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 1

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.


Related Questions

How many grams are equal to 0.11 mole of copper(I) chromate?

Answers

Mass of Copper(I) chromate( CuCrO₄) = 19.75 g

Further explanation

The mole is the number of particles contained in a substance

1 mol = 6.02.10²³

Moles can also be determined from the amount of substance mass and its molar mass

[tex]\tt \large{\boxed{\bold{mol=\dfrac{m(mass)}{MW(molecular~weight)}}}[/tex]

0.11 mole of Copper(I) chromate( CuCrO₄) ⇒ MW=179.54 g/mol, so mass :

[tex]\tt mass=mol\times MW\\\\mass=0.11\times 179.54\\\\mass=19.75~g[/tex]

Which part of the atom can be transferred from one atom to another to form
ions?
a. Protons
b. Neutrons
c. Valence Electron
d. Nucleus

Answers

Answer:

Explanation:  Valance Electron

A chemistry teacher is able to grade chemistry labs at a rate of 5 labs for every 3 minutes. They need to grade 165 labs how many hours will it take?​

Answers

Answer:

1.65hr

Explanation:

Given parameters:

Number of labs  = 5 labs

 Time taken  = 3 minutes

Unknown:

Time taken in hours to grade 165 labs  = ?

Solution:

Let us find the rate of the teacher;

  Rate  = [tex]\frac{number of labs}{time}[/tex]  

  Insert the parameters and solve;

   Rate  = [tex]\frac{5}{3}[/tex]   = 1.67labs/min

Now;

   Time to grade 165 labs  = [tex]\frac{number of labs}{rate}[/tex]  

   Time to grade 165 labs  = [tex]\frac{165}{1.67}[/tex]   = 98.8min

  Since;

               60min = 1hr

               98.8min  = [tex]\frac{98.8}{60}[/tex]   = 1.65hr

A state property X has a value 89.6 units. It undergoes the following changes, first increase by
3.6 units, then increase by another 18.7 units, then decrease by 12.2 units and finally attains a
value of 85.5 units The value for this series of change is A) 14.2 units
B) -4.1 units C) 108.3 units
D) uncertain​

Answers

Answer:

B) -4.1 units

Explanation:

According to this question, a state property X has a value 89.6 units. It undergoes the certain changes as follows:

- first increase by 3.6 units

- then increase by another 18.7 units

- then decrease by 12.2 units

- and finally attains a value of 85.5 units

This can be mathematically represented by 89.6 - {3.6 + 18.7 - 12.2 - x) = 85.5

To get x, we say;

89.6 + 3.6 = 93.2

93.2 + 18.7 = 111.9

111.9 - 12.2 = 99.7

99.7 - 85.5 = 14.2units.

The changes that occured is represented as follows:

= (3.6 + 18.7) - (12.2 + 14.2)

= 22.3 - 26.4

= -4.1 units

The equations are not balanced. Which equation would have the same coefficients in the same order as 2CO2 + 3H20 C2H6O + 3O2?

Answers

Answer:

Fe + H2SO4  Fe2(SO4)3 + H2

Explanation:

its the answer on my answer key

Answer:

C- Fe + H2SO4  Fe2(SO4)3 + H2

Explanation:

The person above me is right. I also just took the test.

Use the model to answer the question.
Which element symbol actually represents the model?

Plz answer

Answers

Answer:

B

Explanation:

Boron has 5 protons.

Dating of Rock Layers
Answer all 12 questions relating to the images below
English (US)
100

Answers

Answer:

I'm sorry, we need the image to answer  it.

Explanation:

5)
Experiments with gold foil indicated that atoms
A)
usually have a uniform distribution of positive charges
B)
usually have a uniform distribution of negative charges
C)
contain a positively charged, dense center
D)
contain a negatively charged, dense center

Answers

Answer:

c

Explanation:

I just learned all this in chemistry too lol

got 100 on the test last week so its good

Experiments with gold foil indicated that atoms contain a positively charged, dense center and the correct option is option C.

Experiments with gold foil, known as the Rutherford gold foil experiment, were conducted by Ernest Rutherford in 1911. In this experiment, he bombarded a thin gold foil with alpha particles.

Most of the alpha particles passed through the foil with little deflection, but some of them were deflected at large angles, and a small fraction even bounced back. This observation led Rutherford to conclude that the atom contains a positively charged, dense center called the nucleus, where most of its mass is concentrated. He proposed the nuclear model of the atom, which became a significant advancement in the understanding of atomic structure.

Thus, the ideal selection is option C.

Learn more about Gold foil experiment, here:

https://brainly.com/question/33537458

#SPJ6

After pollen grows on a tube down the style,___

Answers

Answer:

as soon as the pollen reaches the stigma after the pollen grain descends down the style when the pollen tube grows into the ovule when the seed germinates

Explanation:

If the momentum of a car is reduced by half, assuming mass did not change, what must also have been reduced by half?

Answers

Answer:

Velocity is halved

Explanation:

Momentum is contingent on mass and velocity. The quantity of motion in a body is called the momentum of the body.

  Momentum  = mass x velocity

Now, if mass does not change and momentum is reduced by half, it suggests that the velocity was reduced by half.

Velocity is directly related to momentum.

Given the following equation,
HCl aq) + NaOH aq
NaClaq) + H2O(l)
How many moles of H20 will be produced if there are 5 moles of HCI?​

Answers

Answer:

5 moles

Explanation:

Given data:

Number of moles of HCl = 5 mol

Number of moles of H₂O produced = ?

Solution:

Chemical equation:

HCl + NaOH     →   NaCl + H₂O

Now we will compare the moles of HCl with H₂O.

                          HCl            :           H₂O

                             1               :             1

                             5               :            5

5 moles of water will be produced.

Please Help!!!

Which of the following is not a good indication that a chemical change has occurred?
A. The formation of gases
B. A change in color
C. A scratched surface
D. The release heat or light​

Answers

Answer:

C.

Explanation:

List the elements that make up the compound copper sulfate

Answers

The elements that make up copper sulfate are copper and sulfate

Is vacuole a plant or animals cell

Answers

Answer:

plant

Explanation:

let me know if correct

calculate the ph of a solution whose(oh^-) is 4.583*10^-5 mole dm cube (pkw=14)​

Answers

pH of solution = 9.661

Further explanation

pH is the degree of acidity of a solution that depends on the concentration of H⁺ ions. The greater the value the more acidic the solution and the smaller the pH.

pH = - log [H⁺]

So that the two quantities between pH and [H⁺] are inversely proportional because they are associated with negative values.

pOH=-log[OH⁻]

[tex]\tt pOH=-log[4.583\times 10^{-5}]\\\\pOH=5-log~4.583=4.339[/tex]

pH+pOH=pKw

[tex]\tt pH=14-4.339\\\\pH=9.661[/tex]

how do i caculate velocity

Answers

Answer:

Velocity Equation in these calculations:

Final velocity (v) of an object equals initial velocity (u) of that object plus acceleration (a) of the object times the elapsed time (t) from u to v.

Explanation:

What will happen to the flow of blood in blood vessels (pulse) if heart beat rate increase

Answers

Answer:

"Low levels of the hormone epinephrine, also called adrenaline, cause blood vessels to relax and widen. High levels of this same hormone, along with the hormone norepinephrine, cause the blood vessels to narrow and the heart rate to rise, increasing blood pressure."

Explanation:

helpppppp i hate chemistry
I will give brainiest who helps me with the correct answer
I promise

5. Name the compound which contain Strontium, Fluorine, and Oxygen.

Options:

Strontium fluorate
Strontium fluoride
Strontium chlorate
Strontium fluorine

Answers

Answer:

The first option: Strontium Fluorate.

Explanation:

because Fluorine and oxygen combines to make fluorate, Strontium stays the same.

p.s: i need help in geo and there's an exam tomorrow.

Express in scientific notation. Choose the answer with the proper number of significant figures. 9x10^9/4.5x10^1​

Answers

Answer:

Your answer should be 2.4 x 10^9.  please hit the crown

Explanation:

wich if the following statements best describes why the mass of a bowling ball would not change if it were transported from earth to the moon?


gravity is constant forge

the bowling ball will adapt to the changes in gravity

matter is resistant and changes gravity

the amount of mattet in the bowling ball remains the same

Answers

Answer:

the amount of matter in the bowling ball remains the same

Explanation:

The reason why the mass of the bowling ball on earth and moon remains the same is that matter in the bowling ball remains the same.

Mass of any substance is the amount of matter it contains.

Since there is no loss in matter, the mass of the bowling ball anywhere in the universe will be the same. Only the weight changes due to differences in gravity.

If 150 G of war started burning 300 G of where as was left behind how many grams of CO2 gas is released

Answers

Answer:

geruow0irghvn3p0unhie0ghik

Explanation:

Which of the following sets of forces acting on an object will result in the object moving?
5 Newtons Up and 5 Newtons Down
31 Newtons Left and 32 Newtons Right
0 Newtons Up and 0 Newtons Down
9 Newtons Left and 9 Newtons Right

Answers

Answer:

31 N left and 32 N right because

Explanation:

It’s the only one movement because when you subtract them there’s still 1 left

1. Why is soil erosion relatively less in dense forests as compared to barren, open fields?

Answers

Because the deep roots of big trees hold the soil and don't let it slip away simply by rain or wind.

Answer:

the roots of the trees keep the soil in place opposed to a barren landscape that has little to no plants to keep the soil in place

hope this helps (╹ڡ╹ )

Which of these is an example of chemical separation of a substance?
-Distillation
-Magnetism
-Paper Chromatography
-Bond breaking

Answers

Answer:

Bond broking

Explanation:

Bond broking.

Niels Bohr’s model of the atom helped to explain

Answers

Answer:

a theory for the hydrogen atom based on quantum theory that energy is transferred only in certain well defined quantities. Electrons should move around the nucleus but only in prescribed orbits.

Explanation:

Please help me how do i solve this

Answers

Answer:120

Explanation:2gfdxxfgngfnf

Which of the following best describes a hypothesis?
A. An explanation that is supported by scientific data
B. A proven explanation for experimental results
c. A possible answer to a scientific question
D. A question about the natural world
please help i will give brainliest

Answers

It’s C because hypothesis is what u think would happen in the experiment
It is most definitely C, A hypothesis is a prediction before an experiment occurs

Which of the following subatomic particles are found surrounding the nucleus and have a negative charge?

F negatrons

G neutrons

H protons

J electrons

Answers

Answer:

J electrons

Explanation:

Electrons are the negatively charged subatomic particles that surrounds the nucleus of an atom.

Electrons occupy the bulk volume of an atom. These particle was discovered by J.J ThomsonThey found orbiting the extra-nuclear space of every atom. The nucleus is made up of protons and neutrons.

What is the K-T boundary?

Answers

Answer:

Definition

The Cretaceous/Tertiary boundary (KT), also often called the Cretaceous/Paleogene (K/Pg) boundary, marks the contact between the Mesozoic and Cenozoic eras ∼ 65 Ma ago. The KT boundary is characterized by the last major mass extinction in Earth history that saw the demise of the non-avian dinosaurs along with 50% to 60% of the Earth fauna and flora.

The answer above sums it up

The density of lead is 11.4g/cm3. What volume, in ft3, would be occupied by 10.0 g of lead?

Answers

Answer:

The volume is 3.09 ft^3.

Explanation:

The formula for volume is mass divided by density. 10.0 g / 11.4 g/cm^3 = 0.87719. Converted to cubis foot is 3.09 ft^3. I hope this helps you.

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