What are the three eras in the geologic time scale? *

Answers

Answer 1
the Paleozoic
the Mesozoic
the Cenozoic

Related Questions

How many moles are present in 44.8 L of nitrogen gas (Na)?

Answers

Answer:

two moles

There are two moles.

Explanation:

i am a silvery white metal used to make salt​

Answers

Sodium lol
:.:.:.:.:.:.:

Identify processes that change matter to a liquid state

Answers

Condensation When steam is cooled, it releases thermal energy and turns into its liquid state. This process is called condensation.

What is the name of Na3N?
HELP PLEASEEEE !!!!

Answers

Answer:

the answer I's the first one

Which three elements are combined in lithium sulfate ?

Answers

Answer:

jsidndnxjxixdjdbsjsjdidnsjdjdidndjd

Help me on both of those questions please

Answers

Occurs evaporation and then the egg turns solid into a liquid

Answer:

Hey mate.....

This is your answer....

Explanation:

1. Evaporation

2. Liquid to solid

hope it helps you,

mark me as the brainliest.....

FOLLOW ME!

_______ store food or pigments ( I'm learning about cells)

Answers

Plastids store food or pigments

3. All the deer in Horry County represent which of the following?

species
biome
population
community

Answers

Answer:

community

Explanation:

Answer:

The correct answer is population. I took the test and got it right.

Determine the final temperature of sample with a specific heat of 1.1 J/g°C and a mass of 385 g if it starts out at a temperature of 19.5°C and 885 J of energy are added to it.

Answers

Answer:

T2 =21.52°C

Explanation:

Given data:

Specific heat capacity of sample = 1.1 J/g.°C

Mass of sample = 385 g

Initial temperature = 19.5°C

Heat absorbed = 885 J

Solution:

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT = Final temperature - initial temperature

885J = 385 g× 1.1 J/g.°C×(T2 - 19.5°C )

885 J = 423.5 J/°C× (T2 - 19.5°C )

885 J / 423.5 J/°C = (T2 - 19.5°C )

2.02°C = (T2 - 19.5°C )

T2 = 2.02°C + 19.5°C

T2 =21.52°C

The ____________________ two objects are from each other, the _____________ the force of gravity between them. fill in spaces

Answers

Answer:

Farther, lesser

Explanation:

The farther the two objects are from each other, the lesser the force of gravity between them.

The force of gravitational attraction between two bodies is inversely proportional to the distance between them.

This premised on the Newton's law of universal gravitation which states that "the gravitational force of attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distances between them".

So, the farther the distance, the lesser the gravitational attraction and vice versa.

Heat Shield Rock 5. How did Heat Shield Rock get its name?​

Answers

Answer:

Heat Shield Rock is a basketball-sized iron-nickel meteorite found on the Meridiani Planum plain of Mars by the Mars rover Opportunity in January 2005.

Heat Shield Rock

What is the smallest representative particle of an element?

Answers

Answer:

atom

Explanation:

The smallest representative particle of an element is an atom.

What are atoms

Atoms are the fundamental building blocks of matter and the smallest unit of an element that retains the chemical properties of that element. Each atom consists of a nucleus at the center, composed of positively charged protons and neutral neutrons, surrounded by a cloud of negatively charged electrons.

Atoms combine to form molecules or ions through chemical reactions, but they themselves represent the basic structure and identity of an element. Each element has a unique number of protons in its nucleus, known as its atomic number, which determines its position on the periodic table and its distinct chemical properties.

Learn more about element at

https://brainly.com/question/20096027

#SPJ6

Humans have developed ways to increase the of their
environment. true or false

Answers

Answer:

True......................had to do this because we need atleast 20 letters


Explain what happens to the particles in a substance during a physical change.

Answers

When a physical change occurs, the arrangement of particles within the substance may change, but the atoms in the molecules remain bonded together.

Answer:

Particles stay the same unless there is a chemical change whether the matter is solid, liquid or gas.

Explanation:

in physical changes no new materials are formed and the particles do not change apart from gaining or losing energy

Brainliest for an answer!

2 As (s) + 6 NaOH (aq) → 2 Na3AsO3 (s) + 3 H2 (g)


If 34.0g of As react with excess NaOH at STP, what volume of H2 will be produced in liters?


If you can answer this question quickly, I will mark you brainliest, I'm stumped to be honest.

Answers

The volume of H₂ : = 15.2208 L

Further explanation

Given

Reaction

2 As (s) + 6 NaOH (aq) → 2 Na₃AsO₃ (s) + 3 H₂ (g)

34.0g of As

Required

The volume of H₂ at STP

Solution

mol As (Ar = 75 g/mol) :

= mass : Ar

= 34 g : 75 g/mol

= 0.453 mol

From the equation, mol ratio As : H₂ = 2 : 3, so mol H₂ :

=3/2 x mol As

=3/2 x 0.453

= 0.6795

At STP, 1 mol = 22.4 L, so :

= 0.6795 x 22.4 L

= 15.2208 L


How many significant figures are in the value 0.00250 m?

Answers

Answer:

3 significant figures

Explanation:

Significant figures:

1) The given measurement have four significant figures 1234.

2)  All non-zero digits are consider significant figures like 1, 2, 3, 4, 5, 6, 7, 8, 9.

3) Zero between the non zero digits are consider significant like 104 consist of three significant figures.

4)  Leading zeros are not consider as a significant figures. e.g. 0.07 in this number only one significant figure present which is 7.  

5) The zeros at the right side e.g 2600 are also significant. There are four significant figures are present.

In given measurement (0.00250 m) number of significant figures are 3.

2,5 and 0

what will happen an unboiled egg is placed in the beaker of fresh water and salt water

Answers

Answer:

Explanation:

1

Which statements describe the fossil record? Check all that apply.

There is very little fossil evidence for the first 4 billion years of Earth.
There is very little fossil evidence for the last 600 million years of Earth.
Most of the fossil evidence is from the first 4 billion years of Earth.
Most of the fossil evidence is from the last 600 million years of Earth.
The fossil record is complete.
The fossil record is not complete.

Answers

Fossils are the preserved remains of organisms that have died and decayed. They are very useful in understanding the evolutionary history of organisms and to study ancient life forms.
Geologists use fossils to date sedimentary records by placing them in the order of their specific appearance.

Answer:

A D F

Explanation:

look at attachment if you don't believe me

A skateboard with a mass of 1.4 kg is accelerated with a force of 11.9 N.
Problem
If resisting forces are ignored, what is the acceleration of the skateboard?

A O 13.3 m/s2
BO 8.5 m/s2
CO 0.12 m/s2
D 16.66 m/s2
Submit Answer
Copyright © Education Galaxy, 2021. All Rights Reserved.

Answers

It would be C because you would do m divided by s squared and you would get 0.11 but you would round it to 0.12

what is rusting of iron?​

Answers

Answer:

Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust. Unlike rust, which can flake off the surface of iron and steel objects, the layer of aluminium oxide does not flake off.

Explanation:

Rusting = oxidation reaction
Iron = reacts with oxygen and water to form hydrated iron oxide, we then start to see rust.
This prevents the metal from coming in any contact with air. Hope this helps :)

How many liters of water is necessary to make a 1.14 M solution with 5.10 mol KNO3?

Answers

4.47 liters of water.

What is the geometry for MgF2?

Answers

Answer:

espero poderte ayudar

Explanation:

Answer:

2FMg

Explanation:

MgF*2=2FMg


True or false for these!!!! Please help

Answers

False
True
True
False
True
False
Hope this helps!

What is the percent yield of this reaction if 22.o g of Mgl2 is produced by the reaction of 25.0 g of Mg with 25.0 g of l2?

Answers

% yield = 80.719

Further explanation

Given

22.0 g of Mgl₂

25.0 g of Mg

25.0 g of l₂

Required

The percent yield

Solution

Reaction

Mg + I₂⇒ MgI₂

mol Mg = 25 g : 24.305 g/mol = 1.029

mol I₂ = 25 g : 253.809 g/mol = 0.098

Limiting reactant = I₂

Excess reactant = Mg

mol MgI₂ based on I₂, so mol MgI₂ = 0.098

Mass MgI₂ (theoretical):

= mol x MW

= 0.098 x 278.114

= 27.255 g

% yield = (actual/theoretical) x 100%

% yield = (22 / 27.255) x 100%

% yield = 80.719

Calculate the mass of hydrochloric acid needed to react with 15.8 moles of zinc.
HCl + Zn -> H2 + ZnCl2

Answers

Answer:

240.1428

Explanation:

I hope this helps! :<

Hi! I produce proteins inside the cell. What am I?​

Answers

Answer:

ribosome is the cell

Explanation:

hsduuejxkwnckwnirj

Ribosomes? I’m not sure but I think that’s it

Describe the changes to the coastline pictured above. Look particularly at North and South Monomy Island.

Answers

             Where is the picture?                                                                         

6 Li + Zn3(PO4)2 ------- > 2 Li3PO4 + 3 Zn




If 48.6 g of zinc is made, how many moles of lithium phosphate are also made? _______ moles

Answers

Moles of Lithium phosphate : 0.495

Further explanation

Given

6 Li + Zn₃(PO₄)₂ ------- > 2 Li₃PO₄ + 3 Zn

Required

Moles of Lithium phosphate

Solution

moles of Zinc(Ar=65,38 g/mol) :

= mass : Ar

= 48.6 : 65.38

= 0.743

From equation, mol ratio of Zn :  Li₃PO₄ = 3 : 2, so mol  Li₃PO₄ :

= 2/3 x mol Zn

= 2/3 x 0.743

= 0.495

Which of an atom's electrons are involved in chemical reactions?

ANSWER: D

A. The electrons that make one isotope different from another

B. The electrons closest to the nucleus of the atom

C. The electrons that determine the atomic number of the atom

D. The electrons farthest from the nucleus of the atom​

Answers

it’s C

i hope i help you but if not DO NOT FORGET STAY SAFE AT HOME

Answer:

D.

Explanation:

The electrons farthest from the nucleus of the atom​

Which element is in the same period as Potassium (K) and in the same
group as Flourine (F)?
O A. Bromine (Br)
O B. Oxygen (O)
O C. Selenium (Se)
O D. Argon (Ar)

Answers

Answer:

A. Bromine (Br)

Explanation:

Correct answer is A. Bromine (Br)
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