When a candle is cooling down is it a physical or chemical change

Complete the sentences to explain why the lattice energy of potassium bromide is more exothermic than the lattice energy of rubidium iodide?

The most common carbonate rock is A) dolomite. B) halite. 35) C) limestone. D) calcite.

What are the positions of the sun, moon, and Earth relative to each other when we have stronger tides?

What kind of change occurs if a substance changes into a new substance?

Sucralfate (molecular weight: 2087 g/mol) is a major component of Carafate®, which is prescribed for the treatment of gastrointestinal ulcers. The recommended dose for a duodenal ulcer is 1.0g taken orally in 10.

What is DNA? What information does it carry? Where is DNA located?

5. Differences in which property allow the separation of a sample of sand and seawater by filtration? A) concentration of ions B) volume of sample C) mass of sample D) particle size

Describe the reaction of a weak acid and a strong base. In general, what will the final pH be when the reaction between equal moles of a weak acid and a strong base is complete?

Which is the balanced chemical equation for the reaction of nitrogen (n2) with oxygen (o2) to form no?

What cells are chicken eggs made from