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Likurg_2 [28]
3 years ago
12

where can quartzite be found? (needed for a school powerpoint, if you can link me any helpful websites that would be help so muc

h!)
Chemistry
2 answers:
Anna007 [38]3 years ago
3 0

Answer: "In the United States, you can find quartzite in eastern South Dakota, southwestern Minnesota, the Wasatch Range of Utah, the Baraboo Range of Wisconsin, Central Texas, near Washington, D.C., portions of Pennsylvania, and the mountains of Arizona and California. The town of Quartzite in Arizona takes its name from the rock in the nearby mountains."

Explanation:  .thoughtco.comquartzite-rock-geology-and-uses-4588608 <- Link with answer and more information on quartzite. May not be able to copy and paste because Brainly doesn't let me use a link.

nignag [31]3 years ago
3 0

Answer:

Explanation:

huh

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What word best describes volume
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volume is the amount of space something occupies

Explanation:

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3 years ago
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Who discovered atomic structure​
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John Dalton

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3 years ago
CALCULATOR
suter [353]

Answer: The possible molecular formula will be CO_2

Explanation:

Mass of C= 27.3 g

Mass of O = 72.7 g

Step 1 : convert given masses into moles.

Moles of C =\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{27.3g}{12g/mole}=2.275moles

Moles of O =\frac{\text{ given mass of O}}{\text{ molar mass of O}}= \frac{72.7g}{16g/mole}=4.544moles

Step 2 : For the mole ratio, divide each value of moles by the smallest number of moles calculated.

For C = \frac{2.275}{2.275}=1

For O =\frac{4.544}{2.275}=2

The ratio of C : O = 1: 2

Hence the empirical formula is CO_2

The possible molecular formula will be=n\times CO_2

5 0
3 years ago
Which radioactive emission has the smallest (least) mass? Question options:
Tems11 [23]

Answer:

The answer is D. gamma rays

Explanation:

A radioactive atom can have three different types of emission:

alpha particles (α) = they have a mass of 4 amu and they have a very low penetrating power.

Beta particles (β) = they have 5x10^{-4} amu and they have an intermediate penetrating power

Gamma rays (γ) = they are not particles basically just energy so its mass is ≈ 0 and its penetrating power is higher

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8 0
3 years ago
A sample of oxide iron weighing 2.40g was heated in a stream of hydrogen until it was completely converted to the metal. If the
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Answer:

Fe₂O₃

Explanation:

To solve this question we must find the moles of Iron in 1.68g. With the difference of the masses we can find the moles of oxygen. The formula will be obtained with the ratio of both amount of moles:

<em>Moles Fe:</em>

1.68g * (1mol / 56g)  =0.03moles

<em>Moles O:</em>

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The ratio O/Fe is:

0.045moles / 0.03moles = 1.5 moles. this ratio is obtained if the formula is:

<h3>Fe₂O₃</h3>
4 0
3 years ago
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