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expeople1 [14]
3 years ago
8

if a layer of sandstone is in contact with a mass of granite that contain small pieces of the Sandstone which rock is older

Chemistry
1 answer:
DedPeter [7]3 years ago
6 0

The sandstone is older.in order for the granite to have been formed with sandstone in its precnese then it had to have already exsisted in that area..making it older.

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How many cm3 are contained in 3.83 x 107 mm3?
gulaghasi [49]

Answer:

3.38 x 10⁴cm³

Explanation:

Given that:

      Volume of the substance  = 3.83 x 10⁷mm³

The problem entails use to convert from mm³ to cm³;

                    1000mm³   = 1cm³

So;

          3.83 x 10⁷mm³ will produce \frac{ 3.83 x 10^{7} }{1000}    = 3.38 x 10⁴cm³

5 0
3 years ago
(04.02 LC) Based on the cell theory, which of the following is true?
prohojiy [21]

Answer:

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4 0
2 years ago
Match each element to the number of electrons in its valence shell
blondinia [14]

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Explanation:

The valence shell can be define as the outermost shell of an atom that contains the valence electrons.

Beryllium (Be), electronic configuration; 1s2 2s2, = 2 electrons in its valence shell.

Carbon (C), electronic configuration; 1s2 2s2 2p2, = 4 electrons in its valence shell.

Lithium (Li), electronic configuration; 1s2 2s1 = 1 electron in its valence shell.

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6 0
3 years ago
The atomic number of Re is 75. The atomic mass of one of its isotopes is 186. How many neutrons are in an atom of this isotope?
USPshnik [31]

Answer:

B.111

Explanation:

Atomic mass = number of protons(or atomic number) + number of neutrons

186 = 75 + number of neutrons

number of neutrons = 186 -75 = 111

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