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pychu [463]
3 years ago
10

Relative dating is used to arrange geological events, and the rocks they leave behind, in a sequence. The method of reading the

order is called strata, A. True or B. False
Chemistry
1 answer:
SashulF [63]3 years ago
3 0

<u>Answer:</u>

<em>False. The method of reading the order is called stratification and not strata.</em>

<u>Explanation:</u>

<em>Relative dating is a technique used to arrange geological events </em>in a sequential order by analyzing the rocks. Relative dating technique doesn’t give the actual date of fossils like in other <em>dating processes like carbon dating. Each rock layer is called stratum. </em>

<em>Sedimentary rocks are laid down in an order with one layer above the other. </em>Older rocks occupy the bottom position and the younger rocks occupy the top positions. <em>This is called principle of horizontality.</em>  

<em>The sideways extension of the rocks also follows this rule. </em>

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What is the frequency of electromagnetic radiation with a wavelength of 6.34 x 10^8 m?
Svetllana [295]
<h2>Answer: 4.72 × 10⁷  s⁻¹ or Hz</h2><h3>  Explanation: </h3>

frequency = speed of light ÷ wavelength

frequency = (2.99 × 10⁸  m/s)  ÷  (6.34 × 10⁸  m)

                  =  4.72 × 10⁷  s⁻¹ or Hz

8 0
3 years ago
The total volume in milliliters of a glucose-water solution is given by the equation below: V = 1001.93 + 111.5282m + 0.64698m^2
vagabundo [1.1K]

Answer:

a. Vₐ = 111.5282 + 1.29396m

b. For m = 0.100m; Vₐ = 111.6576

Explanation:

The partial molar volume of compound A in a mixture of A and B is defined as :

V_a = \frac{dV}{dn_a}

Where V is volume and n are moles of a.

a. As molality is proportional to moles of substance, partial molar volume of glucose can be defined as:

Vₐ =  dV / dm =  d(1001.93 + 111.5282m + 0.64698m²) / dm

<em>Vₐ = 111.5282 + 1.29396m</em>

b. Replacing for m = 0.100m:

Vₐ = 111.5282 + 1.29396×0.100

<em>Vₐ = 111.6576</em>

<em></em>

I hope it helps!

3 0
3 years ago
It takes 26.8 mL of a 0.0700 M NaOH standard solution to neutralize a 250 mL sample of lactic acid (C3H6O3). What mass of lactic
Butoxors [25]
There is 1 OH- in 1 molecule of NaOH. 
Also, there is 1 H+ in 1 molecule of lactic acid.

So the reaction is simple.
so just equate the moles
moles of OH- in NaOH = moles of H+ in lactic acid
26.8 x 0.07 = 250 x Mole of lactic
Moles of lactic = 0.0075

so mass = 0.0075 x 90.8 =  0.681 g

4 0
3 years ago
What is the mass of sodium in 3 moles of sodium chloride
SashulF [63]

4.00 moles of sodium has a mass of 91.96 grams.

To find an element's molar mass, you can use its atomic weight.

8 0
3 years ago
True/False (A= True &amp; B =False) 46. Blood is a tissue. 47. Elastic cartilage is found in the ears, nose, epiglottis and lary
swat32

Answer:

46.A 47.B 48.B 49.A.50.A.51.B.52.B

5 0
3 years ago
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