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3 years ago

11

Which statement below is the BEST explanation for the differences

1 answer:

IgorC [24]3 years ago

7 0

Answer:

A

Explanation:

Electron geometry describes the arrangement of electron groups. Molecular geometry describes the arrangement of atoms, excluding lone pairs.

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The direct transfer of thermal energy between particles of<br> matter that are touching is called

Naddika [18.5K]

Answer:

conduction

Explanation:

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3 years ago

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Which molecule is a substrate dipeptide, water or amino acid?

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Amino acids.
Amino acids group together to form proteins. Enzymes are protein in nature. Thus the substrate is an amino acid.

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4 years ago

2ZnS+3O2=2ZnO+2SO2 how many miles of excess react ant remain

bonufazy [111]

The question doesn't really make any sense, you've just given us a balanced equation. The question seems to be a limiting reagent question, but we actually need to know how many mols of either ZnS or O2 you start off with, in order to tell us how much of the other remains.

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3 years ago

P4O10 + H2O —> <br> what are the products

liubo4ka [24]

Answer:

P4O10 + H2O → H3PO4

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1 year ago

What mass of aluminum has a total nuclear charge of 3.0 C?Aluminum has atomic number 13. Suppose the aluminum is all of the isot

pshichka [43]

Answer:

The value is $m = 6.48*10^{-5} \ g$

Explanation:

From the question we are told that

The total nuclear charge is $Q_t = 3.0 \ C$

The atomic number is $n = 13$

The number of neutrons is $n = 14$

Generally the number of protons is mathematically represented as

$N_p = \frac{Q_t}{p}$

Here p is the charge on a proton with the value $p = 1.60 *10^{-19} \ C$

=> $N_p = \frac{3}{p}$

=> $N_p = \frac{3}{1.60 *10^{-19} }$

=> $N_p = 1.875*10^19 \ protons$

Generally the number of atoms present is mathematically represented as

$N_a = \frac{N_p}{n }$

=> $N_a = \frac{ 1.875*10^19}{13}$

=> $N_a = 1.44*10^{18} \ atoms$

Generally the number of moles of atom present is mathematically represented as

$N = \frac{N_a}{A_n }$

Here $A_n$ is the Avogadro's number with a constant value

$A_n = 6.023*10^{23}$

So

$N = \frac{1.44*10^{18}}{6.023*10^{23} }$

=> $N = 2.4*10^{-6} \ mol$

Generally the total mass is mathematically represented as

$m = N * M$

Here M is the molar mass of aluminum with

$M = 27 \ g/mol$

So

$m = 2.4*10^{-6} * 27$

$m = 2.4*10^{-6} * 27$

$m = 6.48*10^{-5} \ g$

8 0

3 years ago