The Law of Superposition allows us to determine:

a
which rock layers are the oldest
b
the relative age of layers of rocks and the fossils in them
c
the exact or absolute age of rock layers
d
a and b are correct

Answers

Answer 1

Answer:

d . a and b are correct

Explanation:

The law of superposition allows us to determine the age of rock layers and also that of the fossils within them.

The law of superposition states that "in an undeformed sequence of strata, the oldest rock layer is at the bottom and the youngest is on top".

Using this law, geochronologists can determine the relative ages of rock layers. The youngest layer will be found on top. The oldest at the bottom of the sequence. The arrangement of the layers and the fossils there in can also tell us about the ages of the fossils themselves.

Related Questions

When a lithium atom becomes ionized its new electron configuration is 4 points
the same as which element?

A. Ar
B. Mg
C. He
D. Fe

Answers

Answer:

C. He

Explanation:

When lithium is ionized, its new electronic configuration is the same as that of a helium atom.

 Lithium is made up of 3 electrons with a configuration of:

                     2, 1

it has 1 electron in its outermost shell.

As a metal lithium will prefer to lose an electron due to its electropositivity.

    On losing an electron, it will have 2 electrons remaining

Now, Helium has 2 electrons and this makes it similar to Lithium that has lost one electron.

This makes Lithium isoelectronic with Helium.  

A snail takes 36 minutes to cross a highway. How many minutes would it take the snail to cross the same highway 7 times?

Answers

Answer:

252

Explanation:

7(36) = 252

The snail will take 4.2 hours to cross the highway.

HELP PLS , CHEMISTRY

Answers

Answer:

N2H4

Explanation:

Find the mass of the empirical formula, which is 16.03 Take the formula mass and divide it by the empirical mass. This should give you an answer of 2 (well, 1.99 but it is close enough to a whole number to where you can just use 2). Multiply the subscripts of NH2. N has a subscript of 1, so now it will have a subscript of 2. H has a subscript of 2, so it will now have a subscript of 4. Therefore, your answer is N2H4.

Question 1 (2 points)
The higher the frequency of a wave, the lower the energy.
True
False

Answers

Answer:

False

Explanation:

There is a direct relationship between wave frequency and energy...

The higher the frequency, the higher the energy

alternatively, the lower the frequency, the lower the energy

50 Points! Will Mark Brainliest!
How do you find the mass in grams of one formula unit of a compound given all the atomic masses of every element in the compound?

Answers

Answer:

Explanation:

The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit (amu, also known as daltons, D).  The atomic mass is a weighted average of all of the isotopes of that element, in which the mass of each isotope is multiplied by the abundance of that particular isotope.  (Atomic mass is also referred to as atomic weight, but the term "mass" is more accurate.)

Answer:

The characteristic molar mass of an element is simply the atomic mass in g/mol. However, molar mass can also be calculated by multiplying the atomic mass in amu by the molar mass constant (1 g/mol). To calculate the molar mass of a compound with multiple atoms, sum all the atomic mass of the constituent atoms.

Explanation:

How many atoms of oxygen (O) are represented in the chemical formula shown below?
2 CO2
4 atoms of oxygen
O 2 atoms of oxygen
1 atom of oxygen
6 atoms of oxygen

Answers

Aaaaaaaaaaaaaaaaaaaaaaaa

Answer:

4 atoms of oxygen

Explanation:

Which compounds are organic?

Answers

Answer:

NaCI

Explanation:

6. Calculate the mass of an object that has a density of 19.3 g/mL and a volume of 100. mL. (Show Your Work)

7. Calculate the volume of an object that has a density of 7.8 g/mL and a mass of 500. G. (Show Your Work)

Answers

Answer:

6. mass=1930g

7.64.10ml

Explanation:

6. mass=density time volume

7.volume=mass divide by density

Present Your Findings
1. Make a graph of the data collected.
a. Label the x-axis as time.
b. Label the y-axis as the number of undecayed atoms.
c. Be sure to title the graph.
d. Turn the graph into your teacher.
2. Write a summary paragraph discussing this experiment and the results. Use the following questions to help guide the
content of your paragraph.
a. What was your hypothesis? According to your data, do you think your hypothesis was correct?
b. What is a half-life?
c. When does a radioactive sample emit the largest number of decay particles? Why is this information important?
(How can it be applied in our world today?)
d. Do you think the shape of the curve on your graph would change if you increased the half-life to 20 seconds?
What does this reveal about radioactive decay?
e. Do you think the shape of the curve on your graph would change if you started with a smaller sample, say 50
atoms (pennies)? What does this reveal about radioactive decay?

Answers

Answer: To your project!!

Experiment Half-Life

a. My hypothesis is that when we get through 6 half-life’s you will be left with no atoms, and each time the atom number will decrease. Half of my hypothesis was correct whilst the numbers did decrease we, after 6 trials were left with one undecayed atom.

b.what is a half life?

the time required for the decay of one-half of the atoms in a sample of radioactive material

c. When does a radioactive sample emit the largest number of decay particles? when it first starts to decay

Why is this information important? Half-Life and decay is important today because it helps us determine the date of death and birth of ancient mummies.

d. Do you think the shape of the curve on your graph would change if you increased the half-life to 20 seconds? Yes different data would arise and that would change the graph.

What does this reveal about radioactive decay? The longer a material or substance takes to decay the larger the amount of decayed material or substance will come from the substance

e. Do you think the shape of the curve on your graph would change if you started with a smaller sample, say 50 atoms (pennies)? Yes, again different data would arise and that would change the graph.

What does this reveal about radioactive decay? The smaller the sample the quicker it will decay. And the less product that comes from the sample.

Your project is done, it worked for me hope it does for you? DON'T USE THE EXACT SAME WORDS IT'S SUS

here is the graph too!

Answer:

Hey I dont know if you got the same project as me but I had to record pennies and make a graph so I recorded pennys here

Explanation:

first half-life =  tails 49 : heads 51

second half-life = tails 19 : heads 29

third half-life = tails 8 ; heads 11

fourth half-life = tails 2 ; heads 6

fifth half-life = tails 1 ; heads 1

sixth half-life = I didnt know what to say so I put 1

hope this helps someone

Using just the valence electrons on each atom determine which 2 atoms should be in the same group?


atoms 1 and 2

atoms 3 and 4

atoms 2 and 3


O atoms 1 and 4

Answers

Answer:

Explanation:

Atom 1 and 4 because they have the same number of valence elctrons in its outermost shell

What would happen if we couldn't carry respiration out?

Answers

Answer:

There would be no energy for cellular activities

Explanation:

Cellular respiration is the process whereby living organisms breakdown ingested food in their cells in order to obtain energy in form of ATP. In other words, respiration converts the stores energy in food molecules into usable energy by the cell. The general equation of the process is as follows:

C6H12O6 + 6O2 → 6CO2 + 6H2O

The process of cellular respiration is carried out by every living organism in order to obtain energy to perform their various metabolic activities. Hence, without RESPIRATION, there would be no energy (ATP) for use by the cell, which utterly means no cellular activities will take place.

How do core electrons relate to the ionization energy of the atom?

Answers

Answer:

For any given element, ionization energy increases as subsequent electrons are removed. For example, the energy required to remove an electron from neutral chlorine is 1251 kJ/mol. ... An even sharper increase in ionization energy is witnessed when inner-shell, or core, electrons are removed.

Hope it helps :)

A photographic "stop bath" contains 160ml of pure acetic acid, HC2H302(1) in 650ml solution. what is the v/v concentration of acetic acid in the stop bath?

PLEASE EXPLAIN IT STEP BY STEP ​

Answers

Answer:

discupaeu não sei

um belo dia abençoado

Molar mass
Please give me the answers and explain

Answers

Explanation:

The molar mass of a substance is the mass in grams of one mole of the substance. In a compound, add the atomic masses of the components.

 HCl

 Atomic mass of H  = 1g/mol,  Cl = 35.5g/mol

   HCl  = (1 + 35.5) = 36.5g/mol

 ZnF₂

Atomic mass of Zn  = 65.4g/mol, F = 19g/mol

      ZnF₂  = 65.4 + 2(19) = 103.4g/mol

 K₂CO₃

   Atomic mass of K = 39, C  = 12, O = 16

    K₂CO₃  = 2(39) + 12 + 3(16)  = 138g/mol

 FePO₄

Atomic mass of Fe = 55.8, P = 31, 0 = 16

 FePO₄ = 55.8 + 31 + 4(16) = 150.8g/mol

Cu₂S

  Atomic mass of Cu = 63.5g/mol, S = 32

    Cu₂S = 2(63.5) + 32 = 159g/mol

Each term in the series represents a sinusoidal component with a frequency of (kπ/4) and an amplitude of 4.

To express the given periodic signal x(t) in the form x(t) = ∑[k=0 to infinity] A_k cos(w_kt + ϕ_k),\

we can use the formula for the Fourier series representation of a periodic signal.

1. First, let's find the values of A_k, w_k, and ϕ_k using the given Fourier series coefficients.

The given coefficients are:

a_1 = a_-1* = j

a_5 = a_-5 = 2

Since x(t) is real-valued, the coefficients for negative frequencies (a_-k) are the complex conjugates of the coefficients for positive frequencies (a_k).

From the given coefficients, we can determine the values of A_k:

A_1 = a_1 + a_-1 = j + conj(j) = j - j = 0

A_5 = a_5 + a_-5 = 2 + conj(2) = 2 + 2 = 4

Since the fundamental period T is 8, the fundamental frequency is ω_0 = 2π/T = 2π/8 = π/4.

The values of w_k can be determined as:

w_0 = 0

w_k = k * w_0 = k * (π/4) for k ≠ 0

The values of ϕ_k can be determined as:

ϕ_0 = 0

ϕ_k = arg(a_k) for k ≠ 0

2. Now, let's express x(t) in the desired form using the determined values.

x(t) = A_0 cos(w_0t + ϕ_0) + ∑[k=1 to infinity] A_k cos(w_kt + ϕ_k)

Substituting the values we found:

x(t) = 0 cos(0t + 0) + ∑[k=1 to infinity] 4 cos((kπ/4)t + arg(a_k))

Simplifying:

x(t) = ∑[k=1 to infinity] 4 cos((kπ/4)t + arg(a_k))

This is the expression of x(t) in the desired form.

Remember that the series is infinite, so it includes all integer values of k.

learn more about sinusoidal from:

https://brainly.com/question/23757592

#SPJ11

What is characteristic of an ionic bond?

Answers

Answer - D electrons are lost from one atom and gained by another.

Which reason explains why gas bubbles are released when a carbonated beverage is opened?

Answers

pressure is released by opening the soda container, the liquid cannot hold as much carbon dioxide, so the excess bubbles out of the solution.

ANYONE PLEASE!!! MORE HELP ON THIS!!! all you have to do is say if it is ionic, binary, covalent or an acid. remember i give all my points to whoever is the most helpful!!!


11. N2S

12. SeF2

13. AsCl3

14. HClO

15. Be(OH)2

16. SO3

17. KMnO4

18. HClO4

19. Cu2S

20. BF3

21. H2SO4

22. CaI2

23. Pb3(PO4)2

24. HCH3COO

25. Ca(CH3COO)2

26. P2O5

27. BaCl2

28. K2SO4

29. Pb(ClO3)2

30. H3PO4

Answers

Answer:

21 is ionic aicid only one 1 know

14 is an acid, 18 is an acid, 21 is an acid, 24 is an acid, 30 is an acid. i know those off the top of my head cause there’s an “H” in front of it

Resistance depends on which three properties of a wire?

Color and texture are not directly related to a wire’s resistance.

color, thickness, texture
thickness, length, temperature
length, texture, temperature
temperature, color, texture

Answers

Answer:

Thickness, length, and temperature

Explanation:

The resistance of a long wire is greater than the resistance of a short wire because electrons collide with more ions as they pass through. The relationship between resistance and wire length is proportional. A thicker wire simply has more 'lanes' on the go at once. A higher current for a given voltage means a lower resistance. The thicker wire has a lower resistance than the thinner wire does. The resistance of a wire decreases with increasing thickness. The resistance of a metal conductor is due to collisions between the free electrons of the electric current and the metal ions of the wire. If the temperature of a metal conductor increases, the ions of the metal vibrate more vigorously. The resistance of an NTC thermistor decreases with increasing temperature.

The resistance of a wire depends on the following three properties of a wire, thickness, length, temperature.

What is resistance of a wire?

The resistance of a wire is the opposition to the flow of current offered by the wire.

The resistance of a wire depends on the flowing;

R = ρL/A

where;

L is length of the wireA is area of the wire (thickness)ρ is resistivity of the wire (depends on temperature)

Thus, the resistance of a wire depends on the following three properties of a wire, thickness, length, temperature.

Learn more about resistance here: https://brainly.com/question/17563681
#SPJ2

The plant on the left is growing more because it has been receiving more water

Answers

Answer:

uhhh well ig btw what plant

Explanation:

it would be more sunlight to

How many grams of sodium bicarbonate are in 1.8 x 1023 formula units?NaHCO3

anyone faaaaast please:(((((((((

Answers

Answer:

Mass = 25.2 g

Explanation:

Given data:

Number of formula units of NaHCO₃ = 1.8×10²³

Mass in gram = ?

Solution:

The given problem will solve by using Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.  The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ formula unit

1.8×10²³formula unit × 1mol  /  6.022 × 10²³ formula unit

0.3 mol

Mass in gram:

Mass = number of moles × molar mass

Mass = 0.3 mol × 84 g/mol

Mass = 25.2 g

Solomon wants energy on a sound wave to be carried more quickly through a metal medium. Which could he do? A. Decrease the temperature. B. Increase the temperature. C. Use a gas medium instead. D. Use a liquid medium instead

Answers

Answer:

B. increase the temperature

Explanation:

increasing the temperature results in energy being carried more quickly

Can someone answer???I’ll give brainlist and points?!??

Answers

Answer:

yes i can anwser

Explanation:

Which of the following molecules is not an exception of octet rule? *
(a) BF₃
(b) PF₅
(c) CO₂
(d) IF₇

Answers

CO2 is the correct answer since CO2 has exactly 8 electrons in its valence shell...hope you understood it :)

What would you observe when zinc is added to a dilute hydrochloric acid? Write the chemical reaction that takes place?
NEED HELP PLZ FAST
.​

Answers

Answer:

1) Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g)

You would see the reaction forming bubbles vigorously. Hydrogen gas is produced in the process.

Which of the following is a substance?

A. air
B. alloy
C. soil
D. seawater
E. carbon​

Answers

Answer:

D

Explanation:

hope this helps

It is D :)))))))))))))

POSS
Explain when gold is considered an element and when it is considered a solution.

Answers

Answer:

Gold is an element even when it is in a solution

Explain how the densities of each layer of the Earth are different.

Answers

Answer:

The atmosphere and Earth's interior are layered by density. ... Earth's core, at its center, is denser than its crust. The lowest layer of the atmosphere is denser than the upper layer. Earth's liquid metal outer core has convection, which generates the magnetic field.

Explanation:

hope this helps!

Answer:

Gravity pulls denser materials to the center of the earth, so it is basically a sphere of wrapping paper that gets denser and denser the more you unwrap the layers. The core is the most dense, and the crust is the least dense.

Hope This Helps! :) Plz Give Brainliest!

A cylinder at left with balls evenly spaced throughout the cylinder with an arrow leading to a cylinder at right with balls stacked near the bottom of the cylinder.
Which change of state is shown in the model?

condensation
deposition
boiling
freezing

Answers

Answer:

deposition

Explanation:

Answer:

B

Explanation:

Scalar quantities include what 2 things?
A. Number and direction
B. Size and direction
C. Numbers and units
D. Units and directions

Answers

Answer:

D

Explanation:

Units and directions

how to fix an i phone

Answers

in what way? what is broken
Other Questions
Which of these graphs do not represent constant rates of change? Check all that apply. On a coordinate plane, a parabola opens up. On a coordinate plane, a line has a negative slope. On a coordinate plane, a line has a positive slope. On a coordinate plane, a line is constant and then curves rapidly up. Hoping to lure more shoppers downtown, a city builds a new public parking garage in the central business district. The city plans to pay for the structure through parking fees. During a two-month period (44 weekdays), daily fees collected averaged $1,264 with a standard deviation of $150. What is a 90% confidence interval for the mean daily income this parking garage will generate someone, please explain to me these poem lines (DETAILED)'And when I go to dancing-class on Saturdays at three,I find the First Position very difficult for me.Though I put my best foot foremost, and good time I try to keep,To my chagrin, I often find a foot or two asleep.Athletics I attempted, but, alas! I must admitThat every exercise I tried I put my foot in it.I think I'll join a foot-ball team,--as many friends suggest,--Before I've one foot in the grave and gout in all the rest.But now I'll say good-morning; for, my friend, I have to stopTo get my boots blacked neatly at this little boot-black's shop;And, as you may imagine, it will keep me here some time,But, what is worse, I'll have to pay him many a hard-earned dime.'The centipede want to polish his shoes but it will take some time and he will have to pay for making the shoes backAnd as he went he murmured, in a thoughtful undertone:'I'm a happy little Spider, and I'm very glad indeed,That I was born an octoped and not a centipede!' Which number line represents the solutions to lx - 5| = 1? please help its so late at night Prepare a dialogue on topic I have cracked teeth Please please please please help me!!! What is x?What is y? Convert to to decimal : 83/10 what is the 110th term of -1,-3,-5,-7 Marcus painted one-third of his bedroom in fourth-fifths of an hour. At this rate, how long would it take him to paint the entire room? How do you know when an investment is successful? What best describes the major issue with the Napoleonic Code? Solve the system by substitution, solve by elimination. Please do both & explain. Dont answer if you dont know. Will mark brainliest. Thank you :) Identify 3 actions from humans that have released greenhouse gases into the atmosphere Write the slope intercept form of the equation of the line through the given point plz Please help me!!REALLY HELP ME Find the value of x.Area of circle = 25(pi)radius = x + 3 Approximate the root by using a linearization centered at an approximate nearby number101 Do anyone know this ?