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navik [9.2K]
3 years ago
5

NEED HELP PLEASE I AM GOING TO FAIL

Chemistry
2 answers:
Ede4ka [16]3 years ago
7 0
<span>spontaneous at low temperatures, nonspontaneous at high temperatures</span>
Lelechka [254]3 years ago
3 0
The correct option is this: SPONTANEOUS AT HIGH AND LOW TEMPERATURES.
There are two basic factors which determine whether a reaction will be spontaneous or not, these are the entropy and the enthalpy change. Different reactions have different entropy and enthalpy values. For a reaction that has an increased entropy and a decreased enthalpy, the chemical reaction will be spontaneous at all temperatures.
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Which of the following best describes an atom? * the smallest unit of living things only the smallest unit of an element the sma
Maurinko [17]
The smallest unit of element
5 0
3 years ago
What foods of the aztec found their way into mayan cooking?.
Lera25 [3.4K]

Avocados and tomatoes were mainly eaten by the Aztecs and Maya.

<h3>How did Mayans cook their food?</h3>

"Mayans cooking method includes digging a shallow pit, lining it with stones or clay balls.

Avocados and tomatoes were mainly eaten by the Aztecs and Maya, with different types of fruit. Corn was made into a kind of porridge, called atole in Mesoamerica and capita in Inca territory.

Avocados and tomatoes were mainly eaten by the Aztecs and Maya.

Learn more about Mayan cooking here:

brainly.com/question/1979880

#SPJ1

7 0
2 years ago
One question for chem?? Image attached? please help ! :)
lana [24]
The only bond that involves the complete transfer of electrons is ionic bonding.

A metal that does not have much care for its electrons, such as Sodium, Na, is willing to give up its electron more freely. And an atom that really cares about having electrons might be a gas such as chlorine, Cl. The Chlorine atom takes the electron from Sodium, and then the newly formed ions of Na+ and Cl- bond because they have equal and opposite charges and opposites attract. NaCl is formed.

Hydrogen bonds aren’t actually real bonds (I know, the name is deceptive)

Covalent bonds involve the sharing of electrons.

I’m pretty sure metallic bonds is a made-up term.
7 0
3 years ago
What is the reaction scheme for the experiment of synthesis of methyl salicylate
soldier1979 [14.2K]

The methyl salicylate (wintergreen oil) is the methyl ester of salicylic acid.

Methyl salicylate is produced by esterifying salicylic acid with methanol, the reaction scheme is attached to this answer. In the past, it was commonly distilled from the twigs of Betula lenta (sweet birch) and Gaultheria procumbens (eastern teaberry or wintergreen).

3 0
3 years ago
The standard enthalpy of formation for glucose [c6h12o6(s)] is −1273.3 kj/mol. what is the correct formation equation correspond
balu736 [363]
The standard formation equation for glucose C6H12O6(s) that corresponds to the standard enthalpy of formation or enthalpy change ΔH°f = -1273.3 kJ/mol is 
     C(s) + H2(g) + O2(g) → C6H12O6(s)
and the balanced chemical equation is 
     6C(s) + 6H2(g) + 3O2(g) → C6H12O6(s)

Using the equation for the standard enthalpy change of formation 
     ΔHoreaction = ∑ΔHof(products)−∑ΔHof(Reactants)
     ΔHoreaction = ΔHfo[C6H12O6(s)] - {ΔHfo[C(s, graphite) + ΔHfo[H2(g)] + ΔHfo[O2(g)]}

C(s), H2(g), and O2(g) each have a standard enthalpy of formation equal to 0 since they are in their most stable forms:
     ΔHoreaction = [1*-1273.3] - [(6*0) + (6*0) + (3*0)]
                           = -1273.3 - (0 + 0 + 0)
                           = -1273.3
8 0
3 years ago
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