Questions by Ali Ben Messaoud

Questions by Ali Ben Messaoud

A woman’s husband dies within the past year. The widow appears to talk to herself in the yard,doesn’t wash herself or dress in clean clothes, and has evidently lost a lot of weight.

asked Aug 27, 2020

1 answer

0 votes

192k views

Students volunteering at a charity event work 1/2- hour shifts.Zack volunteered for 4 hours.He incorrectly divided one half by four to find the number of shifts he worked. How should zack have calculated

asked Jun 23, 2020

1 answer

4 votes

11.3k views

A mixture of helium and nitrogen gases at a total pressure of 641 mm mm Hg. If the gas mixture contains 0.399 grams of helium, how many grams of nitrogen are present? Hg contains helium at a partial pressure

asked Feb 25, 2020

1 answer

2 votes

206k views

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