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2 years ago

Give 2 reasons that tea is a mixture or solutions

Chemistry

1 answer:

cricket20 [7]2 years ago

4 0

Answer:

Tea is a solution of compounds in water, so it is not chemically pure.

Explanation:

It is usually separated from tea leaves by filtration. B Because the composition of the solution is uniform throughout, it is a homogeneous mixture.

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With a manual transmission, the speed of the vehicle determines

const2013 [10]

Hmm, well depending on your speed depends on what gear you select, and not much else related to manual transmissions specifically (if it wasn't just manuals it could be anything from air resistance to noise in the car).

So I'd assume that:
With a manual transmission, the speed of a vehicle determines which gear you should select.

5 0

2 years ago

A gas has a volume of 590ml at a tempature of -55.0 Celsius. What volume will the gas occupy at 30.0 Celsius? Show your work

Nana76 [90]

It will equal to 1,532ml

7 0

2 years ago

How many grams of magnesium metal will react completely with 6.3 liters of 4.5 M HCl? Show all of the work needed to solve this

Rufina [12.5K]

Mg (s) + 2 HCl (aq) -> MgCl2 (aq) + H2 (g)

1) Number of mols of HCl, n

n = 6.3 L * 4.5 mol/L = 28.35 mol

2) ratio: 2 mol HCl / 1 mol Mg = 28.35 mol HCl / x mol Mg

x = 28.35 mol HCL * 1 mol Mg / 2 mol HCL = 14.175 mol Mg

3) Convert mol to mass using atomic mass of Mg

14.175 mol Mg * 24.3 g Mg / mol Mg = 344. 45 g

Answer: 344.45 g

5 0

3 years ago

In which chemical system is molecule to ion attractions present? A) KNO3(s) B) KNO3(l) C) KNO3(aq) D) KNO3(g)

Maurinko [17]

Answer:

$KNO_3 (aq)$

Explanation:

Potassium nitrate is a soluble salt which readily dissolves in a polar solvent, such as water. When solid potassium nitrate is dissolved in water, it dissociates into potassium cations and nitrate anions.

Due to the resultant ionic charges, the polar water molecules attract the resultant ions and potassium nitrate ions become hydrated, that is, surrounded by water molecules.

Nitrate, our anion, attracts the partially positive ends of water molecules by attracting them via hydrogen atom.

Potassium, the cation, attracts the partially negative end of water molecules by attracting via oxygen atom.

3 0

2 years ago

Hydrogen gas is collected over water in an inverted buret. If the atmospheric pressure is 745 mm Hg, the vapor pressure of water

Varvara68 [4.7K]

Answer:

$P_{H_2}=727mmHg$

Explanation:

Hello there!

In this case, according to the given data, it is possible to infer that the gas mixture lies on the 15.0 cm-high column of water, so that the total pressure or atmospheric pressure is given by:

$P_{atm}=P_{water}+P_{H_2}$

Thus, since the atmospheric pressure is 745 mmHg and the vapor pressure of water is 18 mmHg, the pressure of hydrogen turns out to be:

$P_{H_2}=P_{atm}-P_{water}\\\\P_{H_2}=745mmHg-18mmHg\\\\P_{H_2}=727mmHg$

Best regards!

6 0

2 years ago

Give 2 reasons that tea is a mixture or solutions​

Give 2 reasons that tea is a mixture or solutions