3 years ago

One atom of silicon can properly combined in a compound with

1 answer:

8 0

The correct answer should be two oxygen atoms. That's because it's properties are similar to carbon insofar that it can form four bonds, so if it forms bonds with 2 oxygen atoms then it will have all four bonds created since Oxygen forms double bonds. This would make SiO2 which is also known worldwide as silica.

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What is the formula unit for a compound made from Pb4+ and oxygen?

Volgvan

Maybe Lead and Oxygen?

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A 72.0-gram piece of metal at 96.0 °C is placed in 130.0 g of water in a calorimeter at 25.5 °C. The final temperature in the ca

tekilochka [14]

Answer: The answer is S = 0.1528 cal/g °C

Explanation:

By the law of conservation of energy, energy is neither created nor destroyed.

So, energy lost by metal pieces is equal to the energy gained by water in the calorimeter.

Specific heat of water is 1 cal/g °C

⇒ heat energy Q = mSΔT, where m = mass of a substance

S = specific heat

ΔT = change in temperature

Now, the heat lost by metal piece, Q = 72×S×(96-31)

= 4680×S cal

Heat gained by water, Q = 130×1×(31-25.5)

= 715 cal

⇒ 4680×S = 715.

⇒ S = 0.1528 cal/g °C.

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3 years ago

The soil of an agricultural field is too basic what can we do to correct it

katen-ka-za [31]

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you can correct it by adding an acid to make it neutral or less basic

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3 years ago

Cual es la contribucion importante de los alquimistas

Lelechka [254]

Answer:

Hello

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3 years ago

1. What is the Charlotte? A. A train B. A car D. An airplane C. A ship

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Answer:

B is the Charlotte

Explanation:

it is Charlotte because it has 4 wheels

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