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Naddika [18.5K]
3 years ago
11

Radiometric dating is not useful to directly determine the age of _____ rock.

Chemistry
2 answers:
Reptile [31]3 years ago
8 0
Not useful to determines the age of Sedimentary rock
Likurg_2 [28]3 years ago
4 0
Radiometric dating is not useful to directly determine the age of an igneous rock. It is a technique used todate<span> materials such as rocks or carbon, in which trace </span>radioactive<span>impurities were selectively incorporated when they were formed. Hope this answers the question. Have a nice day.</span>
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On a distance-time graph, at 2 hours the graph is at a height of 20 meters, and at 3 hours it is at a height of 100 meters. What
Gnoma [55]

Answer:

80 m/hr

Explanation:

Changes from 20 to 100 meters in ONE Hour

    changes  80 meters in one hour    = 80 m/hr

8 0
2 years ago
Which of the following describes an endothermic reaction?
Alenkinab [10]
The endothermic reaction would be D. Batter becomes a pancake when heated. This is because the batter is absorbing the heat in order to turn into a pancake.

Answer is D. Batter becomes a pancake when heated.


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4 0
3 years ago
Atoms of which element have the most valence electrons?
grin007 [14]

Explanation:

neon has 8valence electrons

chroline has 7 valence electrons

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oxygen has 6 valence electrons

so neon has the most valence elctrons

6 0
3 years ago
Protons are bound together by
Olenka [21]
Protons are bound together by strong nuclear force .
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6 0
3 years ago
Determine the concentration of a solution (M) made by dissolving 18.8 g of sodium chloride (NaCl) in 750.0 mL of solution.
Viefleur [7K]

Answer:

0.429 M

Explanation:

To find the molarity, you need to (1) convert grams to moles (using the molar mass), then (2) convert mL to L, and then (3) calculate the molarity (using the molarity ratio).

(Step 1)

Molar Mass (NaCl): 22.990 g/mol + 35.453 g/mol

Molar Mass (NaCl): 58.443 g/mol

18.8 grams NaCl               1 mole
--------------------------  x  ------------------------  =  0.322 moles NaCl
                                     58.443 grams

(Step 2)

1,000 mL = L

 750.0 mL                1 L
------------------  x  -----------------  =  0.7500 L
                            1,000 mL

(Step 3)

Molarity (M) = moles / volume (L)

Molarity = 0.332 moles / 0.7500 L

Molarity = 0.429 M

5 0
2 years ago
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