tatouchette5891 tatouchette5891

01-08-2022
Chemistry

contestada

A 200. 0-ng sample of sodium-24 was stored in a lead-lined cabinet for 45 hours. The half-life of sodium-24 is 15 hours. How much sodium-24 remains?

Respuesta :

jsimpson11000 jsimpson11000

01-08-2022

Answer:

25 gm would be left

Explanation:

45 hours is 3 half lives

200 gm * 1/2 * 1/2 * 1/2 = 25 gm

Answer Link

Otras preguntas

Draw 2 diagrams for single, double and triple covalent bonds formed in differant molecules.

The thick outer line on a pattern piece is the A cutting line. B alteration line. C sewing line. D basting line.

London bought 5 bottles of water a day for 18 days. On the 19th day, London bought 8 bottles of water. Write an expression that matches the sentence above.

What must x equal if g||h? Explain.

2x-ay+5=0 if the slope of the equation is 3/2, then what is the value of a COULD YOU EXPLAIN IT TO ME STEP BU STEP, THE ANSWER KEY IN MY TEXTBOOK DIDNT HELP

Handwritten solution required

2. Rajah menunjukkan lintasan alur cahaya bergerak dari C blok plastik ke udara. Kira; a. indeks biasan plastik b. laju cahaya dalam plastik plastik udara 55° 3

A board with 2.3m in length must be cut so that one piece is 30cm more than the other piece . Find the length of each piece

2x-5+x-2=5 what is the value of x

text about lebanon's drinking water