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KatRina [158]
3 years ago
14

URGENT:

Chemistry
1 answer:
Ad libitum [116K]3 years ago
8 0

Answer:

The elements that are commonly positive ions are metals. But there are a few gases that can become positively charged by losing electrons.

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zubka84 [21]

The answer is C, 85.

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3 years ago
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Appropriate units for the speed of a chemical reaction, the reaction rate, are _______.
svetlana [45]
Appropriate units for the speed of a chemical reaction, the reaction rate, are M/s
5 0
3 years ago
What are deltaTb and deltaTf for an aqueous solution that is 1.5g nacl in 0.250kg h2o? Given Kb=0.51 C/m and kr=1.86 C/m
bulgar [2K]

Answer:

T_f for given question is 2.79 and T_b is 0.52

\Delta T_b = I \times K_b \times m {i- vant hoff’s constant ; Kb- constant ; m molarity }

M = no. of moles of the solute present in one kg of solution

Let the weight of amount of solute be “w” and its molecular mass be “M”

Let the mass of the solvent in the given question be “x”

\Delta T_b = I \times K_b \times (w/M)/ x

\Delta T_b = I \times K_b \times w/Mx

\Delta T_b = 1 \times 0.51 \times1.5/(0.250 \times 58.44) = 0.052

\Delta T_f = M \times K_f = 1.86 \times 1.5 = 2.79

4 0
3 years ago
What must take place for copper metal to be oxidized?
Oxana [17]
 <span>The copper would go under oxidation since it will be losing two electrons. Copper starts out with an oxidation number of zero, but in order to balance the compound of CuO with the Oxygen having an oxidation number of -2, a positive 2 is required</span>
6 0
3 years ago
PLS ANSWER THANK YOUU
icang [17]

Answer:

Chicken Noodle Soup

Explanation:

The rest do have other things in them but are dissolved unlike the chicken noodle soup.

Hope this Helps!!

:D

8 0
2 years ago
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