Chemistry High School

(02.01 MC)
Observe the image. What observable property can be used to separate a mixture of sand and rice using this tool? (2 points)
Public Domain
Oa
Color
Ob
Magnetic attraction
oc
Particle size
Od
Texture
8.69 Mostly cl

(02.01 MC)Observe The Image. What Observable Property Can Be Used To Separate A Mixture Of Sand And Rice

Answers

Answer 1

Answer:

C. Particle size

Explanation:

The sand, which has smaller particles, will go through the sieve, while the rice (with a larger particle size) will not

Related Questions

when the orbitals or energy levels of an atom are full, it is considered to be stable. which atom in the ground state has a stable electron configuration?

Answers

Answer:

Noble gases, atoms which have complete filled outer orbits.

Explanation:

SInce, you have given no options elements like Neon, Helium,etc

Noble elements are the atoms which have stable electronic configuration in the ground state.

What is electronic configuration?

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state  and hence are said to be stable.

Learn more about electronic configuration,here:

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which part of the chemical structure differentiates one amino acid from another?

Answers

Answer:

Every amino acid also has another atom or group of atoms bonded to the central atom known as the R group. This R group, or side chain, gives each amino acid proteins specific characteristics, including size, polarity, and pH.

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Answers

Answer:

Carbon Monoxide- D)

Nitrogen Oxides- A)

Particulate matter- C)

Sulfur Oxides- B)

Explanation:

Answer is 100% verified

Count on me, I'm a Chemistry Guru

Words are on the right please help!

Answers

Answer:

1.Frequency

2.Amplitude

3.Wavelength

4.Medium

5.Back and Forth

6.Up and Down

Explanation:

CORRECT ME IF I'm wrong

yes it’s right!!!!!!!!!

Land can also be called:
A) Money and/or profit
B) Natural Resources
C) Human Resources

Answers

I’m pretty sure the answer would not be C) Human Resources.

In which range of electronegativity differences would polar covalent bonds occur?(1 point)
−1.0 to 0
0 to 1.0
0 to 0.5
0.5 to 1

This image shows electronegativities of elements on the periodic table. Based on this information, which element is most likely to form a strong ionic bond and take on electrons? (1 point)
fluorine (F)
cesium (Cs)
hydrogen (H)
helium (He)

Which option contains an example of a polyatomic ion?(1 point)
NH4
KNO3
CaCl2
MgCl

Which statement best explains the difference between polar and nonpolar covalent bonds?(1 point)
Polar covalent bonds give/take electrons, while nonpolar covalent bonds share electrons.
Polar covalent bonds share electrons, while nonpolar covalent bonds give/take electrons.
Polar covalent bonds share electrons unequally, while nonpolar covalent bonds share electrons equally.
Polar covalent bonds share electrons equally, while nonpolar covalent bonds share electrons unequally

Which statement describes the bonds in iron sulfate, FeSO4? (1 point)
Fe and S have an ionic bond, and S and O have ionic bonds, too.
Fe and S have a covalent bond, while S and O have ionic bonds.
Fe and S have an ionic bond, while S and O have covalent bonds..
Fe and S have a covalent bond, and S and O have covalent bonds, too.

Answers

Answer: 1. (0.5 to 1)

              2. (Fluorine)

              3. (KNO3

              4. (Polar covalent bonds share electrons unequally, while nonpolar covalent bonds share electrons equally.)

              5. (Fe and S have a covalent bond, and S and O have covalent bonds, too.)

Explanation:

Ye, have great day.

The periodic table is an arrangement of elements according to their periodic properties.

Polar covalent bonds are those compounds in which unsymmetrical electron distribution in bonds leads to polarity in the molecule. Examples of such compounds include; HCl, CHCl3, etc. A polar covalent bond occurs when the electronegativity differences between atoms lies within the range of 0.5 to 1.

Since electronegativity increases across the period and we also know that highly electropositive metals(having very low electronegativity) and highly electronegative nonmetals(having high electronegativity)  form a strong ionic bond, it follows that fluorine (F) and cesium (Cs) will form a strong ionic bond.

A poly atomic ion is an ion that contains more than one atom. Given the options listed NH4^+ is an example of a polyatomic ion.

The difference between polar and nonpolar covalent bonds is that polar covalent bonds share electrons unequally, while nonpolar covalent bonds share electrons equally.

In FeSO4, Fe and S have an ionic bond, while S and O have covalent bonds.

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calculate mass in grams of 5.09×10^20 atoms of copper. (Atomic Mass 63.5)

Answers

Explanation:

here is the answer attached

Suppose a high-flying jumbo jet with a mass of 45,000 kg cruises at constant velocity when the thrust of its engine is a constant 80,000 N. What is the acceleration of the jet?

Answers

Answer:

1.78 m/s²

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]a = \frac{f}{m} \\ [/tex]

f is the force

m is the mass

From the question we have

[tex]a = \frac{80000}{45000} = \frac{80}{45} \\ = 1.77777...[/tex]

We have the final answer as

1.78 m/s²

Hope this helps you

how many molecules of water, h2o, are present in 75.0 g of h2o?

Answers

Answer:

150 molecules of oxygen

Explanation:

The formula of alkanes contain 3 5 7 and 9 carbon atoms

Answers

Explanation:

In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings), is an acyclic saturated hydrocarbon. In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon–carbon bonds are single.

What kind of feature results from the convergence of two oceanic plates?

Answers

Answer: When a convergent boundary occurs between two oceanic plates, one of those plates will subduct beneath the other. Normally the older plate will subduct because of its higher density. The subducting plate is heated as it is forced deeper into the mantle, and at a depth of about 100 miles (150 km) the plate begins to melt.

Explanation:

The mass number is equal to the number of blank in the nucleus of the atom

Answers

Answer:

c

Explanation:

Earth science
Help plz!
Which piece of information could a person obtain from a contour map?
1.the mineral composition of a mountain
2. the elevation of a mountain 3.the speed of water flow in a river
4.the amount of water in a river

Answers

Answer:

2 Elevation of a mountain.

Explanation:

Contours make it possible to show the height and shape of mountains, the depths of the ocean bottom, and the steepness of slopes.

(Brainiest and Thanks all Appreciated)

Which of the following are directly proportional? *
volume and temperature
pressure and volume
pressure and temperature

Answers

Volume and temperature.

on an energy diagram, where is a stable equilibrium point?

Answers

Answer:

1.2

Explanation:

2. DEFINE CHEMICAL BOND IN YOUR OWN WORDS.

Answers

Answer:

chemical bond are bonds that are strong lasing between chemicals and irons and morecles

AJUTOR VA ROG AM TEST SI MAI AM 10 MINUTE AM NEVOIE DE SUBPUNCTUL C SI D

Answers

Explanation:

desk I have a lot of work and I will send it in the one

pls help ——————————
—————-

Answers

Answer:

X has 9 Electrons, 9 Protons and 10 Neutrons

X is Fluorine

Explanation:

19 in X is Nucleon number

So, if you minus 19 by 9 down there (which is proton number) you'll get 10 (Neutron number).

Now, Proton = Electron. That's why Electron is 9 too. I figured that X is Fluorine bcuz it has 9 Electrons. If you venture around in the periodic table, fluorine is the ninth element innit.

hope this helps ya ＼(^o^)／

1. Cooking pots are provided with wooden or plastic handles .Why?

Answers

Answer:

So the heat doesn't transfer to the handle and heat it up causing you to burn yourself in cooking process

Explanation:

Hope this helps! Happy Halloween

Cooking pots are provided with wooden or plastic handles because wood or plastic handles are bad conductors of heat. Hence, the heat from the hot appliances does not flow to our hands with the result that we can handle them without any difficulty.

why is it necessary to run tlc in a closed container?

Answers

Answer:

Explanation:

It is necessary to run TLC in a closed container and have the interior saturated with the solvent vapor to ensure maximum resolution between components and to prevent solvent evaporating off. If the solvent evaporates off, the Rf value would be lower than the expected value.

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Answers

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what type of carbohydrates provide the body with a sustained release of energy?

Answers

Answer:

Fiber-rich, complex carbs

Complex carbs with fiber take much longer to digest than simple carbs. This helps to maintain stable blood sugar levels because sugar enters the bloodstream gradually . Complex carbohydrates provide sustained energy and help you feel fuller for longer because they are digested more slowly.

Which form of carbohydrates can your body use for energy?Glucose, also known as blood sugar, is the primary energy source for your body's cells, tissues, and organs. Glucose can be used right away or stored for later use in the liver and muscles.Carbohydrates are the body's preferred fuel source because they can be quickly converted to glucose. A light carbohydrate snack right before exercise is a good idea for quick energy. Eat protein with carbs to slow the rate at which your body absorbs them for longer-lasting energy.Fat is the most concentrated source of energy in the body, providing more than twice the potential energy of carbohydrate or protein (9 calories per gram versus 4 calories each per gram).

To learn more about :  Glucose

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Explain how heat gets transferred?

Answers

Heat can travel from one place to another in three ways: Conduction, Convection and Radiation.

What reasons did the Pilgrims give for creating the Mayflower Compact?

to create a colony, establish a new church, and provide a long life for their children

to organize a new nation and create order, and for financial gain

to organize themselves, guarantee a long life for the colony, and achieve their goals in setting up the colony
“[To] Combine ourselves together into a Civil Body Politic, for our better ordering and preservation and furtherance of the ends aforesaid”

—Mayflower Compact

Answers

Answer:

To organize a new nation and create order and for financial gain.

Answer:

C the person above is wrong its

Explanation:

to organize themselves, guarantee a long life for the colony, and achieve their goals in setting up the colony

Explanation:

A molecule is made up of more than one element ?

Answers

Answer:

Yes it is

Explanation:

How else do you think nitrogen or oxygen is made?

Which of the following describes a chemical property of oxygen?
Oxygen is a gas at room temperature.
An oxygen molecule has an atomic mass of 32 a m u.

The density of oxygen is 0.00133 grams per centimeter cubed .

Oxygen reacts with iron to form rust.

Answers

Answer:

Oxygen Reacts with Iron to Form Rust is the Correct Answer

lol can some have helo me out its easy
1, 2 and 3

Answers

Answer:

1. A

2. C

3. C

Explanation:

1. there are single cell organisms

2. all others are abiotic factors

3. individual is just one, population is one species, community is all populations, ecosystem includes abiotic and biotic factors, biome is a large geographical area.

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Describe the structure of solid potassium iodide.

Answers

Answer:

Potassium iodide is a metal-halide salt that has an ionic connection between the potassium cation (K+) and the iodide anion (I–). It is colorless to white and appears as cubical crystals, powder, or white granules. It has a salty, astringent flavor. This chemical is made from iodine and potassium hydroxide.

Select the answer that completes each statement.

The
founded the Virginia colony.

The
government took over the Virginia colony because too many colonists had died.


and
worked on the tobacco plantations.

The
was the first elective governing body in a British colony.

Answers

Answer:

1 colonists

2 England

3 slaves

4 the House of Burgesses

Answer:

:)

Explanation:

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Answers

Answer:

A

Explanation:

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