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
stellarik [79]
3 years ago
7

Why can the geologic record be analyzed by looking at different rock layers?

Chemistry
2 answers:
nikklg [1K]3 years ago
6 0

Answer:B

Explanation:According to the law of superposition, sedimentary and volcanic rock layers are deposited on top of each other. They harden over time to become a solidified (competent) rock column, that may be intruded by igneous rocks and disrupted by tectonic events.

Ivanshal [37]3 years ago
5 0

Answer:

Answer:B

Explanation: I know byyy memorieeeeeeee!

You might be interested in
Which of the following ions is formed when the positive hydrogen ions from an acid bond to water molecules? он- ООН- он20* ОНО*​
Vesna [10]

Answer:

2ND ONE

Explanation:

5 0
3 years ago
Methanethiol, CH3SH, has a substantial dipole mement (1.52) even though carbon and sulfer have identical electronegativities. Ex
AleksAgata [21]

Answer:

The whole molecule is polar because Sulfur has lone pairs but Carbon doesn't. Lone pairs count more toward polarity, shifting dipole toward S.

Explanation:

Even though carbon and sulfur have identical values of electronegativities, the molecule, CH_3SH is polar because of the presence of the lone pairs on the sulfur atom.

The C-S bond is not polar because the both the atoms have electronegatiivty. <u>But S has lone pairs which can attract the bond pairs of the bond between the S and H and thus acquires slightly negative charge and H acquires slightly positive charge.</u>

6 0
3 years ago
What is the bond between a posative and a negative ion called
guajiro [1.7K]

Answer:

Your answer would be Ionic bond.

5 0
3 years ago
calculate the molar mass of a gas if 3.30 grams of the has occupies 660 ml at 735mmHg and 27 degrees C
AnnZ [28]
Use the ideal gas law PV = nRT and manipulate it to solve for n. PV/RT = n. Convert to SI units: 660ml -> 0.660 L 27 degrees -> 300 K Leave Pressure as is Use 62.36368 for R becuase you are using mmHg for Pressure. Now plug into the equation to get about 0.025928 mols. Divide the 3.30 grams by the mols to get about 127 g/mol.
8 0
3 years ago
A sample of He gas (3.0 L) at 5.6 atm and 25°C was combined with 4.5 L of Ne gas at 3.6 atm and 25°C at constant temperature in
In-s [12.5K]

Answer:

3.6667

Explanation:

<u>For helium gas:</u>

Using Boyle's law  

{P_1}\times {V_1}={P_2}\times {V_2}

Given ,  

V₁ = 3.0 L

V₂ = 9.0 L

P₁ = 5.6 atm

P₂ = ?

Using above equation as:

{P_1}\times {V_1}={P_2}\times {V_2}

{5.6}\times {3.0}={P_2}\times {9.0} atm

{P_2}=\frac {{5.6}\times {3.0}}{9.0} atm

{P_1}=1.8667\ atm

<u>The pressure exerted by the helium gas in 9.0 L flask is 1.8667 atm</u>

<u>For Neon gas:</u>

Using Boyle's law  

{P_1}\times {V_1}={P_2}\times {V_2}

Given ,  

V₁ = 4.5 L

V₂ = 9.0 L

P₁ = 3.6 atm

P₂ = ?

Using above equation as:

{P_1}\times {V_1}={P_2}\times {V_2}

{3.6}\times {4.5}={P_2}\times {9.0} atm

{P_2}=\frac {{3.6}\times {4.5}}{9.0} atm

{P_1}=1.8\ atm

<u>The pressure exerted by the neon gas in 9.0 L flask is 1.8 atm</u>

<u>Thus total pressure = 1.8667 + 1.8 atm = 3.6667 atm.</u>

6 0
3 years ago
Other questions:
  • The Rocket Club is planning to launch a pair of model rockets. To build the rocket, the club needs a rocket body paired with an
    13·2 answers
  • 2. Which of the following pairs of reactants will occur most quickly?
    9·1 answer
  • Thewood,papertowel,andaluminumfoilwereallatroomtemperaturewhenyou measured temperature for each object. Based on your results, e
    8·1 answer
  • What volume of 6.0M NaOH is required to make 300.0mL of 0.500M NaOH?
    15·1 answer
  • The reaction 20F2(9) —2F2(9) + O2(9) has an equilibrium constant K, in terms of pressures) at 25°C of 6.19x10-4. Calculate the c
    12·1 answer
  • 15 mL of acid 2 M was added to 20 mL of base 2 M into a calorimeter at room temperature (24 oC). The reaction mixture reached a
    10·1 answer
  • Para la siguiente reacción: 2NH 3(g) + CO 2(g) ———&gt; (NH 2 ) 2 CO (l) + H 2 O (l) a) ¿Cuántos gramos de NH 3 se necesitan para
    10·1 answer
  • List 3 elements that have similar properties or reactivity. Justify your answer with reasoning.
    5·1 answer
  • what is the chemical reaction in which the exchange of electropositive and electronegative ions occurs in aqueous solution​
    9·2 answers
  • What are the energy transformations in a fossil fuels power plant?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!