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kobusy [5.1K]
3 years ago
5

A(n) __________ is a substance in which atoms of two or more elements are combined in a fixed proportion.

Chemistry
1 answer:
Bingel [31]3 years ago
4 0
A(n) _compound_ 

Hope this helps
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The next level of organization is the _____.
elena55 [62]

Answer:

The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

Hopefully this helps feel free to mark brainliest :)

5 0
3 years ago
Which statements are true about reversible reactions?
umka21 [38]

Answer:

Reversible reactions exhibit the same reaction rate for forward and reverse reactions at equilibrium.

Reversible reactions exhibit constant concentrations of reactants and products at equilibrium

Explanation:

A reversible reaction is a reaction that can proceed in both forward and backward direction.

Equilibrium is attained in a chemical system when there is no observable change in the properties of the system.

At equilibrium, a reversible reaction is occurring in at same rate. That is, the forward and backward reaction is occurring at the same rate. As the rate of the forward and backward reaction remains the same, the concentrations of the reactants and products will also be the same in order for the equilibrium to be maintained.

5 0
3 years ago
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Nascar fans love race day when they get a chance to cheer on there favorite racer if a driver was able to travel 600 miles in 3
hjlf

Answer:

200 mph

Explanation:

600/3=200

5 0
3 years ago
What elements valence electrons are located in 5s25p4?<br> A. Te<br> B. Mo<br> C. Pm<br> D. Re
Katena32 [7]
Te it is correct I looked
3 0
3 years ago
Question 1 A student made measurements on some electrochemical cells and calculated three quantities: The standard reaction free
Zinaida [17]

Answer:

Explanation:

for spontaneous reaction,

ΔG is negative

K>1

E > 0

cell A:

ΔG and EO suggests that reaction is spontaneous. But K is less than 1.

Hence K is wrong

cell B:

ΔG and EO suggests that reaction is non spontaneous .But K is greater than 1.

Hence K is wrong

cell C:

E and K suggest than reaction is non spontaneous but ΔG suggest that reaction is spontaneous.

Hence ΔG is wrong

4 0
4 years ago
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