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4 years ago

11

Resistance is caused by _________________in a current bumping into electrons and ions in the matter through which the current is

flowing.
electrons

matter

protons

neutrons

1 answer:

zysi [14]4 years ago

8 0

The answer is protons

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A word which describes a solution which is more dilute than cytoplasm and would cause a cell to swell with water

Snowcat [4.5K]

Answer:

A hypertonic solution has increased solute, and a net movement of water outside causing the cell to shrink. A hypotonic solution has decreased solute concentration, and a net movement of water inside the cell, causing swelling or breakage.

Explanation: hope this helps :) sorry if it's wrong :(

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3 years ago

One gallon milk is equal to how many milliliters of milk?

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Explanation:

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3 years ago

What is the complementary DNA strand for the following sequence:<br> ATGGCTTGCCAAGGTCCGGAAACTTTG

valentina_108 [34]

TACCGAACGGTTCCAGGCCTTTCAAAG

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3 years ago

Acellus<br> How many grams of strontium<br> (Sr, 87.62 g/mol) are in 2.92<br> moles of strontium?

saul85 [17]

Answer:

There are 255, 85 grams of Strontium in 2,92 moles.

Explanation:

We perform a simple rule of three to calculate the number of grams, knowing that one mole of Sr weights 87, 62 grams:

1 mol Sr---------87, 62 grams

2,92 mol Sr-----x=(2,92 mol Sr x-87, 62 grams)/1 mol Sr= 255,8504 grams

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3 years ago

Need help with 22 and 24<br>

choli [55]

Answer:

22:

Formular:

$atomic \: mass = \frac{ \sum(isotopic \: mass \times \%abundance)}{100} \\$

substitute:

$atomic \: mass = \frac{(23.985 \times 78.70) + (24.986 \times 10.13) + (25.983 \times 11.17)}{100} \\ \\ = \frac{(1887.620) + (253.108) + (290.230)}{100} \\ \\ = \frac{2430.958}{100} \\ \\ { \boxed{ \boxed{average \: atomic \: mass = 24.3 \: amu}}}$

23:

<em>Same</em><em> </em><em>element</em><em> </em><em>is</em><em> </em><em>represented</em><em> </em><em>by</em><em> </em><em>same</em><em> </em><em>number</em><em> </em><em>of</em><em> </em><em>protons</em><em>.</em><em> </em>

Answer:

6 protons. 6 protons

7 neutrons. 8 neutrons

6 electrons. 6 electrons

Note: <u>Atoms</u><u> </u><u>with</u><u> </u><u>same</u><u> </u><u>proton</u><u> </u><u>number</u><u> </u><u>but</u><u> </u><u>different</u><u> </u><u>mass</u><u> </u><u>number</u><u> </u><u>are</u><u> </u><u>called</u><u> </u><u>isotopes</u>

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3 years ago

Read 2 more answers