Chemistry High School

Question 4 (1 point)
Model A
In the molecule above, the black circles are Carbon, the blue circles are Hydrogen
and the red circles are Oxygen. Which formula below is correct for this molecule?
C4H404
C2H402

Question 4 (1 Point)Model AIn The Molecule Above, The Black Circles Are Carbon, The Blue Circles Are

Answers

Answer 1

Answer:

C2H4O2

Explanation:

Jus took USA Test prep test

Related Questions

Three students are labeling organisms in their diorama. Zola wants to label the algae and mushrooms as photosynthetic. Saffi wants to label plants and algae as photosynthetic. Ahmed wants to label plants and all bacteria as photosynthetic. Who is correct?
-Saffi and Ahmed
-Zola only
-Saffi only
-Zola and Ahmed

Answers

Answer:

Saffi only

Explanation:

I just took the test and that was the correct answer :)

Which among the following is not present in pure sugar ?
[A] Carbon
[B] Hydrogen
[C] Nitrogen
[D] Oxygen​

Answers

Answer:

Nitrogen

Explanation:

Pure sugar is sucrose C12H22011

A metal ball has a mass of 6 kg and a volume of 42 cubic meters. What is its density

Answers

Answer:

0.143kg/m^3

Explanation:

density= mass / volume

Answer:

1/7 kg/cubic metres

Explanation:

Here, Density=mass /volume

=6/42

=1/7 kg/cubic metres.

chemistry A Gases unit test

Answers

Answer:

gas is composed to particles and has a mass.

a car accelerates from rest(zero speed) up to a spees of m/s to a speed of 30 m/s in 12 seconds. calculate the acceleration.​

Answers

acceleration = 2.5m/s^3

Select the atom that will attract the electron pair (:) more strongly (the atom with the greater electronegativity)


HELP PLEASE

Answers

24. F:H :) because Fluorine is the most electronegative

Calculate the normality of a solution made by diluting 12 g of H3PO4 with water to produce 250.0 mL of solution.

Answers

The  normality of a solution made by diluting 12 g of H3PO4 with water to produce 250.0 mL of solution is 1.47 eq/L.

The normality of a solution is;

N = Mass of solute in grams/volume of solution in litres × Equivalent weight

Mass of solute =  12 g

volume of solution =  250.0 mL or 0.25 L

Equivalent weight = Molar mass of H3PO4/n

n = Number of hydrogen ions in H3PO4

Equivalent weight = 98 g/mol/3 = 32.7

Substituting values;

N = 12/0.25 ×  32.7

N = 1.47 eq/L

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Please someone help WHATS the answer

Answers

the average atomic mass: 40.078 u
electron configuration is the long list underneath the name "calcium" on the element. it starts with 1s^2s^2

how many different types of nucleotides are found in nucleic acids

Answers

Answer: four different types!!!!

Explanation:

What were the first 5 planets that were observed? Why were those the only ones? Help pls!

Answers

Mercury Venus mars Jupiter Saturn

help Plz

Relate: What are three ways to organize data?

Explain: What should scientists do if their hypothesis is supported?

Consider: How does the process of inquiry usually begin?

Recognize: What happens if a hypothesis is not supported?

Answers

Answer:

When gathering data, whether qualitative or quantitative, we can use several tools, such as: surveys, focus groups, interviews, and questionnaires. To help organize data, we can use charts and graphs to help visualize what's going on, such as bar graphs, frequency charts, picture graphs, and line graphs.

If your hypothesis is supported, you might think of ways to refine your hypothesis and test those. Either way, the process of experimentation often leads to whole new questions to explore. The possibilities are infinite, and the search for knowledge is never-ending.

The scientific method is a process that helps answer questions based on observations, carefully planned experiments and deductive reasoning. All scientific inquiry begins with the identification of a problem or question to be answered based on observation.

If the initial hypothesis is not supported, you can go back to the drawing board and hypothesize a new answer to the question and a new way to test it. ... Either way, the process of experimentation often leads to whole new questions to explore. The possibilities are infinite, and the search for knowledge is never-ending.

brainlest

Explanation:

define suspension with example:​

Answers

Suspension in science refers to a mixture where a solid particle does not dissolve in a liquid solution. ... Examples of suspended solutions include salt water, sand in water, and muddy water.

What are the 4 properties of substances that contain Hydrogen Bonds?

Answers

Answer:

Increase in the melting point, boiling point, solubility, and viscosity of many compounds can be explained by the concept of hydrogen bonding

Explanation:

melting point- when does the solid melt to a liquid

boiling point - a temperature when a liquid will turn into a gas

solubility -solubility is ability of a substance, the solute, to form a solution with another substance

viscosity- Viscosity is a measure of a fluid's resistance to flow. It describes the internal friction of a moving fluid. ( basically how thick it is)

Answer:

Melting point, boiling point, solubillity and viscosity of many substances

Hope this helped you

Scientists theorize that the original point of matter from which our universe formed was smaller than a dime. This matter would also have:

a. had unimaginable mass
b. been incredibly dense
c. had unimaginable potential energy
d. all of the above​

Answers

ANSWER:

B. been incredibly dense? I'm not sure sorry

How does energy move through a wave? 3 evidence and reasons supporting you answer.

Answers

Sound, energy and radio travel in waves

What is a material through which waves travel?
space
vibrations
motion
medium

Answers

Electromagnetic waves travel through space

A clear liquid in an open container is allowed to evaporate. After three days, a solid is left in the container. Was the clear
liquid an element, a compound, or a mixture?

Answers

The liquid did not chemically bond after 3 days, therefor it is a mixture.

Hope this helps!

a) Identify which one of the particles is
I) an anion.

2) a cation ​

Answers

Answer: Particle F is an anion, and particle E is a cation

Explanation:

A particle is a cation if it has more protons  than  electrons.

A particle is an anion if it has more electrons than protons.

Hope it helps :) and let me know if you want me to elaborate.

. Identify molecules of elements;
O2, NH3, He

Answers

Elements can be made of one atom, like He, or be elemental molecules, such as hydrogen (H2), oxygen (O2), chlorine (Cl2), ozone (O3), and sulfur (S8). Atoms are not drawn to scale. Some elements are monatomic, meaning they are made of a single (mon-) atom (-atomic) in their molecular form...

How many cobalt atoms are in 2 moles of cobalt?

Answers

That means that one mole of cobalt weighs 58.9332 grams (58.9332 g/mol). Based on that information, to convert 2 moles of cobalt to grams, we multiply 2 moles of cobalt by 58.9332.

12.04428152 x [tex]10^{23}[/tex] cobalt atoms are in 2 moles of cobalt.

What are moles?

A mole is defined as 6.02214076 ×[tex]10^{23}[/tex]

of some chemical unit, be it atoms, molecules, ions, or others. The mole is a convenient unit to use because of the great number of atoms, molecules, or others in any substance.

One mole of cobalt is equal to 6.02214076 ×[tex]10^{23}[/tex] atoms.

2 moles of cobalt is equal to 6.02214076 × [tex]10^{23}[/tex]atoms x 2

12.04428152 x [tex]10^{23}[/tex]

Hence, 12.04428152 x [tex]10^{23}[/tex]cobalt atoms are in 2 moles of cobalt.

Learn more about moles here:

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Count the following atoms​
NEED ANSWER ASAP ​

Answers

Just use the subscripts
You have 4 hydrogens in one NH4 compound, and you have 3 NH4, so that gives you 12 H and 3 N.
You also have a coefficient of 2 in front of (NH4)3, so that means you would multiply 12 H atoms by 2 and 3 N by 2, giving you 24 hydrogen atoms and 6 nitrogen atoms.
You also have 1 Phosphorus atom, and 4 oxygen atoms, so now add all your individual atoms up:
24 hydrogen + 6 Nitrogen + 1 Phosphorus + 4 Oxygen = 35 atoms in total

how many ounces in a small can of crushed pineapple?

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer.....

Crushed Pineapple in 100% Pineapple Juice 8 oz can.

Hope it helps!

Brainliest pls!

Follow me! ;)

calculate the mass of butane needed to produce 64.1 g of carbon dioxide to three significant figures and appropriate units

Answers

Answer:

21.2 gm

Explanation:

calculate the mass of butane needed to produce 64.1 g of carbon dioxide to three significant figures and appropriate units

butane is the hydrocarbon C4H10  

in combustion, we react hydrocarbons with O2 to form CO2 and H2O

so

C4H10  + O2---------------->  CO2 + H2O

BALANCE

2C4H10 + 1302--------> 8CO2 + 10 H2O

the molar mass of CO2 is 12 + 16X2 = 44

64.1 gm of CO2 is

64.1/44 = 1.46 MOLES OF  CO2,

FOR EVERY 8 MOLES OF CO2 WE NEED 2 MOLES OF BUTANE  IT IS A

8:2 OR 4:1 RATIO.  THE MOLES OF C4H10 ARE 1/4 THE MOLES OF CO2

SO

THE MOLES OF C4H10 H10 ARE 1.46/4 =0.365 MOLES

THE MOLAR MASS OF BUTANE IS 58.12

0.365 MOLES OF C4H10 HAS A MASS OF 0.365 X 58.12 = 21.2 gm


Astronomers often scan the sky using devices called radio
telescopes. What can you conclude about these devices?

Answers

Answer:

A radio telescope is simply a telescope that is designed to receive radio waves from space.

radio telescopes helps to study naturally occurring radio light from stars, galaxies, black holes, and other astronomical objects. We can also use them to transmit and reflect radio light off of planetary bodies in our solar system.

Answer: stronomers often scan the sky using devices called radio telescopes. What can you conclude about these devices? ... They pick up the radio waves emitted by stars.

What do the electron configurations of the elements Mo and Pt have in common?

Answers

Answer:

All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons.

Explanation:

I had graduated cylinder with 50 mL of water. I added a rock to the graduated cylinder and the water level rose to 56 mL. What is the VOLUME of the rock?

Answers

Take 56 mL and subtract the original volume of 50 mL and that will give you the volume of the rock, which is 6mL.

Convert –26 degree Celsius temperature into kelvin .​

Answers

Just add 273 to turn it into Kelvin

Short definition of potential and kinetic energy in a roller coaster ride.

Answers

Potential energy is the energy an object has because of where it is in relation to other objects. Kinetic energy is what makes the object move. Many rides use the transfer of potential energy to kinetic energy to move along the track. Hope this helps!

what is the empirical formula of hydro carbon 7.7% by mass of hydrogen and 92.3% by mass of carbon​

Answers

Answer: A hydrocarbon contains 92.3% by mass of carbon and 7.7% by mass of hydrogen. The empirical formula of the compound will be oose answer:

CH CH5 CH CH3.

Explanation: :)

What is the word equation for Sodium Hypochlorite?

Answers

Answer:

Can u phrase differently?

Answer:

If you are looking for the formula, then it is NaOCl

Explanation:

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