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kotegsom [21]
3 years ago
7

MENTION THE NAME OF GAS FORMED WHEN CHALK PIECES ARE

Chemistry
1 answer:
svetlana [45]3 years ago
7 0

Answer:

carbon dioxide gas

a. CaCO3 + 2HCl -----> CaCl2 + CO2 + H2O

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In Environment A, trees are growing back and some of the larger animals are returning to a logged forest. In Environment B, lich
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Answer:

Environment A is not undergoing succession, and Environment B is.

Explanation:

Ecological succession is a gradual process in which ecosystems significantly change over time. Ecological succession is a term used by scientists to describe the change in the structure of a community of different species, or ecosystem. This concept of ecological succession stems from a desire to understand the patterns of change in large and complex ecosystems like forests and how they can exist in places known to be recently formed, such as volcanic islands.

In environment A, the ecosystem is not really changing, organisms are merely returning to their natural habitat. It does not represent any change in the ecosystem.

In environment B, the original ecosystem has become grossly modified, first by the appearance of lichen and mosses and subsequently by grasses shrubs and animals. These sequence of events correlate well with the idea of ecological succession presented in the opening paragraph hence environment B is undergoing ecological succession.

4 0
3 years ago
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_____states that the physical and chemical properties of the elements are periodic within the sequence of their atomic numbers.
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The answer is Periodic
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3 years ago
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How many molecules of sugar (C6H1206) are in a mole?
Tanzania [10]
By definition, one mole (one gram molecular weight) of any substance, contains Avogadro’s number of particles; atoms if you are discussing an element, or molecules if a compound. Avogadro’s number has been determined by several methods, all of the accepted values lie within a range of +-1% about the value of 6.022045 x 10^23/gm. That is a large number, in this case approximately; 602,204,500,000,000,000,000,000 molecules of glucose.

From the web :v
8 0
2 years ago
An object has a velocity of 8m/s and a kinetic energy of 480 j what is the mass of the object
MariettaO [177]
Kinetic energy=Ek
Ek=(1/2)mv²
Ek=480 J
v=8 m/s
mass=?

Ek=(1/2)mv²
480 J=(1/2)m(8 m/s)²
480 J=(32 m²/s²) m
m=(480 J)/(32 m²/s²)=15 kg

answer: the mass of the object is 15 kilograms. 
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2 years ago
Which TWO are most likely to form a compound?<br> C<br> Mg<br> S<br> Ar
lbvjy [14]
Answer is Mr and S as MgS ..
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