Chem 103 Module 1 to 6 Exam answers Portage learning.
MODULE z1 zEXAM
Question z 1
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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
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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:
,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
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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.
Question z 5
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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.
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
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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.
appears z as z more z than z one z substance z (meat, z beans,
sauce) z= zHetero zMix
Question z 7
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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
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