1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ivann1987 [24]
3 years ago
5

Why would you not expect to find fossils in metamorphic and igneous rocks?

Chemistry
1 answer:
Marina CMI [18]3 years ago
8 0

Answer:

igneous rocks are made from molten,and therefore rarely have fossils in them.Metamorphic rocks are squished,put under pressure,and get heated to the extreme,so it's very rare for fossils to survive in these conditions.

You might be interested in
What branch of science studies The Periodic Table? 
Mrac [35]

Answers:

1. Chemistry

2. Cold

3. Heat

4. Protons and neutrons

5. Positive

6. Neutral

7. True

8. Nucleus

9. Protons

10. Nobel gasses

11. Dmitri Mendeleev

12. the bottom of the square

13. True

14. Helium

8 0
3 years ago
How many oxygen atoms<br> in 4 Al 2 O 3
Zolol [24]

 The  number of oxygen   atoms  that are  in 4 Al₂O₃  are 12 atoms


<u><em> Explanation</em></u>

  • The subscript  in  a chemical formula indicate the  number  of atoms of element  immediately   before the subscript.
  • coefficient  is the  number  in front  of  the formula  and tells  us how many molecules  of a given formula  are  present.
  • Since 4Al₂O₃  has coefficient of 4   and the subscript   of O is 3 the number of O atoms =  4 x 3=12 atoms

6 0
3 years ago
Please help fast, I will give brainliest!
8090 [49]

Answer:

You are right it's 8.2 g

Explanation:

pls can i have brainliest?

3 0
3 years ago
2 SO3 (g) + Heat &lt;-----&gt; 2 SO2 (g) + O2 (g)
Step2247 [10]

Answer:

The concentration of SO₂ will decreases

Explanation:

As you can see in the reaction

2 moles of gas ⇆ 3 moles of gas

Based on Le Châtelier's principle, a change doing in a system will produce that the system reacts in order to counteract the change made.

If the pressure is increased, the system will shift to the left in order to produce less moles of gas and decrease, thus, the pressure.

As the system shift to the left, the concentration of SO₂ will decreases

7 0
3 years ago
Combustion analysis of toluene, a common organic solvent, gives 5.27 mg of co2 and 1.23 mg of h2o. if the compound contains only
kherson [118]
<span>C7H8 First, determine the number of relative moles of each element we have and the molar masses of the products. atomic mass of carbon = 12.0107 atomic mass of hydrogen = 1.00794 atomic mass of oxygen = 15.999 Molar mass of CO2 = 12.0107 + 2 * 15.999 = 44.0087 Molar mass of H2O = 2 * 1.00794 + 15.999 = 18.01488 We have 5.27 mg of CO2, so 5.27 / 44.0087 = 0.119749 milli moles of CO2 And we have 1.23 mg of H2O, so 1.23 / 18.01488 = 0.068277 milli moles of H2O Since there's 1 carbon atom per CO2 molecule, we have 0.119749 milli moles of carbon. Since there's 2 hydrogen atoms per H2O molecules, we have 2 * 0.068277 = 0.136554 milli moles of hydrogen atoms. Now we need to find a simple integer ratio that's close to 0.119749 / 0.136554 = 0.876937 Looking at all fractions n/m where n ranges from 1 to 10 and m ranges from 1 to 10, I find a closest match at 7/8 = 0.875 with an error of only 0.001937, the next closest match has an error over 6 times larger. So let's go with the 7/8 ratio. The numerator in the ratio was for carbon atoms, and the denominator was for hydrogen. So the empirical formula for toluene is C7H8.</span>
4 0
3 years ago
Other questions:
  • A mass of 3.6g of magnesium reacts in excess chlorine to form a chloride, if the mass of the chloride is 14.25g, find the formul
    9·1 answer
  • How would you distinguish a scientific theory from a scientific law?
    12·1 answer
  • The value of ΔH° for the reaction below is -126 kJ. The amount of heat that is released by the reaction of 25.0 g of Na2O2 with
    5·2 answers
  • Which substance is a diatomic molecule
    10·2 answers
  • An unknown metal has a density of 10.51 g/ml and a mass of 287.8 g. What is the
    12·2 answers
  • The following physical constants are for water, H2O.
    10·1 answer
  • What is the resistance of a blub when the voltage across is 6 V and the current is 0.2A?
    14·1 answer
  • Differences between hilum and micropyle​
    11·1 answer
  • in the following reaction, how does increasing the pressure affect the equilibrium? 2 so2 (g) o2 (g) ⇌ 2 so3 (g) heat
    14·1 answer
  • A chemist dissolves 43.3 g Li2S (MM: 45.95 g/mol) to make 0.500 L of solution.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!