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Vaselesa [24]
4 years ago
6

One gram is approximately the same as half the mass of a new U.S.

Chemistry
1 answer:
MrRa [10]4 years ago
4 0

Answer:

b) dime

Explanation:

a dime is approximately 2.2g

half of this is 1.1g, which can be rounded down to one gram.

hope this helps

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Determine the number of valence electrons for the following: [kr] 5s2 4d6
wlad13 [49]

Answer: B) 2 (as indicated by electron distribution shown), but taking into account the real properties of this element, 4,7,8 also occur (see below).

Explanation:

This is the electron complement/atomic number of ruthenium, which actually has the structure [Kr] 5s1 4d7

Nevertheless, Ru does not form Ru(I) compounds and few Ru(II) compounds (RuCl2, RuBr2, RuI2). It also forms Ru(III)Cl3 and a larger number of Ru(IV) compounds, e.g. RuO2, RuS2. It also forms RuO4

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3 years ago
WHAT DO YOU USE TO MAKE A VOLCANO?
Igoryamba

Answer:

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3 years ago
If you move an object from the base of a mountain to the top of the mountain what happens to its mass and weight
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Answer:

nothing

Explanation:

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5 0
4 years ago
What would be the final volume (in mL) of the aqueous potassium fluoride which was prepared by dissolving 8.0 g of potassium flu
andrew11 [14]

n=m/M

8.0g÷58.10g/mol=0.14mol

V=n/c

0.14mol÷0.89M=0.16L=1.6×10²mL

5 0
3 years ago
In the simulation, open the Custom mode. The beaker will be filled to the 0.50 L mark with a neutral solution. Set the pH to 11.
Mila [183]

Answer:

Hydroxyl ion concentration is 5.08\times10^{-11}M.

Explanation:

From the given,

pH of the solution = 11.30

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11.30 + pOH = 14

pOH = 14-11.30 = 2.7

The pOH of the solution is 2.7

<u>Concentration of hydroxyl ion:</u>

2.7= -log[OH^{-}]

log[OH^{-}]= -2.7=5.08\times10^{-11}M

Therefore, hydroxylion concentration is 5.08\times10^{-11}M.

4 0
3 years ago
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