PLEASE HELP ME FAST)Part II. Filtration 1. Can you separate a mixture of CuSO4 and water using filtration? 2. Would it be possible to separate the mixture of ferric oxide and water using filtration? 3. Why is it possible to separate a mixture of ferric oxide with water but not a mixture of copper (II) sulfate with water?

The chart shows the bid provided by four contractors to complete a job. which contractor is the most cost-effective?

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]

Citric acid has a ph between 1 and 3.  it is considered to be aa. weak acidb. weak basec. strong based. strong acid