3. the law of definite proportions us explain why water will always
a. break down into...
3. the law of definite proportions us explain why water will always
a. break down into gas when heated.
b. be released or used up in a chemical reaction.
c. consist of a particular proportion of hydrogen and oxygen.
d. be used as a solvent to dissolve other compounds.
Answers: 2
Chemistry, 22.06.2019 06:00
Compare and contrast physical changes with chemical changes.
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Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.
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Chemistry, 22.06.2019 15:00
Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.
Answers: 2
Chemistry, 22.06.2019 17:10
Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth
Answers: 2
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