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Dafna1 [17]
3 years ago
14

Assessment

Chemistry
1 answer:
Lilit [14]3 years ago
5 0

Answer:

how do i calculate that?tell me how and i will try to do your math

You might be interested in
2 Which two substances cause iron to rust?
guapka [62]

Answer:

water and oxygen

Explanation:

this is because

iron + water + oxygen ----> hydrated iron (III) oxide (which is rust in lame terms )

hope this helps

please mark it brainliest

8 0
3 years ago
What volume does 4.24g of argon gas occupy at 58.2 degrees celcuis and 1528torr
Radda [10]

The volume occupied by the argon gas is, 1.44 L

Explanation :

To calculate the volume of argon gas we are using ideal gas equation:

PV=nRT\\\\PV=\frac{w}{M}RT

where,

P = pressure of argon gas = 1528 torr = 2.010 atm

Conversion used : (1 atm = 760 torr)

V = volume of argon gas = ?

T = temperature of argon gas = 58.2^oC=273+58.2=331.2K

R = gas constant = 0.0821 L.atm/mole.K

w = mass of argon gas = 4.24 g

M = molar mass of argon gas = 39.95 g/mole

Now put all the given values in the ideal gas equation, we get:

(2.010atm)\times V=\frac{4.24g}{39.95g/mole}\times (0.0821L.atm/mole.K)\times (331.2K)

V=\frac{4.24g}{39.95g/mole}\times \frac{(0.0821L.atm/mole.K)\times (331.2K)}{2.010atm}

V=1.44L

Therefore, the volume of occupied by argon gas is 1.44 L

7 0
3 years ago
Hat type of mixture is chicken noodle soup?
Lera25 [3.4K]
Heterogeneous mixture. cause you can separate the noodles from soup
4 0
3 years ago
what has changed in the atmosphere that give the rock strata the appearance of rust?(red/orange color).
77julia77 [94]

Answer:

Explained below.

Explanation:

What has changed in the atmosphere is that oxidation has occurred where an oxidizing chemical specie has reacted with an oxygen containing compound.

Now these chemicals when they react with rain and fall on rocks react with the rocks to weaken them in a process known as chemical weathering.

Now when this weathering from the oxidizing chemicals from the rain react with rocks that contain iron, it leads to the rock having an appearance of rust.

7 0
3 years ago
According to the following reaction, how many grams of hydrogen peroxide (H2O2) are needed to form 32.0 grams of oxygen gas?
Nesterboy [21]

Answer:

The answer to your question is 34 g of H₂O₂    

Explanation:

Data

mass of H₂O₂ = ?

mass of O₂ = 32 g

Process

1.- Write the balanced chemical reaction

                   H₂O₂  ⇒   H₂  +  O₂

2.- Calculate the molar mass of H₂O₂ and O₂

Molar mass H₂O₂ = (1 x 2) + (16 x 2) = 34 g

Molar mass of O₂ = 2 x 16 = 32 g

3.- Use proportions to calculate the mass of O₂

                    34g of H₂O₂ -------------- 32g of O₂

                     x                   -------------- 32g of O₂

                          x = (32 x 34) / 32

                          x = 34 g of H₂O₂                                

5 0
3 years ago
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