Please help me on this question

Please Help Me On This Question

Answers

Answer 1
Acids react with metals to form hydrogen gas.

Related Questions

Use the reaction shown l to answer these questions.
2CO(g) + 2NO) → N2(g) + 2CO2(g)
If 42.7 g of CO is reacted completely at STP, what
volume of N2 gas will be produced?

Answers

Answer:

16.8dm3

Explanation:

2 moles of CO gives 1 mole of N2

2 moles of CO= 2* 28= 56g

1 mole of N2 = 1* 22.4dm

56g of CO gives 22.4dm3 of N2

42.7 of CO will give> (42.7*22.4)/56

=16.8dm3

The volume of [tex]N_{2}[/tex] gas will be produced 16.8 [tex]dm^{3}[/tex].

What  is volume

Volume is sometimes referred to as capacity. The volume of a cylindrical jar, for example, is used to determine how much water it can hold.

Calculation of volume is shown below:

The given reaction is: 2CO(g) + 2NO) → N2(g) + 2CO2(g)

It can be seen that 2 moles of CO give 1 mole of [tex]N_{2}[/tex].

So, 2 moles of CO = 2×28 = 56 g.

Hence, 1 mole of [tex]N_{2}[/tex] = 1×22.4 = 22.4 [tex]dm^{3}[/tex].

56 g of CO will give 22.4 [tex]dm^{3}[/tex] of nitrogen atom.

42.7 of CO will give = (42.7×22.4) / 56

= 16.8 [tex]dm^{3}[/tex].

Therefore, the volume of nitrogen will be 16.8 [tex]dm^{3}[/tex].

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Let's say that you were given the following
problem:
A gas that exerts a pressure of 151 mm Hg in a
container with a volume of L will exert a
pressure of 166 mm Hg when transferred to a
container with a volume of 0.532 L.
Let's begin by assigning our variables. Let's say
that P1 = 151 mm Hg. What is V2?

Answers

Answer:

V2~0.4839M

Explanation:

We're going to use Boyles law to answer the question.

Boyle's law:

P1V1=P2V2

P1=151mmHg

P2=166mmHg

V1=0.532L

V2=?

V2=(P1 x V1)/P2

V2=(151 x 0.532)/166

V2~0.4839M

Hope it helps:)

Answer: C. unknown

Explanation: got it right on acellus

Why are polar gases, such as H2O and NH3, more likely to deviate from the ideal gas behaviors described by the kinetic molecular theory? (3 points)

Question 4 options:

1)

The density of these gases is high, increasing the number of collisions and reducing their elasticity.

2)

The fluidity of these gases is high, resulting in a higher average kinetic energy.

3)

The particles have a significant volume, reducing the space between the moving particles.

4)

The particles have high intermolecular forces, reducing the elasticity of their collisions.

Answers

Answer:

HCl, H2O, and NH3 are the most polar of these, so they won't behave ideally because the particles have greater attractive forces between them. How does the kinetic-molecular theory explain the pressure exerted by gases? ... Particles are always in motion and when they are contained, they are elastic collisions.

The particles have high intermolecular forces, reducing the elasticity of their collisions.

What are polar gases?

Polar molecules are formed when a high electronegative atom combined with a less electronegative atom.

Ammonia, sulfur dioxide, hydrogen sulfide, are polar gases.

The non-polar gases are inert gas or noble gas.

The polar compounds are asymmetrically array.

Thus, the correct option is 4, The particles have high intermolecular forces, reducing the elasticity of their collisions.

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b) determine the number of moles of carbon dioxide
produced.​

Answers

Explanation:

The mass of one mole of a substance, expressed in gms, is equal to the mean molecular mass of the substance. The molecular mass of CO2= 12+2x16= 44 so the mass if a mole of CO2 is approximately 44 grams.

Hope it helps!!!...

Please mark it as brainliest...

A 0.530 M Ca(OH)2 solution was prepared by dissolving 36.0 grams of Ca(OH)2 in enough water. What is the total volume of the solution thus formed?

Answers

Answer:

0.917

Explanation:

Answer:

0.917

Explanation:

Just took the test

28. Which of the following reactions at equilibrium would NOT be affected by volume
changes at constant temperature?
a. 2 CO(g) + O2(e) < > 2 CO2(g)
b. 2 NO2(g) → N2048)
c. 2 NO(g) + 3 F2(g) → 2 F3NO(e)
d. O3(e) + NO(g) + > NOzle) +
e. None of the above.
Ozig)

Answers

Answer:

Explanation:

is the

determine the number of significant figures in 478 cm​

Answers

Answer:

There are 3 significant figures on this one.

Hello, anyone? help me

Answers

Hot spot volcanoes occur far from plate boundaries. Because the hot spot is caused by mantle plumes that exist below the tectonic plates, as the plates move, the hot spot does not, and may create a chain of volcanoes on the Earth's surface

Which of these events is likely to have caused the mass extinction of the dinosaurs?

A.An increase in Earth's overall temperature

B. A large volcanic eruption on nearby islands

C. The fallout of a meteor colliding with Earth's surface

D. Rising sea levels flooding low-lying coastlines

Answers

Answer is D! Hope I could help

HELP PLEASE!!!!!!!
140 grams of lead (II) nitrate are dissolved in water then mixed with a solution containing 75 grams of sodium chloride. The reaction creates the precipitate, lead (II) Chloride, and a solution of sodium nitrate. How many grams of lead (II) Chloride can be produced given the initial amount of lead (II) nitrate?

Answers

Answer:

    Try a grams calculator, Its pretty to nd one :D

Explanation:

What are the columns on the periodic table called?
(2.5 Points)

Answers

Answer:

A group is a column of elements in the periodic table of the chemical elements.

So, the columns on the periodic table are called groups.

NaOH+ N2O3---> ___+____​

Answers

Answer:

NaOH+ N2O3---> NaNO2 + H2O

Como Representar la distribución electrónica por el método de la escalera y con los cajones de la distribución eléctronica: En "s" máximo 2 electrones En "p" máximo 6 electrones En "d" máximo 10 electrones

Answers

Answer:

Como Representar la distribución electrónica por el método de la escalera y con los cajones de la distribución eléctronica: En "s" máximo 2 electrones En "p" máximo 6 electrones En "d" máximo 10 electrones

Explanation:

SISISISISISISISISISISI

how many moles of ions is in Magnesium chloride?​

Answers

we would say that the formula weight of MgCl2 = 95.211 g/mol (i.e., 95.211 g of magnesium chloride has a mole of magnesium cations and 2 moles of chloride anions.

HELP!

The piston of an internal combustion engine
compresses 218 mL of gas. The final pressure
is 15 times greater than the initial pressure.
What is the final volume of the gas, assuming
constant temperature?
Answer in units of mL.

Answers

Answer:

14.53

Explanation:

V1= 218ML

V2= ?

P2= 15P1

USING BOYLE'S LAW

P1V1= P2V2

V2= P1V1/P2

V2 = P1(218ML)/15P1 = 14.53ML

Find the number of moles in:
12.044 x 10^24 atoms

Answers

Explanation:

number of moles = number of particle/ 6.02X10^23

= 12.044 X 10^24/6.02×10^23

=20.0066 moles so round it up to 3 S.F

So

=20.0moles

what does Avogadro's law state and what is the formula​

Answers

The law is approximately valid for real gases at sufficiently low pressures and high temperatures. The specific number of molecules in one gram-mole of a substance, defined as the molecular weight in grams, is 6.02214076 × 1023, a quantity called Avogadro's number, or the Avogadro constant.

Answer:

Hello There!!

Explanation:

The answer is that it states that under the same pressure and temperature conditions, equal volumes of all gases contain the same number of molecules.

Formula:Vn=k

hope this helps,have a great day!!

~Pinky~

PLEASE HELP ASAP DUE SOON WILL MARK BRAINLIEST

Answers

1 is B ca mg fe cu 2 is C

2Al(s) + 3Cu^3 + (aq) -> 2Al^3 + 3Cu(s) which reactant is reduced and which is oxidicided.
Pls help I have a test in 1h

Answers

Answer:

Al is oxidized

Cu is reduced

Answer:

here

Cu is reduced

and

Al is oxidised

hope this will help you

have a nice day

Is this an alpha or beta decay?

Answers

it would be a alpha decay

1. Suppose the mechanical advantage of a machine is 4, and the input force is 20 N.
What is the output force?
0 16 N
0 24 N
80 N
O5N

Answers

Answer:

80 N

Explanation:

you can multiple

force equal to mass x gravity

Every closed circuit has an electric current, voltage, and ___________..
Fill in the blank

Answers

Answer: Power source

When crossing parents with genotypes Rr and rr what will be the percentage of the genotypes of the offspring

Answers

Answer:

Explanation:

Heterozygous cross with a hom.ozygous recessive yields the following results

50% rr (hom.ogyzous recessive)

50% Rr (heterozygous dominant)

A heterozygous cross with a homozygous recessive gives the following results: 50% rr (homozygous recessive) and 50% Rr (heterozygous dominant).

What is Parental crossing?

Crossing over is a type of cellular process which occurs during the process of meiosis when chromosomes of the same type line up. When these two chromosomes – one from the mother and one from the father – line up, parts of the chromosome can be switched. Two chromosomes contain the same genes, but the genes may have different forms.

The organisms in this initial hybridization are called the parental or P generation. The progeny of the Rr x rr cross are called F1 generation which will have a heterozygous cross with the homozygous recessive giving the following results: 50% Rr (homozygous recessive) and 50% rr (heterozygous dominant)

A cross between two of the offspring in F1 generation would produce a new set of progeny called second filial generation (or F2 generation).

Thus, a heterozygous cross with a homozygous recessive gives the following results: 50% rr (homozygous recessive) and 50% Rr (heterozygous dominant).

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Provide one example where a neutralization reaction is undesired/harmful. State the reactants and explain why it is harmful for this reaction to take place.

Answers

Answer:

You're in my science class wth

Explanation:

For instance farmers are using basic fertilizers to neutralize an acid soil –which is harmful for the plants- while basic solutions are added in the chimneys of factories to neutralize the acid smoke that they produce –avoiding the catastrophic effects of the acid rains. Acid released in the environment from industry creates acid rain which has many ecological effects. Acid rain makes waters acidic, and causes them to absorb the aluminium that makes its way from soil into lakes and streams. This combination makes waters toxic to crayfish, clams, fish, and other aquatic animals.

(2-2) Looking at the chemical formula CaF2 (calcium fluoride), what do you think this substance is made of? (Choose ALL that apply
Metal
Metalloid
Non-metal

Answers

Answer:

Metal

Non-metal

Explanation:

Ionic compounds are said to be formed when metals donate electrons to non metals.

The metals become positively charged while the nonmetals become negatively charged.

CaF2 is composed of Ca^2+ and F^-. Calcium is a metal of group 2 in the periodic table while F is a nonmetal of group 17 in the periodic table.

Hence CaF2 is composed of a metal and a nonmetal.

Which radiation detection device is the best to use for measuring the presence of radiation in large moving objects where constant monitoring is impossible?

film badge

Geiger counter

cloud chamber

scintillation counter

Answers

Answer:

A film badge

Explanation:

The film badge dosimeter or film badge is a personal dosimeter used for monitoring cumulative radiation dose due to ionizing radiation. It of a photographic film and a holder. This film badge is used to determine or measure and record the radiation exposure as a result of radiations, x-rays, gamma rays and also beta particles.

All users of medical x-ray equipment (C-arms, fluoro units, therapy units) must wear badges. Those using larger quantities of radioactive materials will also be provided badges. The correct option is A.

What is film badge?

Ionising radiation exposure is measured using photographic film for personnel monitoring purposes. A filter that protects part of the film from particular types of radiation may also be present in the film badge, which may contain two or three films with varying sensitivity levels.

A particular kind of passive dosimeter is the film badge. It comprises of a photographic emulsion film in a light-tight wrapping (kept in a holder) that changes optical density in response to ionising radiation. The holder, which also includes several filters (for calculating tissue equivalent amounts), is typically worn on the body's trunk.

So film badge is the device used most commonly today for monitoring the radiation exposure of personnel.

Thus the correct option is A.

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The data showed that recently the alligator population has decreased. How could the decrease in the alligator
population affect the other populations? Be sure to explain whether the gar population, the diving duck population, a
the crab population will change, and why.

Answers

Answer:

Since the alligator population decreased, this means there are less predators for the gar. Less predators for the gar mean the gar population will increase.  More gar also means more competition for the diving duck in terms of animals that eat crabs, and thus the diving duck population will also decrease.

Explanation:

Hope this helped <3

1 mole of hydrochloric acid reacts with 1 mole of sodium hydroxide to give _______ g of sodium chloride.

Answers

Answer:

58,5

Explanation:

Tipo de enlace en los compuestos. Compuesto /Electronegatividad Elemento 1/Electronegatividad Elemento 2/ Diferencia de electronegatividad (resta) Tipo de enlace CO2 KCl H2O

Answers

Answer:

Tipo de enlace enlace en CO2 - Covalente

Tipo de enlace enlace en KCl - iónico

Tipo de enlace enlace en H2O: enlaces covalentes y de hidrógeno

Electronegatividad de CO2 - Diferencia en electronegatividad de carbono (EN = 2.5) y oxígeno (EN = 3.5) = 3.5 - 2.5 = 1

Diferencia en electronegatividad de KCl = 3,2 -0,8 = 2,4

Diferencia en electronegatividad de H2O = 3.5 -2.1 = 1.4

Explanation:

Tipo de enlace enlace en CO2 - Covalente

Tipo de enlace enlace en KCl - iónico

Tipo de enlace enlace en H2O: enlaces covalentes y de hidrógeno

Electronegatividad de CO2 - Diferencia en electronegatividad de carbono (EN = 2.5) y oxígeno (EN = 3.5) = 3.5 - 2.5 = 1

Diferencia en electronegatividad de KCl = 3,2 -0,8 = 2,4

Diferencia en electronegatividad de H2O = 3.5 -2.1 = 1.4

The reaction is run at two temperatures where temperature 1 is lower than temperature 2. Which relationship is correct for either rate constant (k1 or k2) or activation energy (Ea,1 and Ea,2)

Answers

Answer:

The answer is "[tex]K_1 < K_2[/tex]"

Explanation:

In the given question, the value of the [tex]K=Ae^{-\frac{Ea}{RT}}[/tex] and the [tex]T_1 <T_2[/tex]is the rate value which is the constant that is  [tex]K_2>K_1[/tex]. As per the temperature value when its increase rate is constantly increasing. [tex]E_a[/tex] is activation energy it is not dependent on the temperature that why the answer is [tex]K_1 < K_2[/tex].

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Antony purchases his Play Station 5 for $1,099 from Best Buy near the Parks Mall. The sales tax is 8.25%. How much does he pay for taxes? (Round to the nearest hundredth place Chris found the equation of a trend line. The equationis shown below. y= 3x + 10. If x is 5, what is thepredicted value of y? Consider the division of 8y2 - 12y + 4 by 4y.What are the values of a and b?8y? - 12y+44y8724y- 12V ++4474= a +b+O a = 2y and b = 3O a= and b = -3yO a = 2y and b = -3O a- } ao a= 2 and b = 3y Which statement provides an analysis of how the treatment of Akaky by the young officials helps develop a central theme of the text?A It provokes the pity of another character as well as that of the narrator, developing the focus on human cruelty.B It causes a drop in Akaky's productivity, developing the focus on the importance of each individual's contribution to achieving a goal.C It produces amusement for the higher-ranking officials as well as for the narrator, developing the focus on human incompetence.D It provokes Akaky to stand up for himself, developing the focus on fighting back against inhumane treatment. 25 POINTS! WILL MARK BRAINLIEST!For never was a story of more woeThen of Juliet and her Romeo. These lines are an example ofA. A HaikuB. A BalladC. A LimerickD. A Couplet Please help answer the question in the picture What was not a reason for Adolf Hitler's rise to power?The humiliation of the Treaty of Versailles and it's impact on GermanyThe global depression that caused massive over inflation, high unemployment, and stalled international tradeThe ineffectiveness and unpopularity of the Weimar RepublicAll of these answers are true Helppppp plssssss!!!!!!! QUICK HELPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!! What is the approximate volume of the conebelow? fill in the blank in the following sentence with the appropriate prepositionbelow. note the hint in parentheses.la torta es _____(for) la fiesta. a. por b. parac. antes de d. al lado de pls help !!! Which of the 85 essays of The Federalist Papers is the most famous? This is second one! Its easy......pls I need all answers..... Can someone pleaseeee help and if youre correct ill give brianlest Which of the following describes a spectrum?A. A measurement of the energy associated with an electrontransitionB. A piece of glass that causes light to be divided into differentcolorsC. A range of wavelengths or frequencies of electromagneticradiationD. A list of the quantum numbers assigned to a particular electron Write a short poem about yourself Listed in the Item Bank are some important labels for sections of the image below. To find out more information about labels, some have more details available when you click on them. Drag and drop each label to the corresponding area it identifies in the image. Hello, can you help me? I have this question and I don't know how to answer it. Is a tire a conductor or an insulator? Thank you! Determine the internal rate of return for a project that costs $177,000 and would yield after-tax cash flows of $21,000 per year for the first 5 years, $29,000 per year for the next 5 years, and $42,000 per year for the following 5 years. Numa mquina trmica uma parte da energia trmica fornecida ao sistema(Q1) transformada em trabalho mecnico () e o restante (Q2) dissipado, perdido para o ambiente.sendo: : trabalho realizado (J) [Joule]Q1: energia fornecida (J)Q2: energia dissipada (J)temos: = Q1 - Q2O rendimento () a razo do trabalho realizado pela energia fornecida:= /Q1Exerccior resolvido:Uma mquina trmica cclica recebe 5000 J de calor de uma fonte quente e realiza trabalho de 3500 J. Calcule o rendimento dessa mquina trmica.soluo:=3500 JQ1=5000J= /Q1= 3500/5000= 0,7 ou seja 70%Energia dissipada ser: = Q1 - Q2Q2 = Q1- Q2=5000-3500Q2= 1500 JExercicio: Qual seria o rendimento se a mquina do exercicio anterior realizasse 4000J de trabalho com a mesma quantidade de calor fornecida ? Quanta energia seria dissipada agora?obs: Entregar foto da resoluo ou o clculo passo a passo na mensagem