PAY 2 - 5th Grade Science STAAR Review
Matter and Energy Readiness TEKS 5.5A
4. Enrique mixe...
Chemistry, 28.04.2021 06:10 tucecoskun
PAY 2 - 5th Grade Science STAAR Review
Matter and Energy Readiness TEKS 5.5A
4. Enrique mixes yellow pellets in water. After stirring the
yellow pellets around in the water, they begin to disappear
Later, Enrique heats the mixture until all the water is
evaporated, and a yellow powder is at the bottom of the
beaker. What physical property of the yellow substance ha
Enrique demonstrated?
F. Density
6. Magnetism
H. Solubility
J. Mass
5. What physical property of foam makes it a good
use in life vests?
Answers: 1
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The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.
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Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.
Answers: 1
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