In a large university, 15% of the students are female. If a random sample of twenty students is selected, d.what is the probability that the sample […]
Ethylene glycol, the main component of automotive engine coolant, has a specific heat of 2.35 J/g.oC. Calculate the amount of heat required to raise the temperature […]
The heliocentric theory is/was the theory that is the center of . “helios” is the Greek word for sun. The heliocentric theory replaced the geocentric theory; […]
When solidNH4Cl is added to an aqueous solution of NH3: The pH decreases and [NH3] increases. The pH increases and [NH3]increases. The pH increases and[NH3] decreases. […]