CHEMISTRY HIGH SCHOOL

When a rock turns into (), all the material it contains is destroyed and melted by extreme heat. For this reason, igneous rocks don’t contain any()
.

Answers

Answer 1
Answer:

Magma, Fossils is the correct answer.

  • When a rock turns into magma all the material it contains is destroyed and melted by extreme heat.
  • For this reason, igneous rocks don't contain any fossils.
  • The term magma represents molten rocks. The heat is so much that it even melts the rocks, so any chances of preserving fossils is negligible.
  • Igneous rocks are formed after the cooling and solidification of magma. So it is obvious they can't preserve any previous information before the magma.  

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Answer 2
Answer:

Answer: a and c

Explanation:

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List three possible results of a double replacement reaction

Answers

1. two compounds form
2. precipitate forms
3. ions exchanged between the two reactants

The study of all chemicals containing carbon1. Applied Chemistry
2. Bio Chemistry
3. Organic Chemistry
4. Inorganic Chemistry

Answers

The correct answer is 
3. Organic Chemistry.....

Answer:

Organic chemistry

Explanation:

Which correctly defines a basic solution?a. [H+] is not present.
b. [H+] is equal to [OH−].
c. [H+] is less than [OH−].
d. [H+] is greater than [OH−].

Answers

C. A basic solution is defined as a solution which has more hydroxide (OH-) ions than hydronium ions (H+)
H+ is less than OH- .

What is the correct electron configuration for Si (atomic number 14)?A. 1s2 2s2 2p6 3s2 3p2
B. 1s2 2s2 2p6 3s2 3p3
C. 1s2 2s2 2p6 3s1 3p3
D. 1s2 2s2 2p6 3s2 2d3

Answers

the first one is the correct answer

Answer:

1s2 2s2 2p6 3s2 3p2

Explanation:

you're welcome

**98 POINTS** Given 1.00 gram of (NH4)2 CO3, how many grams of this sample would be due to hydrogen?

Answers

OP already did it - CONGRATS!!

here are the steps 2 get the same ans:

(NH4)2 CO3 has 2x N, 8x H, 1x C and 3x O per molecule

so its molecular mass = 2x14 + 8x1 + 1x12 + 3x16

=28+8+12+48

=96g

of that 96g, 8x1=8g is due to Hydrogen

so by ratio n proportion, 1.00g will have 1x8/96 = 1/12g = 0.083g of H

When a neutral atom undergoes oxidation, the atom’s oxidation state(1) decreases as it gains electrons(2) decreases as it loses electrons(3) increases as it gains electrons(4) increases as it loses electrons

Answers

When a neutral atom undergoes oxidation, the atom's oxidation state increases at it lose electrons. 
The acronym "OILRIG" can be used to remember this: Oxidation is Losing electrons, Reduction is Gaining electrons. Therefore, when an atom undergoes oxidation, it loses electrons. This makes its net charge more positive, so its oxidation state increases.
This best fits choice (4).
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