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kenny6666 [7]
3 years ago
9

Which change might cause a cold spell in the northern united states

Chemistry
2 answers:
Andru [333]3 years ago
7 0
Jet Stream are narrow bands of strong winds from the upper levels of the atmosphere and its location depends from year to year. It follows the boundaries hot and cold air so technically it takes the heat with it wherever it travels:from north to south.
julia-pushkina [17]3 years ago
6 0

Answer:B. The polar jet stream moves south

Explanation:

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After creating a definition for what it means to be sexually abstinent, list reasons why being abstinent is important for you an
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Sexually abstinent: refraining from some or all sexual activities
school (higher education)
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5 0
3 years ago
Which of the following would be considered an Exothermic Reaction?*
Digiron [165]

Answer:

Burning wood

Explanation:

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6 0
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Substance X has a fixed volume, and the attraction between its particles is strong. Substance Y has widely spread out particles
DedPeter [7]

Answer: X is a Solid; Y is a Gas

Explanation:

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4 0
3 years ago
Analysis of skunk spray yields a molecule with 44.77% c, 7.46% h and 47.76% s by mass. what is the empirical formula for this mo
stiv31 [10]
Suppose we have 100 gr of the substance. Then by weight, it would contain 44.77 gr of C, 7.46 gr of H and 47.76 gr of S. We need to look up the atomic weights of these atoms; M_H=1, M_C=12, M_S=32. The following formula holds (where n are the moles of the substance, M its molecular mass and m its mass): n=m/M. Substituting the known quantities for each element, we get that the substance has 3.73 moles of C, 7.46 moles of H and 1.49 moles of S. In the empirical formula for the molecule, all atoms appear an integer amout of times. Hence, for every mole of Sulfur, we have 2.5 moles of C and 5 moles of H (by taking the moles ratios). Thus, for every 2 moles of sulfur, we have 5 moles of C and 10 moles of H. Now that all the coefficients are integer, we have arrived at an empirical formula for the skunk spray agent: C_5H_{10}S_2
4 0
4 years ago
Make a checklist of eight good characteristics of a experiment.
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I could only find 7!

- independent variable
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6 0
4 years ago
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