Learn more about our help with Assignments: Chemistry
Search & Filtering
A 30g sample of ore contains 25g of haematite, Fe2O3. What mass of iron could be extracted?
How many atoms of nitrogen are in 10.0g of N2O5 ?
Glucose has the formula C6H12O6. What is the maximum mass of carbon that could be obtained from 200.00g of glucose?
If 8.66 X 1021 atoms are removed from 0.055 mole of iron, what mass of iron remains?
Which has a lower frequency, radio waves or green light?
write a balanced chemical equation for : so2 + 02≷ so2
Compare the energetics of metabolic oxidation of glucose and a fatty acids
How many atoms of copper are in 1 mole of copper?
If 3.6 grams of C react, how many moles of CS₂ will be produced?
An isotope of caesium (caesium-137) has a half-life of 30 years. If 1.0 g of caesium-137 disintegrates over a period of 90 years, how many g of caesium- 137 would remain?
