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riadik2000 [5.3K]
3 years ago
9

Which organism is a tertiary consumer? clownfish brittle star killer whale octopus

Chemistry
2 answers:
vlada-n [284]3 years ago
7 0

Answer:

killer whale

Explanation:

Archy [21]3 years ago
6 0

Answer:

c

Explanation:

im taking the test right now

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White phosphorus is composed of tetrahedral molecules of P4 in which every P atom is connected to three other P atoms. In the Le
Dmitrij [34]

Answer:

In the Lewis structure of P4 there are 6 bonding pairs and 4 lone pairs of electrons.

Explanation:

The structure of tetrahedral molecule of P4 is provided below.

Each phosphorus atom has 5 valence electrons out of which 3 electrons involve in bonding and the rest 2 electrons exist as a lone pair that does not involve in bonding.Hence each phosphorus atom has one lone pair.In P4 molecule there are phosphorus atoms and hence 4 lone pairs in total.

As you can see in the figure, each phosphorus atom is bonded to the other three atoms.A bond is formed when two atoms share one electron each and the pair is called bonding pair.

From the figure we can see that there are 6 bonds in total.Each bond consist of one bonding pair of electrons and hence in total there are 6 bonding pairs of electrons.

Hence in a P4 molecule there are six bonding pairs and 4 lone pairs of electrons.

4 0
3 years ago
Suppose that a substance in a beaker is heated over a burner in a science lab. Which observation would most likely indicate that
victus00 [196]

Answer:

D

Explanation:

the production of an odor would indicate that the heat ignited a chemical reaction

6 0
3 years ago
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A dull metal object has a density of 8.8 G/ML and a volume of 20 ML calculate the mass
Alex

Answer:

Mass = 0.000176 gram

Steps:

m =  V × ρ

=  20 milliliter × 8.8 gram/cubic meter

=  2.0E-5 cubic meter × 8.8 gram/cubic meter

=  0.000176 gram

Explanation:

8 0
3 years ago
How do metals become stable?
natali 33 [55]

Answer:

Atoms of metal elements give away electrons in their reactions to form positive ions. The ions formed have a full outer electron shell, so are very stable.

Explanation:

To become stable, the metal atom wants to get rid of one or more electrons in its outer shell. ... Alternately, an atom that loses electrons becomes a positively charged ion (aka cations). The particles in an ionic compound are held together because there are oppositely charged particles that are attracted to one another.

8 0
3 years ago
How many significant figure does 60600 have?
irga5000 [103]
The answer would be 5. because the last zero is a holding place because the number is in front of the decimal. They other zero counts because they are being sandwiched.<span />
7 0
3 years ago
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