HW1-CHM130

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chm_130.pdf

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d i ffe r e n t ? th e o t h e r i n e r t g a s e s? I n w h i c h w a y i s i t d i s t i n c t l y th e p e r i o d i c t a b l e . W h i c h p r o p e r t i e s d o e s i t s h a r e w i th R a d o n i s o n e o f t h e n o b l e g a s e s fo u n d i n G r o u p 8 A o n5.

te r m s o f s i z e a n d h e a l t h e f f e c t s . E x p l a i n t h e d i f f e r e n c e b e t w e e n P M 2. 5 a n d P M ro i n

4. G i v e t h r e e e x a m p l e s o f p a r t i c u l a t e m a t t e r fo u n d i n a i r .

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a b

e e

r e a s o n i n g . a s a n e l e m e n t , a c o m po u n d , o r a m i x t u r e . E x p l a i n y o u r r e p r e s e n t e d by c o l o r a n d s i z e . C ha r a c t e r i z e e a c h s a m ple

7. I n t h e s e d i a g r a m s , tw o d i f fe r e n t t y p e s o f a t o m s a r e 10 pp m . E x p r e s s th i s a s a pe r c e n t .

d . I n t h e dr y p o l a r r e g i o n s , w a t e r v a p o r m a y be a m e r e m a y r e a c h 50, 000 ppm . E x p r e s s t h i s a s a pe r c e n t .

c . I n a t r o p i c a l r a i n fo r e s t , th e w a t e r v a po r c o n c e n t r a t i o n e a c h c o n c e n t r a t i o n a s a p e r c e n t .

e x h a l e d by n o n s m o ke r s i s 0 - 2 ppm C O . E x pf e s s

c o n c e n t r a t i o n o f 20- 50 ppm C O . I n c o n t r a s t , a i r b . T he a i r e x ha l e d f r o m t he l u n g s o f a s m o ke r ha s a

0. 9%. E x p r e s s t h i s v a l u e i n ppm . 6. a . T h e c o n c e n t r a t i o n o f a r g o n i n a i r i s a p p r o x

i m a te l y

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br e a t h e d d a i ly d . 150, 000 m g o f C O , th e a ppr o x i m a t e a m o u n t

c . 0. 0000075 m , th e d i a m e t e r o f a r e d bl o o d c e l l H a t o m s i n a w a t e r m o l e c u l e

b . 0. 0000000000958 m , th e d i s t a n c e be t w e e n O a n d a . 1500 m , th e d i st a n c e o f a fo o t r a c e

E x pr e s s e a c h o f th e s e n u m be r s i n s c i e n t i fi c n o t a t i o n .9 ·

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o f th e s e gr o u p s . c . G i v e a ge n e r a l c h a r a c t e r i st i c o f th e e l e m e n t s i n e a c h b . N a m e t he e l e m e n t s th a t m a k e u p e a c h gr o u p . a . W h a t i s t h e g r o u p n u m b e r fo r e a c h sh a de d r e gi o n ?

gr o u ps s h a de d o n i t . C o n si de r th i s p o r t i o n o f th e p e r i o d i c t abl e a n d th e13.

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f th e h e h u ín M h n g a ba u o o n

e . a c u p o f m a yo n n a i s e

d . a s a m pl e o f c o pp e r

c . a b a r o f de o do r a n t s o a p

b. s te a m c o m i n g fr o m a p a n o f bo i l i n g w a te r

a l s o c a Į l e d n i tr o u s o x i de) a . a s a m pl e o f

" l a u gh i n g ga s "

(d i n i tr o ge n m o n o x ide ,

c o m po u n d , o r a m i x t u r e . C l a s s i fy e a c h o f th e s e s u bs t a n c e s a s a n e l e m e n t , a

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c . C 2H 4 (g) + 0 2 (g) ― ― C 0 2 (g ) + H 2 0 (g) b . C 2 H 4 (g ) + 0 2 (g ) - CO (g) + H 2 0 (g)

a . C 2 H 4 (g ) + 0 2 (g) - C (s ) + H 2 0 (g)

o x yge n . l a n c e t he s e e qu a t i o n s i n w h ic h e tha n e (C2ř İ4) bu r n s

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b. 2 C 8 H 18 (g ) + 25 0 2 (g ) - 16 C 0 2 (g ) + 18 H 2 0 (t)

a . 2 C 3 H 8 (g ) + 7 0 2 (g) - 6 C O (g) + 8 H 2 0 (t)

de m o n s t r a t e th a t th e s e e q u a t i o n s a r e ba l a n c e d .

Co u n t the a to m s o n bo th s ide s o f th e a r r o w .