30 points!!!!

2K + 2H2O → 2KOH + H2

This reaction shows which detail about potassium and hydrogen?
Hydrogen is more reactive than potassium.
Potassium and hydrogen form ionic bonds.
Potassium is more reactive than hydrogen.
Potassium and hydrogen form covalent bonds

Answers

Answer 1

Answer:

2K + 2H2O → 2KOH + H2

So Hydrogen is more reactive than pottasium .

According to law of conservation of matter, 2 moles of potassium react with water to produce 1 mole of hydrogen gas.

So, 2 moles of potassium produce 1 mole of hydrogen gas.
Answer 2

Answer:

A

Explanation:

Hydrogen is more reactive than potassium.


Related Questions

The equations ? It’s for a chemistry class, and he said we need to explain and write down the math problems?

Answers

Answer:

I think this is because math and chemistry go together and the math problems are science related.

Explanation:

A 38-kilogram child roller skates on a circular track with a radius of 24 m. Her velocity is 6.0 m/s. What centripetal force does she experience?

580 N
0.16 N
57 N
0.38 N

Answers

ANSWER: 57 N

took that already

what is meaning of coordination bond?​

Answers

Answer:

Coordinate-bond meaning

A type of covalent bond in which both the shared electrons are contributed by one of the two atoms. ... The definition of a coordinate bond is a chemical bond between two atoms when one of the atoms shares a pair of electrons.

Explanation:

Explanation:

is a covalent bond in the sharing of electron pair equally between two atoms in which each atom contribute an electron.

it is form when atomic orbitals of atoms each containing an unpaired electron overlap to share the pair of electrons.

LAST ATTEMPT! Covalent compound naming !

Answers

Answer:sad

Explanation:

haaaaan   not

is H2O polar or non polar?

Answers

Answer:

Explanation:

H2O is a polar molecule

Answer:

polar covalent molecule

Explanation:

the unequal sharing of electrons between the atoms and the unsymmetrical shape of the molecule means that water has two pole a positive and a negative.

Need Help ASAPPPP!!!!

Answers

Answer: For number 8. I think only one if not i'm so sorry also you would need 143. 0914

Explanation:

Answer:

Hello! :p

6.022 × 10^{23} atoms of copper. 143.09 g/mol

I hope this helps! Thank you so much! :)

What law of motion corresponds with this statement?

"A rifle kicks."

first law
third law
second law

Answers

Answer:

3rd  lawl

Explanation:

a rifle kick is when you fire a projectile and you feel a force pushing against your hand. Rifles normally have heavier projectiles so there is more force pushing back against you. example, if you were sitting on a spinny chair with wheeles and your friend is sitting on another, and you push each other while on the chair, you will both go backward, but the lighter person will go back more. for every action, there is an equal and opposite reaction

that is the third law, also said as: "When one body exerts a force on a second body, the second body simultaneously exerts a force equal in magnitude and opposite in direction on the first body."

What is epoxy?
....................

Answers

A clear chemical compound.

Answer:

1. any class of adhesives, plastics, or other materials that are polymers of epoxies.

2. something like glue or resin

Explanation:

that's the dictionary definition of epoxy.

I want a pharmacist technician to help me with a question please

Answers

I'm a pharmacy dispenser which is the same thing. what's your question?

What is the empirical formula for a compound that is comprised of 54.0% sodium, 8.50% boron, and 37.5% oxygen by mass

Answers

Answer:  

Sodium metaborate: sodium+boron+oxygen= NaBO 2.

The formula can be written also as Na 2O·B

Explanation:

(QUICK)
What is the percent yield if the actual yield is 1.5g and the theoretical yield is 4.5g?

Answers

Answer:

33.3% (depending on how many significant figures you need)

Explanation:

Actual yield divided by theoretical yield times 100%

what is involved fashion of male and female gametes to form a zygote which develops into an embryo ​

Answers

This process is known as fertilisation. Gametes contain half the number of chromosomes of all other cells in the organism. This means they are haploid . When the male and female gametes combine in fertilisation they create an embryo with the full complement of chromosomes (diploid).

a sample of glucose contains 1.250x10^21 carbon atoms, how many atoms of hydrogen does it contain?

Answers

Answer:

Hydrogen = 2.5 * 10^21

Explanation:

Chemical Formula Glucose: C₆H₁₂O₆

One of the ways you could do  this is to notice that for every carbon atom there are two Hydrogen atoms. You can state this more formally by using the formula to set up a ratio: 12/6 = hydrogen to Carbon

So if there are 1.250 * 10^21 Carbon atoms in the Glucose sample, then there will be twice as many hydrogen atoms.

H = 2 * 1.25 * 10^21 = 2.5 * 10^21 atoms

You could do this more formally by setting up a proportion.

6 Carbon / 12 Hydrogen = 1.25*10^21 /  x         Cross Multiply

6*x = 12 * 1.25*10^21                                           Combine the right

6x = 1.5 * 10^22                                                  Divide by 6

x = 2.5 * 10^21

Is the formation of sulfur tetrafluoride monoxide endothermic or exothermic?

Answers

endothermic means it absorbs energy while exothermic means it releases energy. remember this.

[H+]=1×10−13 M pH=

what is this answeer

Answers

Answer:

Take the -logarithm of the concentration of hydrogen ions that are in the solution:

pH=−log(1×10−8M)=8.❤

1. Before starting, make a prediction: If substances B and C are both in the gas phase and are at the same energy level, which of the two substances will need to have more energy transferred out in order to change to the liquid phase? Substance B or substance C? Explain your answer.

Answers

Answer:

Substance C

Explanation:

Substance C would be the answer because Substance C has a lower attraction level. Because of this, it takes more energy to take out of in order to become a liquid.

Describe the factors that can be used to predict whether or not a nuclide is stable.​

Answers

The principal factor for determining whether a nucleus is stable is the neutron to proton ratio. Elements with Z < 20 are lighter and these elements' nuclei and have a ratio of 1:1 and prefer to have the same amount of protons and neutrons.
The principal factor for determining whether a nucleus is stable is the neutron to proton ratio. Elements with (Z<20) are lighter and these elements' nuclei and have a ratio of 1:1 and prefer to have the same amount of protons and neutrons.


Facts about neutron:

James Chadwick discovered the neutron in 1932. He discovered it using this curious device which he made from pieces found in the laboratory.


Neutrons are very small indeed.



There are stars made of neutrons.


Neutrons are slightly heavier than protons.

Neutrons are made of three quarks.


What charge is a neutron?: Neutrons have no charge. Since opposite charges attract, protons and electrons attract each

1.
How many moles of NaCl are in 1.5L of 0.25 M solution?

Answers

Answer:

0.375 moles

Explanation:

no of moles =vol×molarity

How many atoms are in 25.0 grams of carbon?

Answers

mol = 25/12

= 2.083 mol

1 mol = 6.02 × 10^23 atoms

2.083 mol = X

X = 2.083/1 × 6.02 × 10^23

= 1.254 × 10^24 atoms

Calculate the mass of diphosphorus pentoxide (P,05) that contains a trillion (1.000 x 10^2) phosphorus atoms. Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.​

Answers

Answer: The answer is 94.25 × 10¯¹² g.

How abundant is Polonium in the earth's crust?

Answers

Even in pitchblende, polonium is exceedingly rare: 1,000 tons of ore must be treated to yield 40 milligrams of polonium. It has a one-part-in-ten-thousandth-thousandth-thousandth-thousandth-thousandth-thousandth It is found in nature as a byproduct of the radioactive decay of uranium, thorium, and actinium.

Atomic Number: 210

What would happen if hydrogen chloride gas is bubbled through a solution of lead (II) nitrate? Explain​

Answers

A white precipitate of silver chloride will be formed when Hydrogen chloride gas is passed through silver nitrate.

A white precipitate of silver chloride will be formed when Hydrogen chloride gas is passed through silver nitrate.2HCl+2AgNO³

→2AgCl+2HNO³

The reaction between AgCl and NH4OH will result in the products of Ag(NH3) 2+and Cl - ions .

AgCl+2NH 4OH→Ag(NH3) ²Cl+HO

can y’all please help me answer?

Answers

Answer:

It really depends on the situation. If you have 1000 elk and 2 wolves, they really would play a better role in killing off elk so that the elk population doesn't get over populated and diseased, causing a major population collapse. But if there were only 10 elk and 50 wolves, the wolves would play a very negative role on the population.

Hope this helps!

Explanation:

help pls very simple

Answers

What equipment is generally used to make lyophilized medications suitable for administering to the patient

11) What volume will 0.75 mol of Oxygen gas (O2) occupy at 298 K and a pressure of 52.7 kPa?

Answers

Answer:

Volume = 35.3L

Explanation:

Use Ideal Gas Law (PV=nRT) and isolate for V (volume) by dividing both sides by P (pressure). You will then get the eqaution listed below and you can solve by using the method I used below.

V = nRT/P

V = (0.75kPa)(8.314)(298K)/(52.7kPa)

V = 1858.179/52.7

V = 35.3L

NO LINKS!!!! 50 PTS!!!
What is a title name for Aerobic cellular respiration?

Answers

Answer:

try this

Explanation:

I searched it but I don't know

The ___ variable responds to the __ variable and goes on the Y-axis.
1. Dependent, Independent
2. Independent, Dependent
3. Control, Constant
4. Constant, Control

Answers

Answer: 1. Dependent, Independent The dependent variable responds to the independent variable and goes on the Y-axis.

Explanation: The independent variable is controlled or manipulated by the experimenter. For example, someone's age might be an independent variable. Other factors (such as what they eat, how much they go to school, how much television they watch) aren't going to change a person's age.The dependent variable is what you are measuring. For example, a test score could be a dependent variable because it could change depending on several factors such as how much you studied, how much sleep you got the night before you took the test, or even how hungry you were when you took it.

How that helps. :)

The dependent variable responds to the independent variable and goes on the Y-axis. Therefore, option A is correct.

What is dependent variable ?

In mathematical modeling, statistical modeling, and experimental sciences, there are dependent and independent variables. Dependent variables are so-called because, during an experiment, their values are examined on the assumption or presumption that they are governed by the values of other variables.

the dependent variable on other measurable variables As a result of an experimental manipulation of the independent variable or variables, these variables should change.

What you track in the experiment and what is impacted by it are both considered dependent variables. The independent variable affects the dependent variable's behavior. Because it "depends" on the independent variable, it is known as a dependent variable.

Thus, option A is correct.

To learn more about the dependent variable, follow the link;

https://brainly.com/question/1479694

#SPJ2

How are all atoms of silver alike, but different from atoms of other elements?
A. All atoms of silver have the same mass.
B. All atoms of silver have the same atomic number,
C. All atoms of silver have the same number of neutrons.
D. All atoms of silver have the same number of subatomic particles.

Answers

B. All atoms of silver have the same atomic number but different numbers of neutrons in the nucleus.

What is the empirical formula for C2H4S2?

Answers

Answer:

46

Explanation: ihjk

The Universal Space Agency wants to know the results of your Sim investigation. Write your report to the lead chemist, explaining why drops of liquid water appeared on the outside of the cold, but not the warm, soda can. Use evidence from your investigation in your explanation.

Answers

Answer:

due to warm temperature

Explanation:

Explanation:

There is water present in liquid form instead of liquid nitrogen on the outer side of the can because of the temperature present in the surrounding environment. The temperature around the can is little warm which is favourable for the water but not for the liquid nitrogen. The liquid nitrogen present in liquid state when the temperature of the surrounding is too cold. if it is warm, the liquid nitrogen starts boiling and converts into gaseous state so that's why the warmer temperature is responsible for the presence of water not the liquid nitrogen.

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