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3 years ago

What is the electron confiquation for for the element Re

Chemistry

1 answer:

zvonat [6]3 years ago

4 0

Answer:

Xe 4f14 5d5 6s2

Explanation:

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Does a screw change the size of the effort force, the direction of the force, or both?

Keith_Richards [23]

Well I'm thinking that it would be both.

4 0

3 years ago

35.47 + 10.1 with the proper number using significant figures

9966 [12]

Answer:

35.47+10.1 is 45.57, I hope that helped nc I'm new to this app and yea.

6 0

3 years ago

How many grams of water will form if 10.54 g H2 react with 95.10 g O2?

sergiy2304 [10]

Answer:

94.0 g H2O

Explanation:

5 0

4 years ago

Read 2 more answers

Given the following information regarding the masses and relative abundances for the isotopes of an element, determine its atomi

Ilia_Sergeevich [38]

Answer:

Average atomic mass = 58.51047 amu

The symbol is $Ni$

Explanation:

The formula for the calculation of the average atomic mass is:

$Average\ atomic\ mass=(\frac {\%\ of\ the\ first\ isotope}{100}\times {Mass\ of\ the\ first\ isotope})+(\frac {\%\ of\ the\ second\ isotope}{100}\times {Mass\ of\ the\ second\ isotope})+(\frac {\%\ of\ the\ third\ isotope}{100}\times {Mass\ of\ the\ third\ isotope})+(\frac {\%\ of\ the\ fourth\ isotope}{100}\times {Mass\ of\ the\ fourth\ isotope})+(\frac {\%\ of\ the\ fifth\ isotope}{100}\times {Mass\ of\ the\ fifth\ isotope})$

Given that:

For first isotope:

% = 68.274 %

Mass = 57.9353 amu

For second isotope:

% = 26.095 %

Mass = 58.9332 amu

For third isotope:

% = 1.134 %

Mass = 61.9283 amu

For fourth isotope:

% = 3.593 %

Mass = 63.9280 amu

For fifth isotope:

% = 0.904 %

Mass = 63.9280 amu

Thus,

$Average\ atomic\ mass=\frac{68.274}{100}\times {57.9353}+\frac{26.095}{100}\times {58.9332}+\frac{1.134}{100}\times {61.9283}+\frac{3.593}{100}\times {63.9280}+\frac{0.904}{100}\times {63.9280}$

$Average\ atomic\ mass=39.55474 +15.37861854+0.702266922+2.29693304+0.57790912$

Average atomic mass = 58.51047 amu

The symbol is $Ni$

5 0

4 years ago

Which molecule contains a non polar covalent bond? 1) O=C=O 2) C=O 3) Br-Br 4) CCL4

nignag [31]

Answer:

3) Br-Br

Explanation:

Polarity occurs between Two atoms of unequal electronegativities.

since Br-Br contain only one atom ( ie.Bromine), they have equal electronegativity. So they can't be polar.

8 0

3 years ago