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yulyashka [42]
2 years ago
15

How can a short-term environmental change, such as a drought or a flood, affect organisms?

Chemistry
1 answer:
viktelen [127]2 years ago
5 0

Answer:

it can affect things by drastically chagning the way that organisms opareate such as the eco systems, the health of the land the flood or drought is on and etc.

Explanation:

hope this helps!

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Which of the following happens to a material when it goes through a chemical change?
jok3333 [9.3K]

Answer:

Color change

Explanation:

If it is a chemical change, then the color will change. Sometimes chemical changes also cause fizzing and bubbling.

5 0
2 years ago
Read 2 more answers
1. An atom that has an outer shell that is NOT full is (more likely OR less likely) to be reactive than an atom that has a full
Serga [27]
Yes because they atom with a stable octet electrons is less reactive it does not need any more electrons while an atom that has an partially filled electrons need more electrons to complete octet structure
7 0
3 years ago
Fe3O4(s) + 4H2(g)3Fe(s) + 4H2O(g) Using standard thermodynamic data at 298K, calculate the entropy change for the surroundings w
alexandr402 [8]

Answer:

dS= 1.79*169.504

j/k = 303.41 j/k

Explanation:

Fe3O4(s) + 4H2(g) --> 3Fe (s)+ 4H2O(g)

dS(Fe3O4) =146.4 j/k

dS(H2) =130.684

dS(Fe) =27.78

dS(H2O) =188.825

dSrxn = dS[product]-dS[reactants]

= 3*dS(Fe)+ 4*dS(H2O)-[1*dS(Fe3O4)+ 4dS(H2)]

= [3*27.78 +4*188.825-146.4 -4*130.684] j/k = 169.504 j/k

This is the dS for 1mole Fe3O4

for 1.79 mols Fe3O4

dS= 1.79*169.504 j/k = 303.41 j/k

7 0
3 years ago
Which is the best description of a molecule?
mojhsa [17]
By definition, we have to:
A molecule is a group of at least two atoms in a defined configuration linked by chemical bonds.
We have two types of molecules:
1) several atoms of a single chemical element, as in the case of oxygen. (O2)
2) Atoms of different elements, as in the case of water. (H2O)
Answer:
the best description of a molecule is:
A: A molecule of an element is composed of at least two types of atoms.
3 0
3 years ago
Aluminum flouride+ sulfuric acid=
Alexxx [7]

you get hydrofluoric acid

6 0
2 years ago
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