Can someone help mee pleaseeeee please!

Can Someone Help Mee Pleaseeeee Please!

Answers

Answer 1

Answer:

im sorry dude, just trying to complete my daily challenge

Explanation:


Related Questions

Write the net ionic equation for the following reaction:

AgC2H3O2(aq) + CaCl2(aq) →

Answers

Answer:

2Ag^+(aq) + 2Cl^-(aq) --------> 2AgCl(s)

Explanation:

The net ionic equation reflects the main reaction that occurred in the system. It tells you the most important reaction that took place.

If we first put down the balanced molecular equation for the reaction, we have;

CaCl2(aq) + 2 AgC2H3O2(aq) ---------> 2 AgCl(s) + Ca(C2H3O2)2 (aq)

The net ionic equation is;

2Ag^+(aq) + 2Cl^-(aq) --------> 2AgCl(s)

describe the theory of plate tectonics

Answers

Answer:

The theory of plate tectonics states that the Earth's solid outer crust, the lithosphere, is separated into plates that move over the asthenosphere, the molten upper portion of the mantle. Oceanic and continental plates come together, spread apart, and interact at boundaries all over the planet.

Explanation:

From Google

Rust forms when iron metal reacts with oxygen gas. Which chemical reaction best
supports the law of conservation of mass?
A. Fe + O2 --> Fe2O3
B. 2Fe + O2 --> 2Fe2O3
C. 3Fe + 202 --> Fe2O3
D. 4Fe + 302 --> 2Fe2O3

Answers

Answer:

D. 4Fe + 302 --> 2Fe2O3

Explanation:

The equation that bests supports the law of conservation of mass is the choice D;

       4Fe  +   3O₂  →   2Fe₂O₃

Based on the law of conservation of mass, the number of atoms on both sides of the expression must be the same. Only the fourth choice proves this law;

           4Fe  +   3O₂  →   2Fe₂O₃

                                                Number of atoms

    Elements              Left hand side                            Right hand side

        Fe                                4                                                     4

        O                                 6                                                      6

We can see that both side of the expression have the same number of atoms and the equation is balanced.  

The speed of a mechanical wave through a medium depends on the type of medium. It also depends on the type of mechanical wave. Which statement is true?

Answers

The statements are;

A) All waves travel at the same speed if no medium is present.

B) Electromagnetic waves require a medium, but mechanical waves do not.

C) All waves travel at the same speed through any medium.

D) Mechanical waves require a medium, but electromagnetic waves do not.

Answer:

Statement D is true.

Mechanical waves require a medium, but electromagnetic waves do not.

Explanation:

The two types of waves are;

Mechanical waves and Electromagnetic waves.

Mechanical waves require a medium, such as an atmosphere or water, to enable it transport its energy. For example sound waves occur when you clap and thereby distort the air around.

Whereas, Electromagnetic waves do not require a medium to enable it transport its energy. A good example would be light. Normally, Electromagnetic waves are usually formed when the electric field and the magnetic field are perpendicular to each other.

So electromagnetic waves can transmit without a medium because electric and magnetic fields can exist independently without a medium.

Write TRUE if the statement is correct and FALSE if the statement is wrong.

___1.Heat depends only on how fast molecules vibrate. ___2.Joule is a unit of heat energy
___3.We measure temperature with a thermometer
___4.The faster molecules vibrate; the more heat they give off.
___5.Temperature measures the average kinetic energy per molecule.

Answers

Answer:

true is the answer of first

The image shows particles of salt dissolved in water.


How will the arrangement of salt particles most likely change?

Salt particles will move toward the left through diffusion.
Salt particles will move toward the left through active transport.
Salt particles will move toward the right through diffusion.
Salt particles will move toward the right through active transport.

Answers

Answer:

Salt particles will diffuse and towards where it is less that is left !!

so your answer is A !! left through diffusion !!

Explanation:

Answer:

Salt particles will move toward the left through diffusion

Explanation:

I just took the quiz.

10. Balance with coefficients.
Zn + H3PO4 > Zn3(PO4)2+H2

Answers

Answer: Zinc + Phosphoric Acid = Zinc Phosphate + Dihydrogen

Explanation:

HELPPPPPPPPPP! I WILL GIVE FREE BRAINLIST!

Answers

Answer:

21%

Explanation:

nitrogen takes up more than half so it can't be the 2 biggest answers cause both are more than 50 and the smallest answer would have to be for the little sliver of the pie chart

Answer: 21%

Explanation:

Hydrogen bond is not formed by 1) oxygen 2) nitrogen 3) chlorine
PLEASE HELP!!!

Answers

Answer:

Input work is the work done on a machine as the input force acts through the input distance. This is in contrast to output work which is a force that is applied by the body or system to something else. Output work is the work done by a machine as the output force acts through the output distance.Jan 15, 2020 bahsgsh bvshgs d hg

Mrs. Franklin loves teaching science and thinks about it all the time. While walking one day, she steps on a warm, fresh piece of used gum. The gum flattens and sticks to her shoe. When she lifts her foot, she sees long strings of gum between her shoe and the sidewalk. She thinks, "What a great demonstration of the properties of metals!"


What properties of metals would Mrs. Franklin most likely teach about with this demonstration?


conductivity and luster

ductility and malleability

malleability and reactivity

conductivity and ductility

Answers

Answer:

Ductility and Malleability

Explanation:

Pls mark my answer as brainliest

Answer:

the correct answer is Ductility and Malleability....(B)....

Explanation:

I took the test, hope this helps. also the person above me is correct

What do ionic bonds contain?

Answers

Answer:

Valence Electrons

Explanation:

Answer:

Ionic bonds contain electrovalent bond

Explanation:

Ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.

How many atoms are there in one mole of CH3OH​

Answers

Answer: 1.44 x 10^25 atoms in 128 grams of CH3OH.

Explanation: To obtain number of atoms, multiply number of moles by the number of molecules per mole.

Explanation:

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When water evaporates, ...
kinetic energy decreases.
thermal energy is released.
heat energy is absorbed
Potential energy decreases

Answers

heat energy is absorbed?...

Whats Potassium bond type? Please help!

Answers

Answer:

A metallic bond.

Explanation:

Potassium is a metal (alkali metal), hence its bonds are metallic bonds.

Hope this helped!

Answer:

metallic bond............

What volume in liters of chlorine gas would be fully required to react to 125 g of Nal

Answers

Volume of Cl₂ = 9.34 L

Further explanation

Reaction

2NaI + Cl₂ ⇒ 2NaCl + I₂

mol NaI (MW=149,89 g/mol) :

[tex]\tt \dfrac{125}{149,89}=0.834[/tex]

mol Cl₂ : mol NaI = 1 : 2

mol Cl₂ :

[tex]\tt \dfrac{1}{2}\times 0.834=0.417[/tex]

Assumptions at STP(1 mol=22.4 L) :

[tex]\tt 0.417\times 22.4~L=9.34~L[/tex]

What product(s) are formed during this chemical reaction? (There will be two correct answers)

Ca + Na3PO3 rightwards arrow


CaNaPO3


Ca3(PO4)2


Ca2(PO4)3


Ca(PO3)2


Na


Na3


CaNa


No Reaction

Answers

Answer:

Ca3(PO4)2 and Na

Explanation:

The reaction equation is;

3Ca + 2Na3PO3 -------> Ca3(PO3)2 + 6Na

We must remember that calcium is above sodium in the electrochemical series. This implies that calcium can displace sodium from its solution. Calcium has a reduction potential of -2.87 V while sodium has a reduction potential of -2.71 V. The ion with the more negative reduction potential can easily displace the other in aqueous solution.

This explains why the reaction above is possible.

What are the elements in sodium phosphate?

Answers

Answer:

sodium and phosphorus

Explanation:

sodium combines with phosphorus to produce sodium phosphate

Explanation:

I hope understand this

how many sig figs are in 1.008 and 120.9??

Answers

Answer:

there are 4 sig figs in 120.9 and there are 4 sig figs in 1.008

Explanation:

There are 4 figs in both!!

If 150 G of wood started Burning, and 30 G of wood ash was left behind, how many grams of CO2 to gas was released

Answers

Answer:

120G

Explanation:

From the combustion process, about 120G of carbon dioxide would be released into the atmosphere.

For the chemical reaction to obey the law of conservation of matter, if only ash and carbon dioxide are the product, then the sum of the mass of the product and that of the reactants must be the same.

   In a chemical reaction, matter is not created nor destroyed, but they are simply changed from one form to another.

   Mass of wood burning  = mass of ash + mass of CO₂

              150G  = 30G + mass of CO₂

         mass of CO₂ = 150G  - 30G  = 120G

I LEARNED THAT PLANT INDICATOR CAN

Answers

Can what??? Plant indicates what?!?

why is an atom regarded as electrically unstable​

Answers

Answer: An atom can be considered unstable in one of two ways. If it picks up or loses an electron, it becomes electrically charged and highly reactive. Such electrically charged atoms are known as ions. Instability can also occur in the nucleus when the number of protons and neutrons is unbalanced.

Explanation:

A beaker filled with 100 ml of water has an initial temperature of 23 degrees Celsius. After the beaker has been heated, the final temperature is 100 degrees celsius. The final volume of the water is 85.32 ml. After reaching the final temperature, there are bubbles throughout the water. What is this an example of?

Answers

Answer:  The temperature of a beaker of water is 318.2 K.

Explanation:

Multiplying the temperature in Celsius by tells us how many Fahrenheit degrees above the freezing .

The most abundant element in the universe
(1) Hydrogen
(2) Oxygen
(3) Nitrogen
(4) Helium

Answers

hydrogen is the answer

Answer:

Hydrogen

Explanation:

Hydrogen is universe's most simple element, which is most likely why it is the most abundant.

im not sure for this one please help me​

Answers

Answer:

Fairly certain it is the tension of the string

Answer:It would be C

When naming acids the prefix hydro- is used when the name of the acid anion ends in___

Answers

Answer:

hydrochloric acid

Explanation:

These anions usually have the ending “-ide.” As acids, these compounds are named starting with the prefix “hydro-,” then adding the first syllable of the anion, then the suffix “-ic.” For example, HCl, which is hydrogen and chlorine, is called hydrochloric acid. More complex acids have oxygen in the compound.

Considering the passage about crude oil, why is distillation the main process for separating the contents of crude oil? Crude oil is a homogeneous mixture. Crude oil is a heterogeneous mixture A major byproduct of crude oil is gasoline.

Answers

Answer:

Crude oil is a homogeneous mixture.

Explanation:

I got it right.

Answer: Crude oil is a homogeneous mixture.

Explanation: im doin edge

why burning of wood and cutting it into small pieces are considered as two different types
of changes.in sort type
.
اور بس انتي شلال​

Answers

Answer:

burning causes pollution cutting results furniture

Explanation:

are u a nepali ?

Answer:

burning of wood, new substances are formed and hence it is a chemical change. While cutting the wood into small pieces no new substance is formed, thus it is a physical change. Hence, burning of wood and cutting it into small pieces are considered as two different types of changes.

Which of the following is a scientific question?
O A. Who made the first plant-hardiness zone map?
O B. Which plants are sold by my local nursery?
O c. Which kind of flowers should I plant in my garden?
O D. How does gravity affect the growth of plant roots?

Answers

The answer would be D.

Hope this helps!! (:

Is the following picture an example of a chemical change or a physical change?

SOMEONE PLEASE HELP ILL GIVE brainly

A physical change, because the atoms are rearranging to form new molecules.

A physical change, because the molecules are staying the same.

A chemical change, because the atoms are rearranging to form new molecules.

A chemical change, because the molecules are staying the same.

Answers

Boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O). If the bubbles were caused by the decomposition of a molecule into a gas (such as H2O →H2 and O2), then boiling would be a chemical change

Therefore, your answer would be:

A physical change, because the molecules are staying the same.

Answer:

A physical change because the molec are staying the same

Explanation:

when water is evaporated it still is water just not in liquid form

if we all have atoms and atoms technically never touch then we've never touched anything in our lives. is this true?

Answers

Answer:

We are all made out of atoms, yes this is true. And atoms never touch each other. So no sir, i did not punch that little boy.

Explanation:

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A vacuoles function is somewhat similar to the function of what human organ? Evaluate the function at the given valuef(x) = 4.753(0.9421)^xx = 5 The graph shows the membership of a student group: x represents the number of years since the group was formed and y represents the number of members.The equation is y = 14x + 10.Which is true regarding the slope?Membership grows by 14 each year.The group was formed with 14 members.Membership is recorded every 14 years. plz help me with this plz Lucy got 75% of the questions correct on her math test. If there were 24 questions, how many did Lucy get correct? What is the biggest challenge facing teens today? How is this similar or different from the problems facing teens in The Outsiders? Be sure to include details from the novel. A line has a slope of 3/2 and has a x-intercept of 2 . What is the y-intercept of the line? Given p(x)=2x^3-3x-5 what is the value of p (-2) consider there is a square cyclone and students are not in a position to come to the classroom.In this situation keeping in mind,plan at least activities that can be conducted for teaching learning of your subject The total cost in dollars for Larry to have his birthday party at a local Trampoline Park can be found using the function t = 6.95p + 29.95, where p is the number of people who will attend the party. If Larry only has $70 to spend on his party, which of the following could represent the domain of the function? Which statement best describes the effect ofsound devices on the stanza? Using a third-party package of your choice, write a program that reads the contents of a csv file and saves it to an Excel file. The program should take two arguments. The name of the input file and the name of the output file. find the mass of a car that is travelling at a velocity of 60m/a north. The car had 5,040,000 j of kinetic energy How do you know a reflexive verb when you see it? Explain three causes of repetitive stress injuries (RSI) Which of the following is NOT a threat to living ocean organisms?A. evaporationB. oil spillsC. pollutionD. over fishing Determine if the expression 9y5 10y3 is a polynomial or not. If it is a polynomial,state the type and degree of the polynomial. Will mark brainliest!Please answer both questions will give extra points!!!Please answer them in complete sentences same with the picture above :)Question 1) Where did you get your chromosomes from? How many do you have ? What effect did the Diaspora have on the religion of Judaism? 0.2x+2.7x-8.1=6.9+1.1xHelp