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zhuklara [117]
2 years ago
8

Pls someone help me with this question pls

Chemistry
2 answers:
OlgaM077 [116]2 years ago
4 0

Answer:

D

Explanation:

kykrilka [37]2 years ago
4 0
It’s D I believe but I could be wrong
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The absorbance of a garbanzo bean solution that had been diluted by a factor of three was 0.528. what was the concentration of t
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3 years ago
A bike rider approaches a hill with a speed of 8.5 m/s. The total mass of the bike and the rider is 85 kg. Find the kinetic ener
krek1111 [17]

KE=3070.625 J

Height = 3.686 m

<h3>Further explanation</h3>

mass of bike+rider=85 kg

velocity = 8.5 m/s

\tt KE=\dfrac{1}{2}mv^2\\\\KE=\dfrac{1}{2}\times 85\times 8.5^2\\\\KE=3070.625~J

Conservation of energy :

(KE+PE)₁ (downhill) = (KE+PE)₂ (up the hill)

PE₁=0⇒h=0

KE₂=0⇒v=0(stop), so equation becomes :

KE₁=PE₂

\tt KE_1=3070.625\\\\KE_1=mgh_2\\\\3070.625=85\times 9.8\times h\Rightarrow h=3.686~m

5 0
3 years ago
How to tell which element is oxidized in a reaction?
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If in a redox reaction oxidation state of elements decreases or looses electron(s), the element is said to be oxidized. Hope this helps you!
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A boy inherited genes that would ordinarily allow him to grow tall.his growth is stunted as a result of poor nutrition.this is a
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Combine magnesium metal and hydrochloric acid solution. Mg + HCl →
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Answer:

See below.

Explanation:

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