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Science in Context / Wetenskap in Konteks - 179
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Balance the following equation: | Balanseer die volgende vergelyking:
|
_ NH3(g) + _ O2(g) → _ NO(g) + _ H2O(g)
| |
The correct name for the following compound is: | Die korrekte naam vir die volgende verbinding is: |
Mg(ClO4)2 | |
Name the following compound: | Benoem die volgende verbinding: |
TiHPO4 | |
The name for the following compound is | Die naam vir die volgende molekule is: |
N2O | |
The name for the following compound is: | Die naam vir die volgende molekule is: |
NF3
| |
Name the following compound: | Benoem die volgende verbinding: |
CoSO4
| |
Name the following compound: | Benoem die volgende verbinding: |
(NH4)3PO4 | |
Which species has 54 electrons? | Watter ioon besit 54 elektrone? |
Copper exists as a mixture of two isotopes. Copper-63 is 69.17% abundant and it has a mass of 62.9296 amu. Copper-65 is 30.83% abundant and it has a mass of 64.9278 amu. Calculate the atomic mass of copper and chose the correct answer. | Koper kom voor as a mengsel van twee isotope. Koper-63 se voorkoms is 69.17% met 'n massa van 62.9296 amu. Koper-65 se voorkoms is 30.83% met 'n massa van 64.9278 amu. Bereken die atoommassa van koper en kies die korrekte antwoord. |
Provide the number of electrons, protons and neutrons for copper-63 | Gee die getal elektrone, protone en neutrone vir koper-63 |
63Cu | |