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stepladder [879]
3 years ago
7

What patterns in the rock layer fossils helped you identify an extinction?

Chemistry
2 answers:
Dafna11 [192]3 years ago
8 0
Often, the rock layers bookending the mass extinction are noticeably different in their compositions. These changes in the rocks show the effects of environmental disturbances that triggered the mass extinction and sometimes hint at the catastrophic cause of the extinction
nignag [31]3 years ago
4 0
What the person said bro
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Which is a property of barium (Ba)?
pogonyaev

Answer:

a it rarely reach with other elements

6 0
3 years ago
Calcutale Grxn for the following equation at 25°C: <br><br> 4KClO3(s) → 3KClO4(s) KCl(s)
Step2247 [10]

Answer:

-133.2 kJ

Explanation:

Let's consider the following balanced equation.

4 KClO₃(s) → 3 KClO₄(s) + KCl(s)

We can calculate the standard Gibbs free energy of the reaction (ΔG°rxn) using the following expression.

ΔG°rxn = 3 mol × ΔG°f(KClO₄(s)) + 1 mol × ΔG°f(KCl(s)) - 4 mol × ΔG°f(KClO₃(s))

ΔG°rxn = 3 mol × (-303.1 kJ/mol) + 1 mol × (-409.1 kJ/mol) - 4 mol × (-296.3 kJ/mol)

ΔG°rxn = -133.2 kJ

5 0
3 years ago
How many potassium atoms are present in 0.01456 g of potassium??
leva [86]
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8 0
3 years ago
How are Parkinson's disease and ALS similar?
Diano4ka-milaya [45]

Answer:

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This is why the third option is the correct one.

4 0
3 years ago
Which of the following is not found in the nucleus of an atom?
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8 0
4 years ago
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