4. in an atomic model, what particles are found in the area surrounding the nucleus?

5. why are the poppy seeds placed in different places (not together)?

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?

State one important difference between a physical change and a chemical change?

Scientists are often interested in knowing the molar heat of combustion – the heat released during the combustion of one mole of a substance. use the periodic table to find molar masses. how many moles of ethanol are present in the sample?