phosphine contains 91.1% of p and 8.9% of h, water contains 88.8% of o and 11.2% of h, phosphorus tetroxide contains 56.4% of p and 43.6% of o. show that these data illustrate the law of reciprocal proportion.

About 70 percent of the earth's surface is water-covered, and about 96.5 percent of all earth's water is salt water. identify the watery feature on earth that is made of freshwater rather than salt water. a) bay b) glacier c) ocean d) sea it is not incomplete this is the true question

Why doesn't heat added to water make the tempature rise above 100c

How many moles of cu are needed to react with 5.8 moles of agno3? cu + 2 agno3 → cu(no3)2 + 2 ag