3 years ago

Do meteorologists need instruments

2 answers:

6 0

Meteorological instruments are the hardware used to test the condition of the climate at a given time. Every science has its very own interesting arrangements of lab hardware.

statuscvo [17]3 years ago

5 0

yes because they need to measure places of stars

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3. A 4.0 g sample of iron was heated from 0°C to 20.°C. It absorbed 35.2 J of energy as heat. What is the specific

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3 years ago

Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2

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<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

Reaction

Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂

MW Fe₂O₃ : 159,69 g/mol

mol Fe₂O₃ :

$\tt \dfrac{1.8}{159.69}=0.0113$

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mass CO (MW = 28,01 g/mol) :

$\tt m=mol\times MW\\\\m=0.0339\times 28.01\\\\m=0.950~g$

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