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7nadin3 [17]
3 years ago
7

What have all living things evolved from?

Chemistry
2 answers:
GuDViN [60]3 years ago
6 0

Answer:

all living beings are involved from early spices

EastWind [94]3 years ago
3 0

Answer:

Coprolites.........!!!

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The Lewis structure for a chlorate ion, ClO3-, should show ____ single bond(s), ____ double bond(s), and ____ lone pair(s).
eduard
1 single bond, 2 double bond 2 lone pairs
3 0
3 years ago
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Identify the mass law that each observation demonstrates. a flashbulb contains magnesium and oxygen before use and magnesium oxi
Alla [95]
The mass law is LAW OF CONSERVATION OF MASS.
The law of conservation of mass states that mass, in an isolated system is neither created nor destroy by chemical reaction or physical transformations. 
This implies that, the mass of the chemicals before the reaction will be equal to the mass of the product after the reaction.
4 0
3 years ago
Ice has a density of 0.92g/cm3. It will float in water.
SVEN [57.7K]

The density of pure water is 1 g/cm^3.

Its density is 0.98 g cm 3 at room temperature, in comparison with the handiest zero.92 g cm 3 for ice, a reality that has to be defined through atomic, and molecular concepts. If ice has been no longer much less dense than water, it might sink, having a devastating impact on lake backside ecosystems. believe it or now not, ice is honestly about 9% much less dense than water. for the reason that water is heavier, it displaces the lighter ice, causing the ice to glide to the pinnacle.

The density of ice is about 90 percent that of water, but that could range because ice can contain air, too. meaning that about 10 percent of an ice cube or iceberg will be above the water line. The density of water is maximum at four∘C, and the density of the ice is much less than the water due to its susceptible intermolecular pressure of attraction. as the density of water is more, it's miles heavier than ice. therefore ice floats on the floor of the water. Ice continually floats due to the fact it's far less dense than everyday water. because frozen water molecules shape a crystal.

Learn more about A density here:-brainly.com/question/17780219

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6 0
1 year ago
What is the best classification for this sample of crude oil?
Nata [24]
Its have a classification of light and heavy crude oil
6 0
2 years ago
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Calculate the number of grams of carbon dioxide produced from 6 moles of oxygen gas. List only the number of grams of carbon dio
faust18 [17]

Answer:

g CO2(g) = 264.06 g

Explanation:

  • C(s)  + O2(g) → CO2(g)

∴ moles O2(g) = 6 mol

∴ mm CO2 = 44.01 g/mol

⇒ mol CO2(g) = ( 6 mol O2(g) )×( mol CO2(g) / mol O2(g) ) = 6 mol CO2(g)

⇒ mass CO2(g) = ( 6 mol CO2(g) )×( 44.01 g/mol ) = 264.06 g CO2(g)

3 0
3 years ago
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