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soldier1979 [14.2K]
2 years ago
9

People should be more concerned about the global water budget than the local water budget.

Chemistry
1 answer:
Paraphin [41]2 years ago
7 0
True because you shouldn’t be selfish and share with the world
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How does ionization energy change as you
kykrilka [37]

Answer:

How does the energy required to remove an electron from an atom change as you move left to right in Period 4 from potassium through iron? ... A greater nuclear charge pulls the electrons closer to the nucleus, decreasing the atomic radius.

3 0
2 years ago
17. A balloon contains 4.50 X 1022 atoms of helium gas. Calculate the mass of helium in<br> grams.
Rashid [163]

Answer:

1.08 grams

Explanation:

first, we need to find the number of moles

we divide 12.1/22.4=0.54 moles

we multiply the number of moles with the molecular mass 0.54x2=1.08g

4 0
3 years ago
Read 2 more answers
Name the following covalent compound:
mote1985 [20]

Answer:

Pentasulfur nonanitride.

Explanation:

In order to name a compound properly, we need to identify the type of a compound we have. The given compound consists of two non-metals, sulfur and nitrogen. This implies that we have a covalent compound in contrast to an ionic compound which consists of a metal and a non-metal.

To name a molecular/covalent compound, we should use prefixes stating the number of atoms we have. In this case, we have 5 sulfur atoms. The prefix for 5 is 'penta'. That said, we have 'pentasulfur' as our beginning of the name.

We also have 9 nitrogen atoms. The second atom in the molecular formula would have an ending of '-ide', so we expect to have 'nitride'. Adding a prefix for 9, we'd have 'nonanitride'.

Putting everything together, the name is pentasulfur nonanitride.

Some common prefixes:

mono – one (we don't state mono for the first atom, e. g., we would name CO as carbon monoxide instead of monocarbon monoxide);

di – two;

tri – three;

tetra – four;

penta – five;

hexa – six;

hepta – seven;

octa – eight;

nona – nine;

deca – ten.

Notice that 'decanitride' would be correct in case you had 10 nitrogen atoms, similarly, tetra and hexa stand for 4 and 6 instead of 5 given sulfur atoms.

6 0
3 years ago
Name the following compound: S₂O₇
klasskru [66]

Answer:

disulfur heptoxide

Explanation:

7 0
2 years ago
The exchange rate for one United States dollar (US$1.00) is two dollars and seventy cents in Eastern Caribbean currency (EC$2.70
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12.15

hdhdhdjdjdbdbdbbdnsndbdbdbdn

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