Equation between Mg and H2O

Answers

Answer 1

Answer:

Mg + 2H2O → Mg(OH)2 + H2, is normally sluggish, but it becomes reasonably rapid when a milled composite of powdered magnesium metal and powdered iron (1−10 mol %) is used with sodium chloride solutions.


Related Questions

write the formulas of alkanes that contain three, five, seven, and nine carbon atoms​

Answers

Answer:

Explanation:

Name Number of Carbon Atoms Molecular Formula

methane  1 CH4

ethane 2 C2H6

propane 3 C3H8

butane 4 C4H10

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Answers

Answer:

Option a

Explanation:

simple

Answer:

The two solutions do not react with each other unless the water is boiled off, then the two will decompose.

Explanation:

What evidence is there to support the theory that strong nuclear force is greater than electromagnetic force?
A: Electrons are attracted to protons.
B: Protons repel other protons.
C:The nucleus holds the protons together.
D:Protons and neutrons are attracted to each other.

Answers

Answer:

The electromagnetic force is a long range force which acts of charged particles. Like charges repel and unlike charges attract. ... The strong nuclear force is very short range and can only bind adjacent protons and neutrons. The electromagnetic force is long range.

Explanation:

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Which of the following is an example of a gas solution?

Select one:
a. Air in water.
b. Antifreeze in water.
c. Bronze alloy.
d. Helium in air.​

Answers

d- Helium in air me air is made up of various gases

Calculate the number of moles of alkali in 25cm3 of NaOH solution used.

Answers

Answer:

0.001mol

Explanation:

volume (NaOH) =25cm³ =0.025dm³

molar volume = 22.4dm³

n = V = 0.025 = 0.001mol

Vm 22.4

Someone pls help me I will make you brain

Answers

Answer:

the second answer

Explanation:

Answer:

A Erosion of structures and buildings

Explanation:

is it true or false when the there are too many protons making the nuclei unstable, it will undergo a positron decay and a proton will turn into a neutron.

Answers

Answer:

True

Explanation:

As the number of protons in the nucleus increases, the number of neutrons needed for a stable nucleus increases even more rapidly.

Which two elements are in the same group based on their atomic model?
Please help me with this ASAP.

Answers

Answer: 1 and 2

i think

Explanation:

how many sulfide ions are in 15 dg of sodium sulfide?

Answers

There are 1.16x10²² sulfide ions (S²⁻) in 15 dg of sodium sulfide (Na₂S).

The equation for sodium sulfide is the following:

Na₂S → 2Na⁺ + S²⁻  (1)

So from equation (1), we can see that in 1 mol of sodium sulfide we have 1 mol of sulfide ions and 2 moles of sodium ions.

First, let's find the number of moles of Na₂S

[tex] n_{Na_{2}S} = \frac{m_{Na_{2}S}}{M_{Na_{2}S}} [/tex] (2)

Where:

[tex]m_{Na_{2}S}[/tex]: is the mass of Na₂S = 15 dg = 1.5 g    

[tex]M_{Na_{2}S}[/tex]: is the molar mass of Na₂S = 78.0452 g/mol

The number of moles of Na₂S is (eq 2):

[tex] n_{Na_{2}S} = \frac{1.5 g}{78.0452 g/mol} = 0.0192 \:mol [/tex]

We can find the number of ions of S²⁻ with Avogadro's number, knowing that the number of moles of Na₂S is equal to the number of moles of S²⁻ (eq 1).  

[tex] ions_{S^{2-}} = \frac{6.022 \cdot 10^{23} \:ions}{1\:mol}*0.0192 \:mol = 1.16 \cdot 10^{22} \:ions [/tex]

Therefore, there are 1.16x10²² sulfide ions in 15 dg of sodium sulfide.

Find more about Avogadro's number here:

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what is responsible for changes in the state of matter?

and how are

the molecules of a liquid different from that of a solid? PKSS HELOOOÑLPPPP

Answers

Answer:

Temperature and pressure are the two factors which are responsible for change in state of matter.

Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. ... In the solid the particles vibrate in place. Liquid – In a liquid, particles will flow or glide over one another, but stay toward the bottom of the container.

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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:

which two particles would be attracted to each other?

Answers

Answer: protons and electrons.

Explanation:

Gravity relates to a stream's ability to erode and deposit material by causing water to flow faster down a steep slope. True or False

Answers

Answer:

true

Explanation:

Someone pls help me I will make you brain

Answers

Answer:

Thanks but I already have a brain LOL.

Your answer is D cooler temperatures.

Melting permisfrost actualy is a source of greenhouse gas because it realeses water which could in turn be vaporized eventualy.

6. Potential energy can be
transformed into kinetic energy
of force is applied to the object.
True or false?

Answers

Answer:

true

Explanation:

because there is love in the universe and we converse in each others mind soul brain time stone

pls help noww
Just want to see who's the smartest here
promise to tag u as brainliest​

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

1. The equation representing the equation is ~

[tex] \mathrm{Na + Cl\rightarrow NaCl}[/tex]

The given reaction is a redox reaction because there's a transfer of electron from Sodium (Na) to chlorine (Cl)

where sodium is oxidized (due to loss of electron) and chlorine get reduced (due to gain of electron).

2. Sodium is a highly reactive element which belongs to the 1st group of periodic table, hence it can catch fire if it is kept free in atmosphere. so in order to prevent that it is stored in kerosene oil, which doesn't let Sodium come in contact with air .

NEED HELP ASAP. Write a statement explaining your claim about whether or not the equation is correctly balanced.
Then, provide evidence that supports your claim about whether or not the equation is correctly
balanced. Next, connect your evidence to your claim about the equation.

Answers

Answer:

Explanation:

Hi! can you add the choices.

Help! Will go be brianleist

Answers

Answer:

d

Explanation:

Answer: c

Explanation:

Which sequence is used to separate a soluble salt from a mixture of a soluble and an insoluble
salt?
A
add solvent, heat the mixture, crystallise the mixture
add solvent, heat the mixture, filter, crystallise the filtrate
B
C
heat the mixture, filter, crystallise the filtrate
heat the mixture, filter, add solvent, crystallise the filtrate
D

Answers

C. because heat the mixture filter djrjd

Which of the following properties is a chemical property?

Answers

Answer:

flammability, toxicity, acidity, reactivity are some examples.

sorry you left out your options.

Answer:

Where are the options

Explanation:

Can you be a little more specific about your question?

how does the advancement of medical technology increase the number of medical ethical issues that arise?

Answers

Answer:

People are getting richer and richer as technology advances, this may make it so that some people are getting treated unfairly. Signs of little money may support the reason that you are not getting the help you need; this means that health problems would arise more, resulting in an unfair lifestyle.

a person dies, and within hours, the skeletal muscles develop a locked contraction known as rigor mortis. calcium ions leak from the sarcoplasmic reticulum into cytoplasm. from your knowledge of cross bridge cycling, what best explains this rigor?

Answers

Rigor mortis is the stiffening of the body after death. After death, the body begins to get cold. From about two to six hours after death, the muscles start to stiffen, probably because the actin and myosin filaments of the muscle slide into each other. The rigor mortis starts at the eyelids, jaw and neck and then slowly spreads to all parts of the body within six hours.

Contrary to popular belief, rigor mortis will occur more quickly in high ambient temperatures than in cold conditions. This is because the underlying chemical reaction occurs faster at higher temperatures.  

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70 points!!!! will mark the brainliest,
ANSWER ASAP PLS??????????????

Answers

Answer:

I believe it's A.

Explanation:

Answer:

option C

Explanation:

There are 2 types of changes

Physical change :- The physical properties are changed and its temporary.Chemical change :- The chemical properties are changed and its permanent.

which statement best describes what occurs during a chemical reaction?

a) the bondsman reactants break so that elements can rearrange down form new products

b)bonds within the nucleus of reactants atoms are broken and rearranged to form new product atoms

c) the bonds and products break so that elements can rearrange and form new reactants

d)reactants atoms are destroyed releasing energy which is used to create new product atoms​

Answers

Answer:

bonds within the nucleus of reactants atoms are broken and rearranged to form new product atoms

Metals are good conductors of current.

Answers

Answer:

absolutely correct....................

Which hybrid orbitals overlap to form the sigma bonds between the indicated atoms in xanthine?

Answers

Many nitrogen and carbon atoms can be found in the structure of a heterocyclic molecule called xanthine, which is present in many biological systems.

The development of a sigma bond between these atoms is an essential component of its binding. A special example is the sigma bond between the nitrogen atom and the neighboring carbon atom. In the context of this sigma bond, the hybridization state of nitrogen can be either [tex]\rm sp^2[/tex]or [tex]\rm sp^3[/tex], and the hybridization state of carbon can be [tex]\rm sp^3[/tex]. A sigma bond is formed when the hybrid orbitals of carbon and nitrogen, which are each [tex]\rm sp^2[/tex] hybridized and [tex]\rm sp^3[/tex] hybridized, overlap. A strong covalent bond can develop when the [tex]\rm sp^2[/tex] hybrid orbitals of nitrogen and carbon line up. This allows electron sharing.

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Unless otherwise instructed, you may refer to the periodic table in the Chemistry: Problems and Solutions book for this question.

Which element belongs to the p-block?


cobalt


oxygen


rubidium


hydrogen

Answers

Answer: oxygen

There is the s,p,d and f blocks, from groups 1-2 that is the s block, 13-18 that’s the p block, 3-12 is the d block and the f would be lanthanide(#57-71) and actinide (#89-103).

How do anion formation and valence electrons relate?

Answers

Answer:

Atoms gain valence electrons to form anions.

Explanation:

Which of the following elements has the smallest atomic radius?

Group of answer choices

Nitrogen

Oxygen

Fluorine

Carbon

Answers

Answer:

Fluroine

Explanation:

Answer:

Fluorine

Explanation:

Nitrogen atomic radius: 155 pm

Oxygen atomic radius: 152 pm

Fluorine atomic radius: 147 pm

Carbon atomic radius: 170 pm

Therefore, fluorine has the smallest atomic radius.

1. What atoms make up a molecule of Water?
2. What atoms make up a molecule of Carbon Dioxide?

I would appreciate it if this got answered and I will mark as brainliest, thank you.

Answers

Explanation:

Atoms join together to form molecules. A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom

Carbon dioxide is a colorless and non-flammable gas at normal temperature and pressure. Although much less abundant than nitrogen and oxygen in Earth's atmosphere, carbon dioxide is an important constituent of our planet's air. A molecule of carbon dioxide (CO2) is made up of one carbon atom and two oxygen atoms.

I hope you got it..... ♥️

Answer:

1) 1Atoms join together to form molecules. A water molecule has three atoms: two hydrogen (H) atoms and one oxygen (O) atom. **

2) Although much less abundant than nitrogen and oxygen in Earth's atmosphere, carbon dioxide is an important constituent of our planet's air. A molecule of carbon dioxide (CO2) is made up of one carbon atom and two oxygen atoms. Carbon dioxide is an important greenhouse gas that helps to trap heat in our atmosphere. ^^

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