Exam (elaborations)
Chem 103 module 1 to 6 exam answers portage learning
- Course
- CHEM 103 Chemistry
- Institution
- Portage Learning
Chem 103 module 1 to 6 exam answers portage learning
[Show more]
Content preview
Chem 103 Module 1 to 6 Exam answers Portage learning.MODULE z1 zEXAM
Question z 1
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
z z z z z z z z z z z z z z z z z z z z z z z z z z z Click zthis z link z to zaccess z the z Periodic
z Table. z This z may zbe zhelpful z throughout zthe zexam.
1. Convert z845.3 zto zexponential zform zand zexplain zyour zanswer.
2. Convert z 3.21 zx z10-5 z z zto zordinary z form z and z explain z your zanswer.
1. Convert z845.3 z= zlarger zthan z1 z= zpositive zexponent, zmove zdecimal z2
zplaces
= z8.453 z x z102
2. Convert z3.21 zx z 10-5 z z z= z negative z exponent z = z smaller zthan z 1, z move
z decimal z 5 zplaces z= z0.0000321
Question z 2
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
z z z z z z z z z z z z z z z z z z z z z z z z z z z Click zthis z link z to zaccess z the z Periodic
z Table. z This z may zbe zhelpful z throughout zthe zexam.
Using zthe zfollowing zinformation, zdo zthe z conversions zshown zbelow, zshowing
zallzwork:
1 zft z= z12 zinches 1 zpound z= z16 zoz 1 zgallon z= z4 zquarts
1 zmile z= z5280 1 zton z= z2000 zpounds 1 zquart z= z2 zpints
zfeet
kilo z(= milli z(= centi z(=
z1000) z 1/1000)zdeci z(= z1/10)
z1/100)
1. 24.6 zgrams z= z? zkg
2. 6.3 zft z= z? zinches
1. z 24.6 zgrams zx z1 zkg z/ z1000 zg z= z0.0246 zkg
2. 6.3 zft zx z12 zin z/ z1 zft z= z75.6 zinches
please zalways zuse zthe zcorrect zunits zin zyour zfinal zanswer
Question z3
,Click zthis z link zto z access z the z Periodic z Table. z This z may zbe z helpful
z throughoutzthe zexam.
Do zthe z conversions z shown z below, zshowing z all z work:
1. 28oC z = z?
zoK z2. 158oF
z = z ? zoC z3.
343oK z = z?
zoF
1. 28oC z + z273 z= z 301 zoK o
C z→ z oK z(make zlarger)
+273
2. 158oF z- z32 z ÷ z 1.8 z = z70 zoC o
F z→ z oC z (make z smaller)
-32 z÷1.8
3. 343oK z- z273 z= z 70 zoC zx z1.8 z + z 32 z= z 158 zoF o
K z→ z oC z→ z oF
Question z 4
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
z z z z z z z z z z z z z z z z z z z z z z z z z z z Click zthis z link z to zaccess z the z Periodic
z Table. z This z may zbe zhelpful z throughout zthe zexam.
Be zsure zto zshow zthe zcorrect znumber zof zsignificant zfigures zin zeach
zcalculation.
1. Show zthe zcalculation zof zthe zmass zof za z18.6 zml zsample zof
zfreon zwithzdensity zof z1.49 zg/ml
2. Show zthe zcalculation zof zthe zdensity zof zcrude zoil zif z26.3 zg
zoccupies z30.5zml.
1. M z= zD zx zV z= z1.49 zx z18.6 z= z27.7 zg
2. D z= zM z/ zV z= z26.3 z/ z30.5 z= z0.862 zg/ml
Question z 5
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
z z z z z z z z z z z z z z z z z z z z z z z z z z zClick zthis z link z to zaccess z the z Periodic
z Table. z This z may zbe zhelpful z throughout zthe zexam.
1. 3.0600 z contains z ? z significant z figures.
,2. 0.0151 z contains z ? z significant z figures.
, 3. 3.0600 z÷ z0.0151 z= z? z(give zanswer zto zcorrect znumber zof
zsignificant zfigures)
1. 3.0600 z contains z 5 z significant z figures.
2. 0.0151 zcontains z 3 z significant z figures.
3. 3.0600 z÷ z0.0151 z= z202.649 z= z203 z(to z3 zsignificant zfigures zfor z0.0151)
Question z 6
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz zzzz
z z z z z z z z z z z z z z z z z z z z z z z z z z z Click zthis z link z to zaccess z the z Periodic
z Table. z This z may zbe zhelpful z throughout zthe zexam.
Classify zeach zof zthe zfollowing zas zan zelement, zcompound, zsolution zor
zheterogeneous zmixture zand zexplain zyour zanswer.
1. Coca zcola
2. Calcium
3. Chili
1. Coca zcola z- zis znot zon zperiodic ztable z(not zelement) z- zno zelement
znamesz(not zcompound)
appears zto zbe zone zsubstance z= zSolution
2. Calcium z- zis z on zperiodic ztable z= zElement
3. Chili z- zis znot zon zperiodic ztable z(not zelement) z- zno zelement
znames z(notzcompound)
appears z as z more z than z one z substance z (meat, z beans,
sauce) z= zHetero zMix
Question z 7
zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
z z z z z z z z z z z z z z z z z z z z z z z z z z z Click zthis z link z to zaccess z the z Periodic
z Table. z This z may zbe zhelpful z throughout zthe zexam.
Classify z each z of zthe z following z as z a z chemical z change z or za zphysical z change
1. Charcoal z burns
2. Mixing zcake zbatter zwith zwater
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Prose1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
71498 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now