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77julia77 [94]
3 years ago
6

A scientist is interested in comparing the age of a rock with other rocks. What is the scientist determining by doing this?

Chemistry
2 answers:
Delvig [45]3 years ago
3 0

<u>Answer:</u> the absolute age of the rocks.

<u>Reasoning:</u> The relative age of a rock is not an exact age. rather it's the comparison of one rock or fossil to another to find which one is older or younger.

mash [69]3 years ago
3 0

Hi There!

Question - A scientist is interested in comparing the age of a rock with other rocks. What is the scientist determining by doing this?

Answer - The rocks absolute age

Hope This helps :)

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A certain FM radio wave has a frequency of 1.31 x 108 Hz. Given that radio waves travel at
Westkost [7]

Answer:

2.28 m

Explanation:

Use the relationship  

λ=vf

 

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The product formation was decreased when a substance b was added to an enzyme reaction. more substrate being added did not incre
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7 0
3 years ago
Will the ph of a solution of nh4cn be &gt;7, &lt;7, or =7?
never [62]
PH of a solution will be <span>higher than 7
</span>
Ammonium cyanide is a salt formed by hydrogen cyanide and ammonia. Ammonia is a weak base and hydrogen cyanide is a weak acid. 
NH₄CN + H₂O ⇒ NH₃ + HCN 

NH₄⁺ + H₂O -----> H₃O⁺ + NH₃

CN⁻ + H₂O -----> HCN + OH⁻ 

Although both compounds are weak electrolytes, NH₃ is somewhat stronger base than HCN is a strong acid, so the solution reacts alkaline. We can prove this using Ka and Kb values:

Ka(HCN) = 4.9 x × 10⁻¹⁰

Kb(NH₃) = 1.8 × 10⁻⁵<span>
Kw= </span>1.0 × 10⁻¹⁴

Let's first calculate Ka for NH₄⁺: 
Ka(NH₄⁺) x Kb(NH₃<span>) = pKw

</span>Ka(NH₄⁺) = Kw/Kb(NH₃) = 5.6 x 10⁻¹⁰

Then, Kb for CN⁻:

Kb(CN⁻) x Ka(HCN) = pKw

Kb(CN⁻) = Kw/Ka(HCN) = 2 x 10⁻⁵

 
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7 0
3 years ago
What is the matter of science​
weqwewe [10]
The finagling in the hole
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3 years ago
During a medical screening, lung capacity testing is a standard procedure.<br> true or false
Naya [18.7K]

Answer;

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3 years ago
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