Chemistry, 08.12.2019 08:31 rosie20052019
aqueous solutions of lead nitrate and potassium iodide are combined in a test tube. the best proof that a chemical reactions has occurred would be that
a) the solution is yellow.
b) both reactants are aqueous solutions.
c) a yellow precipitate settles to the bottom.
d) lead and potassium are both metals and will replace each other.
Answers: 3
Chemistry, 22.06.2019 10:10
When water dissociates, each water molecule splits into a hydroxide ion and a) h 3 o + b) a hydrogen atom c) a hydrogen ion d) h 2 o e) oh —
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Chemistry, 22.06.2019 10:30
Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic
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Chemistry, 22.06.2019 22:00
Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.
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Chemistry, 22.06.2019 22:30
Which of the following is true about the speed of light? it depends on the wavelength.
Answers: 3
aqueous solutions of lead nitrate and potassium iodide are combined in a test tube. the best proof t...
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