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hram777 [196]
3 years ago
11

Helppppp will mark brainliest

Biology
1 answer:
Romashka-Z-Leto [24]3 years ago
6 0

Answer:

the mixture is a COLLOID and can best be separated by EVAPORATION

not 100% sure the second part is correct... hope it is and i hope i helped!   :)

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Which vessels allow for oxygen movement into the tissues
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I believe the answer is Capillaries
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In writing On the Origin of Species, Darwin synthesized ideas from other publications, as well as observations he made while voy
algol [13]

Answer:

Principles of Geology

Explanation:

J. Henslow gifted Darwin the first volume of Principles of Geology, written by Charles Lyell. The book explains about the old age of the earth. Accordingly, the slow rate of several geological processes suggests that the earth is very old.

Darwin read the book as the ship was crossing the Atlantic and learned about geological processes occurring over the millions of years. For example, he learned that the earth's surface was not formed by some catastrophic event.

In his book, Lyell explained the slow and gradual geological processes like erosion gave rise to the vast landscapes present on the earth's surface.

Darwin compared the time taken by geological processes to form the earth's surface and reasoned if these millions of years were enough to support the evolution of species.

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3 years ago
When did humans first appeared on earth
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2019 years have humans been on earth


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3 years ago
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HELP ASAP I WILL GIVE BRAINLIST
adelina 88 [10]

Answer:

1) CO₂

2) 0.2551 g

Explanation:

The balanced reactions are:

CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂

MgCO₃ + 2HCl → MgCl₂ + H₂O + CO₂

1) The gas produced is CO₂.

2) Calculate mass of CaCO₃:

(0.5236 g) (0.4230) = 0.2215 g CaCO₃

Convert to moles:

(0.2215 g CaCO₃) (1 mol / 100.1 g) = 0.002213 mol CaCO₃

Find moles of CaCO₃:

(0.002213 mol CaCO₃) (1 mol CO₂ / mol CaCO₃) = 0.002213 mol CO₂

Convert to mass:

(0.002213 mol CO₂) (44.01 g / mol) = 0.09738 g CO₂

Calculate mass of MgCO₃:

(0.5236 g) (0.5770) = 0.3021 g MgCO₃

Convert to moles:

(0.3021 g MgCO₃) (1 mol / 84.31 g) = 0.003583 mol MgCO₃

Find moles of MgCO₃:

(0.003583 mol MgCO₃) (1 mol CO₂ / mol MgCO₃) = 0.003583 mol CO₂

Convert to mass:

(0.003583 mol CO₂) (44.01 g / mol) = 0.1577 g CO₂

Total mass of CO₂:

0.09738 g CO₂ + 0.1577 g CO₂ = 0.2551 g CO₂

8 0
3 years ago
What is true about biogeochemical cycle?
Elden [556K]

Answer:

Biogeochemical cycle is one of the several natural cycles, in which conserved matter moves through biotic and abiotic parts of a ecosystem. In biology, conserved matter refers to the finite amount of matter, in the forms of atoms, that present within the earth.

Explanation: It is true that the chemical is one of the natural cycles within earth

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3 years ago
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