams) = number of moles × molecular mass (grams/mole)

mass of SO $_{2}$ = 3.3×64 = 211.2 g

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3 years ago

An unknown element, x, reacts with rubidium to form the compound rb2x. in other compounds this element also can accommodate up t

SVETLANKA909090 [29]

There are few elements that can form 12 electron rather than the usual 8. Therefore these are the possible answers:

Sulfur = 2Na + S --> Na2S 
Selenium = 2Na + Se --> Na2Se
Tellurium = 2Na + Te --> Na2Te

6 0

2 years ago

The density of ice is 917 kg/m3. The density of salt water is 1029 kg/m3. A mass of ice is 2.55 x 1013 kg. Calculate the volume

Ksju [112]

Answer:

Volume of salt water, $V_{sw} = 247.74 km^3$

Explanation:

Density of Ice, $\rho_{ice} = 917 kg/m^3$

Density of salt water, $\rho_{sw} = 1029 kg/m^3$

Volume of ice, $V_{ice} = 278 km^3$

Volume of salt water, $V_{sw} = ?$

Mass = Density * Volume

Mass of Ice, $m_{ice} = \rho_{ice}V_{ice}$

Mass of Salt water, $m_{sw} = \rho_{sw}V_{sw}$

Since , $m_{ice} = m_{sw}$

$\rho_{ice}V_{ice} = \rho_{sw}V_{sw}\\\\(917*278) = (1029*V_{sw})\\\\V_{sw} = \frac{254926}{1029} \\\\V_{sw} = 247.74 km^3$

5 0

3 years ago

Select the correct order of the GC components

s344n2d4d5 [400]

Carrier Gas, Flow Controller, Column, Detector, Recorder

First we have a cylinder containing the carrier gas. From there, the carrier gas goes to the flow controller, which determines how much carrier gas we are entering into the column (it doesn’t let more gas pass through). Then, the carrier gas enters the column, which is the most important part of the device. The sample enters the column from another place: the injector. Then, the sample and the carrier gas go together across the column. The interactions between the sample and the column will determine how fast each sample component goes through the column, and so: which component gets out earlier. So, at the end, you will have isolated each substance. Then, each one passes (alone) through the detector, which measures something about the sample – this information will let you know which substance it is. Finally, the recorder provides you with the information the detector has found. Nowadays, the recorder is a computer. In the “stone age” they just used a rudimentary printer.

8 0

3 years ago