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Lab Practical

QuestionAnswer
Three observable changes that indicate chemical change color change, temp change, and emission of light or sound
when a log burns due to combustion which chemical process takes place exothermic
After burning the peanut, he collected 48.3 mL of water, how much heat in kCal was released 3.85
the mass of the burning peanut was .683, whats the experimental kcal of his peanut from 3.85 6.64
Whats the % error if the actual value is 6.43 12.3%
what is the percent error of the mass of zinc sample is 15.44 when the true is 15.23 1.38%
whats the density of the unknown liquid if 49.5 mL of it weighs 61.14g
.923L to mL 923mL
5.3mm to cm .53cm
4.9kg to g 4900g
does the mass # increase, decrease, or stay the same with alpha emissions decrease
how will emitting a beta particle alter the number of protons in an atom increases
how will emitting a beta particle alter the number of electrons in an atom stays the same
how will emitting a beta particle alter the number of neutrons in an atom decreases
how will emitting a gamma particle alter the number of protons and neutrons in an atom doesn't effect the number just the energy state
what principal is used in the VSPER theory minimum amount of repulsion between electron groups
do ionic or covalent compounds have a higher bp point ionic
ionic compound non metal and a metal
covalent non-metal and non-metal
what holds covalent molecules together London dispersion, dipole-dipole, and hydrogen bonding
what is necessary for compounds to conduct electricity ions
Created by: Paytynlarsen
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