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natulia [17]
3 years ago
9

An igneous rock is composed primarily of quartz and feldspar. what type of magma most likely formed this rock?

Chemistry
2 answers:
Zarrin [17]3 years ago
8 0

Answer:

4. Felsic

Explanation:

This is a felsic magma.

A felsic magma has high content of silicate minerals. Quartz and feldspar are silicate minerals with a high content of silica in them. Magma with such a rich composition of quartz and feldspar is known as a felsic magma.

A mafic magma is one with low silica content.

valentina_108 [34]3 years ago
7 0

Answer:

Felsic

Explanation:

I just took the test!

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D. Write the name of the branched alkane next to the drawing of the molecule. (2 points)
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7 0
3 years ago
What is the mass of a piece of iron that releases 179.85 joules of heat as it cools from 51.29 degrees Celsius to 31.42 degrees
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Answer:

20.11 g.

Explanation:

What is given?

c (specific heat of iron) = 0.450 J/g °C.

Q (heat energy) = 179.85 J.

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What do we need? Mass of iron (m)

Step-by-step solution:

Let's see the formula of specific heat:

c=\frac{Q}{m\cdot\Delta T}

Where c is specific heat, Q is heat energy, m is mass and ΔT is the change of temperature.

We just have to solve for 'm' to find the mass of iron and replace the given data that we have, like this:

m=\frac{Q}{c\cdot\Delta T}=\frac{179.85\text{ J}}{0.450\text{ }\frac{J}{g\cdot\degree C}\cdot19.87\degree C}=20.11\text{ g.}

The mass of the iron would be 20.11 g.

5 0
1 year ago
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