Chemistry Questions

Which of the following is not a state of matter?A. solidB. liquidC. waterD. plasma
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Light can be transmitted through long fiber optic strands because ofa. refraction.b. external diffraction.c. total internal reflection.d. interference
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Stalactites and stalagmites are examples of _____.organic sedimentary rockcontact metamorphismextrusive igneous rockchemical sedimentary rock
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Calculate the number of kilojoules to warm 125 g of iron from 23.5 °C to 78.0 °C.
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Suppose that a certain fortunate person has a net worth of $79.0 billion ($7.90×1010). If her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?
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Atoms gain or lose electrons to increase:a. reactivityc. stabilityb. nucleus sized. atomic mass
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Silicon dioxide, SiO2, is a(n) _____
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An atom of the element zinc has an atomic number of 30 and a mass number of 65. How many protons does an uncharged zinc atom have?30356595
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Which is an example of a response?a. water lost from the lungs during breathingb. ivy growing around the pole of a fencec. the angle of the sun changing during the dayd. outside temperature dropping at night
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When stressed, mica breaks into thin sheets. This describes mica's _____. luster color streak cleavage
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a sample of ammonia contains 9g hydrogen and 42g nitrogen. another sample contains 5g hydrogen .calculate the amount of nitrogen in the second sample
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Who discovered Chemical Energy?
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Describe the pattern of reactions of metals with acids.
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Why is CCl4 a nonpolar molecule, but PCl3 is a polar molecule?
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What is the mass of 2.65 millimoles of sulfur?
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A man relaxes in his hot tub after a day at work. his body temp is 98.6F and the water is 102Fhow does the heat transfer? A. Heat does not transfer between his body and the waterB. Heat transfers to his body from the water by conduction C. Heat transfers from his body to the water by convection D. Heat transfers from his body to the water by conduction Thank you !
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Are spider multicellular
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What would happen if a jar of helium gas was opened
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