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Lady bird [3.3K]
3 years ago
12

How do I do this? It's in Chemistry, and it has to do with Single Replacement

Chemistry
1 answer:
Setler [38]3 years ago
4 0
Is there any more to the picture?
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Equilibrium systems exist throughout nature.<br> True or False??
Natali5045456 [20]
I think the answer is true
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4 years ago
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Question 22 3 p Use Bowen's Reaction Series to describe how different igneous rocks form from a single body of magma. Which spec
Leokris [45]

Answer:

The Bowen's reaction series describes how minerals form in sequential order, forming at higher temperature to a lower temperature. There are two branches of crystallization, one is the continuous branch that is on the right and the other is the discontinuous branch that is on the left.

The minerals that are at the top of the Bowen's reaction series forms at a higher temperature.  

In the discontinuous branch, the first mineral to crystallize from the melt is Olivine that forms at a higher temperature of about 1400°C. After crystallization, some melt remains and undergoes fractional crystallization leading to the formation of Pyroxene. Again, with the remaining melt, it reacts and forms Amphibole, followed by Biotite (mica).

In the continuous branch, the first minerals to form are the calcium-rich minerals and successively forms sodium-rich minerals. These minerals that form at a higher temperature are basic in nature and gradually change into acidic minerals.

From both the branches, it commonly forms the mineral Potassium feldspar. After this, the remaining melt combines with the magma and forms Muscovite (Mica), and at a temperature of about 650°C, it forms a more resistant and stable mineral known as the Quartz.

4 0
3 years ago
You have an unknown quantity of oxygen at a pressure of 2.2 atam, a volume of 21 liters and a temperature of 87 Celsius. How man
laila [671]

<span>Let's assume that the oxygen gas has ideal gas behavior. 
Then we can use ideal gas formula,
      PV = nRT</span>


Where, P is the pressure of the gas (Pa), V is the volume of the gas (m³), n is the number of moles of gas (mol), R is the universal gas constant ( 8.314 J mol⁻¹ K⁻¹) and T is temperature in Kelvin.

<span>
P = 2.2 atm = 222915 Pa
V = 21 L = 21 x 10</span>⁻³ m³

n = ?

R = 8.314 J mol⁻¹ K⁻¹

<span> T = 87 °C = 360 K

By substitution,
</span>222915 Pa x 21 x 10⁻³ m³ = n x 8.314 J mol⁻¹ K⁻<span>¹ x 360 K
                                       n = 1.56</span><span> mol</span>

<span>
Hence, 1.56 moles of the oxygen gas are </span><span>left for you to breath.</span><span>
</span>
6 0
3 years ago
True or false - The electrostatic attraction of the nucleus and the outermost electron increases as you go down the group.
Mashutka [201]

Answer:

its true

Explanation:

3 0
3 years ago
A 125 ml sample of gas is at STP how many moles of gas are in the sample
IRINA_888 [86]

Answer:

5.58*10⁻³ moles of gas are in the sample.

Explanation:

The STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.

Being 1000 mL equivalent to 1 L, then 125 mL is equal to 0.125 L. Then you can apply the following rule of three: if by STP conditions 22.4 L are occupied by 1 mole, 0.125 L are occupied by how many moles?

amount of moles=\frac{0.125 L*1 mole}{22.4 L}

aomunt of moles= 5.58*10⁻³ moles

<u><em>5.58*10⁻³ moles of gas are in the sample.</em></u>

4 0
3 years ago
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