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ss7ja [257]
3 years ago
6

Explain how stars and constellations can serve as landmarks for other stars and constellations

Biology
1 answer:
Stella [2.4K]3 years ago
7 0
I don’t know plsease hlep
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Plz help I will mark you brainlist plz if it will let me but plz help me​
Y_Kistochka [10]

Compounds consist of atoms of different elements. In compound the atoms are present in fixed proportion. By changing the proportion compound will changed. For example,

Nitrogen and oxygen reacted to form the compound. By changing the proportion both will form different compound.

NO₂

Nitrogen dioxide consist of one atom of nitrogen and two atoms of oxygen. Their ration is 1 :2

NO

In nitric oxide one atom of oxygen and one atom of nitrogen are present.

Their ratio is 1 : 1.

N₂O

Nitrous oxide consist of two nitrogen atoms and one oxygen. Their ratio is

2 : 1

N₂O₄

Dinitrogen tetroxide consist of two nitrogen atoms and four oxygen atoms. Their ratio will written as 2 : 4

N₂O₅

Dinitrogen pentoxide consist of two nitrogen atoms and five oxygen atoms. Their ratio will written as 2 : 5

3 0
3 years ago
What is 2 squared plus 18 times 13​
Brums [2.3K]
Square root of 29 or 5.38516
7 0
3 years ago
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The ph of your stomach must be (a)more than 7 (b)basic (c)equal to 7 (d) none of the above
marysya [2.9K]

Answer:

(d) None of the above

Explanation:

The pH of your stomach must be highly acidic, because the optimum pH for pepsin, the chief stomach enzyme, is 1.5.

(a) and (b) are wrong, because both conditions are basic.

(c) is wrong, because pH 7 is neutral.

5 0
3 years ago
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Identify three human three humen solution for limitting global warming
antoniya [11.8K]
Reduce carbon dioxide emissions, pollution, and deforestation
reuse materials rather than throwing them away and needing to create more
recycle materials like metals, paper, and plastics
replace non-biodegradable materials with biodegradable

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3 years ago
What is required for exponential growth to occur in a population?
kirza4 [7]

Answer:

abundance of resources

5 0
3 years ago
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