4. Marie mixed 5 g of carbon with 5 g of lead oxide .She heated the mixture strongly for 15 minutes in a fume cupboard. After 15 minutes, Marie found some shiny beads in the mixture.(a) (i) Marie collected all the shiny beads from this experiment.How could she test them to show they were metal?(ii) Marie's test showed that the tiny beads were metal.What metal were the beads likely to be?b) (i) Marie also expected carbon dioxide to be formed in this experiment.In carbon dioxide, what element is combined with carbon?(ii) Where, apart from the air, did this element come from in this experiment?c) Give one safety precaution Marie should take during this experiment.
When did this happen? was it a few days ago? Last night? If it was awhile ago and you're still in pain then go see a doctor. But more than likely I think you'd be fine.
Throw it out - and report that to the Board of Health the sale of used bedding is against the law, just for this reason. Once bedding is used, it cannot be certified as clean. Even mattresses that have been made wet by rain are replaced in disasters, as the bacteria grow in the mattress, and will bethe cause of respiratory infections. DUMP IT.
