on a temperature versus time graph, how does the temperature at the beginning of a change is state compare with the temperature at the end of the change

How many moles of water are needed to react with 2.2 moles of li2o? given: li2o + h2o â 2 lioh?

Is a formation of a limestone cave a physical change?

The smallest unit of an element is a blank

Suppose you use a microspope to look at the skin of an onion. What structure will you see that would not be found in a cell from your skin a. Endoplasmic Reticulum b. Golgi Apparatus c. Cell Wall d. Plasma Membrane

What types of elements make an ionic bond

What is the mass (in grams) of 9.09x10^24 molecules of methanol (CH3OH) ? AND How many moles of N are in 0.183g of N2O?

What are the basic building blocks of matter? A) molecules B) atoms C) electrons D) compounds

How does an atom with too few neutrons relative to protons undergo radioactive decay? * by converting proton to a neutron by converting a neutron to a proton by emitting an alpha particle

What is the chemical formula for the compound formed between sodium and iodine?

8. Write a balanced chemical equation showing how you could prepare each of the following salts from an acid-base reaction: KNO3, NaBr, and Cas.