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3 years ago

An element that reacts with oxygen to form XO2 compounds and with chlorine to form XCI4 compounds???

Chemistry

1 answer:

yKpoI14uk [10]3 years ago

4 0

Answer:

An element X reacts with oxygen to form XO

and with chlorine to form XCl

. XO

is a white solid that melts at high temperatures (above 1000 degrees C). Under usual conditions, XCl

is a colorless liquid with a boiling point of 58 degrees C.

Explanation:

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(d) What is the mass percentage of water in CdCl2.4H2O?

Zielflug [23.3K]

The mass percentage of water (H₂O) in cadmium chloride tetra hydratesolution is equal to the 28.2%.

<h3>How do we calculate mass percentage?</h3>

Mass percentage of any substabce present in any solution will be calculated as:
Mass percent = (Mass of substance/Total mass of solution)×100%

According to the question,

Mass of water (H₂O) = 18.02 g/mol

Mass of solvent (CdCl₂.4H₂O) = 183.32 + 4(18.02) = 255.4 g/mol

On putting values, we get

Mass percent = (18.02 / 255.4) × 100% = 28.2%

Hence mass percent of water is 28.2%.

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2 years ago

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A balloon is inflated with 1.25 L of helium at a temperature of 298K. What is

Monica [59]

Answer:

What is

the volume of the balloon when the temperature is 310K?

7 0

3 years ago

Constance has an apple that weighs 85,000 milligrams and a peach that weighs 0.15 kilograms. which fruit has the greater mass? c

Rama09 [41]

The fruit which has the greater mass is peach i.e. 150 grams.

Mass is a quantity which is used to define that what amount of substance will occupy any space or present in the given object.

We have given,

Weight of apples = 85,000 mg

Weight of peach = 0.15 kg

To compare the quantity first we have to convert both of these units in the same unit, and we know that:

In 1 kilogram = 1000 grams

And in 1 grams = 1000 milligrams

So, we convert both the units into grams as:

85,000 mg = 85,000 / 1000 = 85 grams

0.15 kg = 150 grams

So, the mass of peach is high.

Hence, peach has the greater mass.

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2 years ago

I have 250 mL of an acid. If a friend gives me another 75 mL of the same acid, how much will I have?

Zigmanuir [339]

Answer:325 mL of acid

Explanation:250 mL + 75 mL = 325 mL

3 0

2 years ago

Calculate the volume of the gas when the pressure of the gas is 1.60 atm at a temperature of 298 K. There are 160. mol of gas in

LekaFEV [45]

Answer:

2445 L

Explanation:

Given:

Pressure = 1.60 atm

Temperature = 298 K

Volume = ?

n = 160 mol

Using ideal gas equation as:

$PV=nRT$

where,

P is the pressure

V is the volume

n is the number of moles

T is the temperature

R is Gas constant having value = 08206 L.atm/K.mol

Applying the equation as:

1.60 atm × V = 160 mol × 0.08206 L.atm/K.mol × 298 K

Answer to four significant digits, Volume = 2445 L

6 0

3 years ago