The cesium-137 has a half life of 30 years after 90 years about 10g.remains. the original mass of cesium -137 is how much?

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Q: If a 1.065 g sample of magnesium oxide of 84.736% were treated with 50 mL of 1.017 N sulfuric acid, ...

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Q: 10.11 Write equations for the following processes, noting appropriate conditions: (a) electrolysis o...

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Q: 4: khat mass of magreszum qucttal is vepurred to ead with 25tn of 2 moldni find thie voluve of compl...

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Q: For the elementary reaction outlined below please drag each of the changes to the effect that the ch...

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Q: columns of equal length (time in min). Column 1 Column 2 10 suodsa opaad

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Q: Why does the presence of an unpaired electron make a molecule paramagnetic

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Q: Calculate the pH of a 2.4 x 105 M HBr solution at 25 °C. O 2.45 O 11.69 O 4.62 O 9.38

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Q: A particular beer is 6.50% ethanol by volume (C2H6O). if a single bottle of beer contains 750. ML of...

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Q: density

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Q: How will Le Chatlier’s Principle be used to? Cause an insoluble salt to become more soluble

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Q: Let us now pretend that you are a cosmetic chemist. Since you already know the different cosmetic in...

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Q: Draw the major product of this reaction. Ignore inorganic byproducts. CN 1. LIAIH4 (excess) 2. H3O* ...

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Q: Exactly 4.0 g of hydrogen gas combines with 32 g of oxygen gas according to the following reaction. ...

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Q: What is mass defect and binding energy for C14 nucleus

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Q: ꜱᴜᴘᴘᴏꜱᴇ ᴛʜᴀᴛ ᴛʜᴇʀᴇ ᴀʀᴇ ꜰᴏᴜʀ ᴄᴏʟᴏʀᴇᴅ ᴄᴀɴᴅɪᴇꜱ ɪɴ ᴀ ʙᴏx, ᴛᴡᴏ ʀᴇᴅ ᴀɴᴅ ᴛᴡᴏ ʙʟᴜᴇ, ᴡʜᴀᴛ ɪꜱ ᴛʜᴇ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ...

A: Answer 4 :-  Total number of Candies in the box = 4 Total number of red candies in the box = 2 Total...

Q: draw expanded structure and bond line drawing for each CHCCH-C(O)CНз CH2CI(CH2)½CH(CH3)2 (CH3)2CHCHC...

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Q: PROCEDURE 1000 mg L-asocrbic acid tablet (pulverized into fine powder) Molar mass of tablet = 176....

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