2 years ago

The mineral quartz has a chemical formula of SiO2. What is the formal name for this compound?

Physics

2 answers:

igomit [66]2 years ago

8 0

Answer:

Silicon dioxide

Explanation:

lana66690 [7]2 years ago

3 0

Answer:

Silicon Dioxide

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m = 40.88 g

Explanation:

Given data:

We know that Ice at zero degree celcius convert into liquid form by observing heat

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heat required or relaesed to convert 50 gram of water at 65 degree c to zero degree celcius

let mass of ice is m

$50 \times\ (1 cal/g) \times (65-0) = m(79.5) cal/g$

where 1 cal/g os specific heat of water

solving for m

$m = \frac{50\times 65}{79.5} g$

m = 40.88 g

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