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2 years ago

Identify the reaction type shown and describe the clues that were used to identify it. Fe2O3 + 2SiO2 → Fe2Si2O7

1 answer:

6 0

The type of reaction of Fe2O3 + 2SiO2 → Fe2Si2O7 would be that it is a synthesis reaction. It is a type of chemical reaction in which two or more simple substances combine to form a more complex product.

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Who is your favorite scientist?

slega [8]

Wait a second shoudl YOU do this one cause this is more of a YOU how am i suppose to know who you like?

i could give you a scientist just try albert Einstein

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2 years ago

Is aluminum foil an element, compound or mixture

lora16 [44]

It is an element. Aluminun foil is aluminum prepared in thin leaves.

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2 years ago

Read 2 more answers

According to Newton’s first law of morion when will an object at rest begin to move?

Sati [7]

Hello There!

According to "Newton's First Law" an object at rest will begin to move when it is acted upon an unbalanced force.

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2 years ago

a sample of compound determined to contain 1.71 g C and 0.287 g H. The corresponding empirical formula is

fiasKO [112]

Answer: The empirical formula is $CH_2$ .

Explanation:

Mass of C = 1.71 g

Mass of H = 0.287 g

Step 1 : convert given masses into moles.

Moles of C = $\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{1.71g}{12g/mole}=0.142moles$

Moles of H = $\frac{\text{ given mass of H}}{\text{ molar mass of H}}= \frac{0.287g}{1g/mole}=0.287moles$

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

For C = $\frac{0.142}{0.142}=1$

For H = $\frac{0.287}{0.142}=2$

The ratio of C: H = 1: 2

Hence the empirical formula is $CH_2$ .

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2 years ago

Please answer 11 and 12, I'm not sure of my answers and I'm gonna be tested on this tomorrow. Thanks!

Novay_Z [31]

11. I would say physical because the color of the item is changed and the texture and density is changed aswell.

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2 years ago