Help please and thank you so much

Help Please And Thank You So Much

Answers

Answer 1
I think it’s A I’m not positive about this question
Answer 2

Answer:

A

Explanation:

there cnt be an increase photosynthesis.

surely when its cold,leaves dropped.


Related Questions

Which is greater 50 degree celcius or 50 degree fahrenheit?with solution plz.....​

Answers

Answer: 50 degrees Celsius is hotter than 50 degrees F. 50 degrees Celsius is half way between freezing and boiling

Which of the following sets of descriptors matches the molecule below?

Image of two oxygen atoms bonded together to form O2.

A. Compound, allotrope, double bond, one element
B. Molecule, compound, single bond, allotrope
C. Simple structure, diatomic, double bond, molecule
D. Giant structure, single bond, compound, one element

Answers

Simple structure, diatomic, double bond, molecule. Hence, option C is correct.

What is a compound?

A pure substance made up of two or more different elements combined chemically in a fixed ratio is called a compound.

[tex]O_2[/tex] is a covalent molecule because each oxygen atom needs two valence electrons to complete its octet. To meet this need each oxygen atom shares two of its electrons with the other oxygen forming a strong oxygen-oxygen double-shared covalent bond.

Hence, option C is correct.

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How many grams are there in 2.34x10^23 atoms of Cu?

Answers

Answer 1


Explanation

Because it’s 1

The mass of the 2.34 × 10²³ atoms of copper is equal to 24.68 grams.

What is Avogadro's number?

The Avogadro constant can be defined as the proportionality factor that the number of constituent particles in a sample with the amount of substance.

Avogadro’s number can be described as a dimensionless number that represents the number of entities in one mole of any substance. These elementary entities can be molecules, atoms, ions, electrons, or protons, etc.

Avogadro’s constant has a value approximately equal to 6.022 × 10²³ mol⁻¹.

Given, the number of atoms of copper = 2.34 × 10²³

The atomic mass of Cu Copper = 63.5 g/mol

So 6.022 × 10²³ atoms of Cu have mass = 63.5 g

Then 2.34 × 10²³  Cu atoms will have mass = [tex]\frac{63.5 \times 2.34 \times 10^{23}}{6.02 \times 10^{23}}[/tex] = 24.68 g

Therefore, 24.68 grams of Cu are there in 2.34 × 10²³ atoms of Cu.

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true or false, water boils at 100°c

Answers

Answer:

This is true

Explanation:

plsss help
will mark BRAINLIEST

Answers

Answer:

c

Explanation: just a chemachal

1. What is the atomic mass of hydrogen if 99.985% is hydrogen-1 and 0.015% is hydrogen-2?​

Answers

The atomic mass of Hydrogen : 1.02985

Further explanation  

Isotopes are elements that have the same Atomic Number (Proton)  

Atomic mass is the average atomic mass of all its isotopes  

In determining the mass of an atom, as a standard is the mass of 1 carbon-12 atom whose mass is 12 amu  

An atomic mass unit = amu is a relative atomic mass of 1/12 the mass of an atom of carbon-12.  

Mass atom X = mass isotope 1 . % + mass isotope 2.% ..

99.985% is hydrogen-1 and 0.015% is hydrogen-2

The atomic mass of Hydrogen :

[tex]\tt atomic~mass~H=0.99985\times 1+0.015\times 2\\\\atomic~mass~H=1.02985[/tex]

What is the location of elements in the periodic table related to?

Answers

Answer:

.

Explanation:

An element's location in the periodic table is largely depending on its electrons. The number of valence shell electrons determines its group, and the type of orbital in which the valence electrons lie in determines the element's block. Sometimes during these groups there are more like the alkali metals the non metals and gases :)

Determined which equation is balanced or unbalanced.

Answers

Answer:

1. balanced

2.unbalanced

3.unbalabced

4.balanced

What is it called when a rock is broken down into smaller pieces by ice, glacier or water ? Chemical weathering, physical weathering, deposition, pollution

Answers

Answer:

deposition I hope this helps!!

Explanation:

Answer:physical weathering

Explanation:


A diver's tank contains helium at 924 psi,
nitrogen at 1456 psi and oxygen. The total
pressure is 2803 psi. What partial pressure is
exerted by the oxygen?

Answers

423 psi

Hope this helps and GOOD LUCKKK :)))

The __________________ is the process by which gases in the atmosphere absorb and reradiate heat.

Answers

Answer:

Greenhouse effect

Explanation:

Answer: water vapor, carbon dioxide and other gases absorb and reradiate thermal energy.

Explanation:

Criminalist Julie Sandel is investigating a series of threatening notes written in pencil and sent to a local politician. A suspect is arrested and Julie directs the suspect to prepare writing samples to compare to the writing on the notes. She has the suspect sit at a desk in an empty office and gives him a pen and a piece of paper. She begins to read one of the notes and asks the suspect to write the words she dictates. After reading about half a page, she stops, then dictates the same part of the note a second time for the suspect. At one point, the suspect indicates that he does not know how to spell one of the words, so Julie spells it for him. After completing the task, Julie takes the origi- nal notes and the dictated writing from the suspect to a document examiner. What mistakes, if any, did Julie make?

Answers

Answer:

See explanation

Explanation:

Julie Sandel, the Criminalist  made several mistakes in handling this investigation. They include;

It is true that handwriting can be deduced by comparing a suspects's handwriting to the questioned document, however Julie made a mistake by not making the suspect to write many pages. The suspect may intentionally decide to change his/her hand writing. This trick can be neutralized by asking the suspect to write several pages.

Secondly, the suspect ought to have been given a pencil and paper similar to the one used to write the threatening document. Rather, Julie gave the suspect a pen.

Thirdly, the suspect only wrote half a page instead of a full page. Secondly, Julie took only two exemplars when she should have taken more.

She should not have dictated the spelling of any word to the suspect. The examiner is not supposed to do that.

The threatening documents should have first been shown to the document examiner before taking the exemplars.

PLS PLS PLS HELP I WILL MARK YOU BRAINLYEST PLS

Answers

Answer:

A: Endoplasmic reticulum

B: Chroloplast

C: Mitochondrion

D: Cytoplasm

E: Cell wall

Explanation:

Identify the following structure as an atom, molecule, or compound molecule.


Hydrogen



A.atoms
B. molecules
C.compound molecules​

Answers

Answer:

A

Explanation:

The answer is A because Hydrogen is an Atom consists of 1 electron only.

Good luck

what are the energy transformations taking place in your alarm clock

Answers

Answer:

Explanation:

The clock now has potential energy. When the alarm rings, the potential energy is converted into kinetic energy and sound energy.

Alarm clock runs due to the electrical energy. Due to the electric current, the electric motor rotates the blade. It means that the electrical energy is converted into mechanical energy.

The mechanical energy finally generates vibrations which cause sound.    

Thus, energy transformation which takes place in alarm clock will follow the order-

Electrical to mechanical to sound.

THIRTY POINTS I NEED HELP HURRY What is the volume of the cone?

Answers

Answer:

V=πr2h 3

Explanation: I would give more but need more i information

Answer:there u go

Explanation:The volume V of a cone with radius r is one-third the area of the base B times the height h . Note : The formula for the volume of an oblique cone is the same as that of a right one. ... If the heights of a cone and a cylinder are equal, then the volume of the cylinder is three times as much as the volume of a cone

What is the name of the following chemical compound?

Answers

Answer: Dinitrogen pentoxide

Explanation:

Answer:

Dinitrogen Pentoxide

Explanation:

if u know that answer i will mark has brainliest​

Answers

Answer:

The clear liquid is less dense than the black liquid, which is why it floats on top. If the volume were different, you would visually see more clear liquid than black and vice versa.

The clear liquid is less dense than the black liquid

Answer:

A. The clear liquid is less dense than the black liquid

Explanation:

Since the clear liquid since on top of the black one it's density is less. Whatever liquid has a higher density will sink to the bottom of the flask.

How are Earth's continents related?
Please help due at 11:45!

Answers

All the continents were once all together in a huge landmass called Pangea.

two or more atoms joined together form a _______

Answers

Answer:

When two atoms join together they make compounds

Explanation:

A molecule is formed when two or more atoms join together chemically. If atoms combine that are of two or more different elements, we call that a compound. All compounds are molecules, but not all molecules are compounds.

Solid carbon dioxide (CO2), also known as dry
ice, changes into a gas at room temperature. An
image of this change can be seen below.
Is this an example of a physical change? Why
or why not?

Answers

Answer:

yes

Explanation:

yes because the ice changes forms physically and can be changed back. not 100% sure tho

Answer:

shiii ion even know like i cant even tell u tha

Explanation:

bro 2 of my bruddas got locked up 2 days ago one of em got shot before the cops took him    

true or false, vaporization that occurs at the surface of a liquid is called evaporation

Answers

Answer:

True

Explanation:

Vaporization that happens below the surface is boiling, above the surface is evaporation :)

Answer:

True

Explanation:

it evaporates because of the temperature difference

are Li, Na and K in the same group

Answers

Answer: Yes, they are.

Explanation:

Yes, they are. Li, Na, and K are referring to  Lithium, sodium, and potassium.

They are all belonging to the same group which is called the alkali metals group.

They are having the same number of valence electrons i.e. 1.

This group of the alkali metals are considering tree more metals in it which are Rb, Cs, and Fr.

Which orders the activities from the greatest to least impact to reduce consumption of fossil fuels?(1 point)

carpool to work, walk to work, drive an electric car to work

walk to work, carpool to work, drive alone to work

drive an electric car to work, walk to work, carpool to work

drive alone to work, drive an electric car to work, carpool to work

Answers

Answer:

walk to work, carpool to work, drive alone to work

Explanation:

Using the Assignment: Locating the Epicenter, What was the length of the radius of the circle of from the Buenos Aires station? (in cm)
Question 1 options:


3.2 cm


4.8 cm


5.76 cm


8 cm

Answers

It may be 4.8cm? Tell me if i’m wrong or right. I’m so sorry if it’s wrong.

6CO2 + 6H20 --> C6H12O6 + 602
What is the total number of grams of water needed to make 6.2 moles of CoH1206?
79.5 g
402.9
670.2 g
381.2 g

Answers

I think it’s 79.5 g don’t thank me and sorry if you get it wrong

Steel has a density of 7.8 g/cm3. What is the volume of a 78-gram piece of steel?

Answers

Answer:

10 cm³

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} \\[/tex]

From the question we have

[tex]volume = \frac{78}{7.8} \\ [/tex]

We have the final answer as

10 cm³

Hope this helps you

Please help me #6!!!!!!!!

Answers

I believe that the answer is 12 because there is already 3 O molecules and since its in parentheses with 3 outside it that means that there are 3 of those CO molecules meaning that for every 1 CO there will be 3 O’s so 3, four times Is 12

The illustration below shows the human skeletal system. Use the illustration to any questions at follow
Skull
Facial Cranium
bones
Clavice
Scapula
Humerus
Vertebral
column
Sternum
Una
Ribs
Radius
Sacrum
Carpals
Metacarpals
Phalanges
Tarsels
-Femur
-Patella
-Tibia
Fibia
Metatarsels
Phalanges
Using the illustration, which function do the bones of the skull mainly perfom?
A. They allow movement
B. They produce proteins
C. They protect tissues and organs
D. They connect muscles to tissues

Answers

im pretty sure its C, if im right please give me brainlist

The function where the bones of the skull mainly perfom should be that they protected the tissue and organs.

What is tissue and organs?

Here the tissue and organs should be considered as the basic structural units with respect to the bodies.

Here the tissues should be comprise of the cell collections that have the same kind of function while on the other hand, the organ should be the tissue collections.

Therefore, it protected the tissue and organs.

learn more about tissue here: https://brainly.com/question/19031918

The elements on the Periodic Table of the Elements are arranged in order of increasing

Answers

Answer: The Atomic Number increases. Hope this helps!!!

Explanation:

Elements are arranged from left to right and top to bottom in order of increasing atomic number. Order generally coincides with increasing atomic mass.

Answer:

The Atomic number increases....

Explanation:

Duh

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