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3 years ago

Why is it easier for water molecules to bond together than it is for other molecules to bond together?

Chemistry

1 answer:

laiz [17]3 years ago

6 0

Answer:

We know that there are two types of forces ,one is cohesive force between same molecule and other one is adhesive force between two different type of molecule.

In the water cohesive is more dominate than the adhesive force that is why it is for water molecule bond together.Another reason is that the hydrogen molecule have low electro negativity than the oxygen molecule that is oxygen molecule try to pull hydrogen and form the hydrogen bond.

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You wish to make 250. mL of 0.20 M KCl from a stock solution of 1.5 M KCl and DI water.

Nitella [24]

The question requires us to use the dilution formula $M_iV_i=M_fV_f$ , where $M_i$ and $V_i$ are the stock concentration and volume respectively, then $M_f$ and $V_f$ are the dilute concentration and volume respectively.

a. $C_s_t_o_c_k$ = 1.5 M KCI, $C_d_i_l_u_t_e$ =0.20M KCl, $V_d_i_l_u_t_e$ =250ml KCl

b. $M_iV_i=M_fV_f\\\implies V_i= \frac{M_fV_f}{M_i} = \frac{0.20M \times 250ml}{1.5M} = 33.3\ ml$

To prepare the solution 33.3ml of 1.5M KCl is diluted to a total final volume of 250ml.

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3 years ago

Question 5 of 5

rjkz [21]

Probably Fresh vegetables, it can rot out, that’d be my guess, it’s not canned

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3 years ago

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Brums [2.3K]

Answer:

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3 years ago

Gallionella bacteria can get energy from the reaction fe2+ → fe3+. This reaction is an example of

djverab [1.8K]

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that is Fe2+ → Fe3+ is example of oxidation reaction (answer A)

Explanation

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