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nadezda [96]
3 years ago
5

What describes redshift

Chemistry
1 answer:
ikadub [295]3 years ago
4 0
The red end of the spectrum.
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The molar madd of Ca(OH)2
Nonamiya [84]
What you have to do is find a periodic table and add the mass of each atom that the compound is made of.

Ca= 40.1
O= 16.0
H= 1.01

keep in mind that you have to also account for how many atoms of each there are in the molecule. for example, in Ca(OH)2, there are one Ca, two O and two H

so the molar mass of Ca(OH)2= 40.1 + (2 x 16.0) + (2 x 1.01)= 74.12 g/mol
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3 years ago
Allison is trying to identify the type of bacteria found on common surfaces like doorknobs, table tops, etc. For this experiment
strojnjashka [21]
She would use a microscope
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3 years ago
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What is an extensive property that can be calculated?
lord [1]
Volume can be calculated
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3 years ago
Given following electron configurations, 1s22s22p63s23p64s23d104p65s24d9 and 1s22s22p63s23p64s23d104p65s14d10.
marusya05 [52]

Explanations:- Part 1: We could count the total number of electrons by looking at the electron configurations. Both of these electrons configurations have 47 electrons. If we look at the periodic table then 47 is the atomic number of silver. So, the name of the element is silver and its represented as Ag.

Part 2: As per the rule, Completely filled and half filled orbitals are more stable. First electron configuration has 9 electrons in 4d and we know that d is more stable if it has 5 electrons(half filled) or it has 10 electrons(full filled).

For stability reasons, one of the electron from 5s goes to 4d and for this reason the second electron configuration is found most often in nature for silver.

Few other examples are Cr and Cu.

8 0
3 years ago
Consider the energy diagram below.
Kazeer [188]

Answer:

A) The catalyzed reaction passes through C.

Explanation:

4 0
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