When water evaporates from salt is it a chemical or physical change?

How many atoms of oxygen in this equation : 3Ni (OH) 2

How many milliliters of calcium with a density of 1.55g/ml, are needed to produce 98.5g of calcium hydroxide in the single replacement reaction below

What are 100 different rocks and minerals?

Which has the greater volume 10g of hexane or 10 grams of toluene? what is the volume of each?

How has volcanic eruptions historically affected global climate change?

Which of the following are physically properties of a penny

Complete the following statements about the functions of the digestive system. The starts an involuntary swallowing action when it senses food. The squeezes food down the digestive tract by an involuntary synchronized muscle movement called.

Explain how thermal energy is transferred through convection.

What are the coefficients that will balance this skeleton equation? a l c l 3 + naoh → al (oh) 3 + nacl?

Which cluster in the agriculture industry would be most likely to partner with the animal systems cluster to introduce new modern procedures to animal careers