Consider the compound calcium nitrate, Ca(NO3)2. Which statements are true about this compound? Check all that apply. There are two atoms of oxygen. There are six atoms of oxygen. There are two nitrogen atoms. There are two calcium atoms.

Answers

Answer 1

Calcium nitrate is made up of 6 oxygen atoms, 2 nitrogen atoms and one calcium atom.

Ca(NO₃)₂

Calcium nitrate is a compound consisting of calcium, nitrogen and oxygen compoundsIt is an inorganic compoundIt is water-absorbent and absorbs moisture from airCalcium nitrate has two forms, hydrous and anhydrousBoth forms are colourless and odourlessThe reaction to form Calcium nitrate is Ca + 2NO₃ -----> Ca(NO₃)₂

The number of oxygen atoms is: 2x3 = 6The number of nitrogen atoms is: 2x1= 1There is 1 calcium atom

Thus, calcium nitrate is made up of 6 oxygen atoms, 2 nitrogen atoms and one calcium atom.

Learn more about calcium nitrate reactions here:

https://brainly.com/question/17171430

#SPJ10

Answer 2

Answer:

B)There are six atoms of oxygen.

C)There are two nitrogen atoms.

Explanation:

edge 2023


Related Questions

the element with a completely filled p-subshell is:

Answers

The element with the completely filled p-subshell is Ar (Option C)

What is electronic configuration?

This is the arrangement of elecartons in the atomic orbitals of an element. The modern electronic configuration makes use of the s, p, d, f orbital notation where

Sharp (s) = Maximum of 2 electronsPrincipal (p) = Maximum of 6 electronsDiffuse (d) = Maximum of 10 electrons Fundamental (f) = Maximum of 14 electrons

How to determine the element with the completely filled p-orbital

To obtain the correct answer, we shall write the electronic configuration of each element given in the question. This is illustrated below

Na (11) => 1s² 2s²2p⁶ 3s¹P (15) => 1s² 2s²2p⁶ 3s²3p³Ar (18) => 1s² 2s²2p⁶ 3s²3p⁶Al (12) => 1s² 2s²2p⁶ 3s²

From the above illustrations, we can see that only Ar has completely filled p-subshell.

Thus, Ar (Option C ) is the correct answer to the question

Complete question

See attached photo

Learn more about electronic configuration:

https://brainly.com/question/14283892

#SPJ12

justify the statement nuclear energy is harmful as well as useful

Answers

The beneficial effects of nuclear energy is usually overlooked because of its potentially devastating side-effects

What is a chemical bond?

A. When electrons are shared between atoms

B. When protons are shared between

C. When neutrons are shared between atoms

Answers

Answer:

a

Explanation:

the bond is shared between the atoms because whith out it you cant have one

what will happen when a wax candle burned in air with limited oxygen?​

Answers

Answer:

The molecules of carbon dioxide are heavier than air. When a result, as they descend over the flame and candle, they push the oxygen and other air molecules out of the path. The oxygen can no longer react with the wax when it is pushed away from the wick. The flame is put out as a result.

Answer:

if the candle is burned in air with limited oxygen supply the candle will go out of fire as the oxygen is reducing....

Explanation:

Hope It Helps!!!

How many grams of methane,
CH4, are produced from the
complete reaction of 5.15 moles
of carbon monoxide, CO?

CO+ 3H₂ → H₂O + CH4

[? ] g CH4

Answers

Answer:

82.606g

Explanation:

[tex]5.15mol CO* \frac{1 mol CO}{1 mol CH4} *\frac{16.04 g CH4}{1 mol CH4} =82.606g CH4[/tex]

if the same amount of heat is added to 50.0 g samples of each of the metals, which are all at the same temperature, which metal will reach the highest temperature?

Answers

The metal which will reach the highest temperature is the metal with the lowest specific heat capacity.

What is the amount of heat added to each metal?

The amount of heat Q = mcΔT where

m = mass of metalc = specific heat capacity of mateal and ΔT = temperature change

Temperature change of the metal

Making ΔT subject of the formula, we have

ΔT = Q/mc

Given that Q and m are the same for each metal,

ΔT ∝ 1/c

We see that the temperature change is inversely proportional to the specific heat capacity.

Since the metals are at the same temperature, the metal which will reach the highest temperature is the metal with the lowest specific heat capacity.

So, the metal which will reach the highest temperature is the metal with the lowest specific heat capacity.

Learn more about temperature here:

https://brainly.com/question/16559442

#SPJ12

A balloon sits in the sunlight causing it to heat up and explode. Which of the following
explains what happened the best:

a. the particles of gas inside the balloon moved faster and decreased pressure in
the balloon, causing it to explode
b. the particles of gas inside the balloon moved faster and increased pressure in
the balloon, causing it to explode
c. the particles of gas outside the balloon moved faster and decreased pressure
on the balloon, causing it to explode
d. the particles of gas outside the balloon became more excited moved faster and
increased pressure on the balloon, causing it to explode

Answers

I think it’s A, the particles of gas inside the ballon move faster and decrease pressure in

14- Which statements about acids and bases are correct? (1 mark) 1- An acid reacts with a metal to give off hydrogen. 2- A base reacts with an ammonium salt to give off ammonia. 3-An acid reacts with a carbonate to give off carbon dioxide. 4- Alkaline solutions are orange in methyl orange.
A) 1, 2 and 3
B) 1, 2 and 4
C) 1, 3 and 4
D) 2, 3 and 4​

Answers

Answer:

a)

Explanation:

4th is incorrect.

Alkaline solutions are yellow in methyl orange.

Answer

Which statements about acids and bases are correct ?

A) 1, 2 and 3

<3

How many xenon atoms are contained in 2. 36 moles of xenon?.

Answers

Answer:

14.212 x 10^23 atoms

Explanation:

Xenon is a noble gas and is MONOTOMIC so

EACH mole is an Avagadro's Number of atoms

   2.36 * 6.022 x 10^23   atoms =

Fast food and juice boxes are example of which of these?
group of answer choices

habitat destruction

air pollution

water pollution

overpackaging

i need a answer within 20 mins i will give 30 points

Answers

Answer:

habitat destruction I think

Explanation:

A switch controls the current in a circuit that has a large inductance. The electric arc at the switch (Fig. CQ32.3) can melt and oxidize the contact surfaces, resulting in high resistivity of the contacts and eventual destruction of the switch. Is a spark more likely to be produced at the switch when the switch is being closed, when it is being opened, or does it not matter

Answers

When the circuit is opened, a spark is much more possible.

What is an inductor?

The primary purpose of an inductor is the storage of energy. This is why an inductor helps to eliminate a spark in a circuit.

In the circuit as described in the question, we know that there is no current when the circuit is closed, the current across the inductor remains constant but rapidly decreases at the opening of the circuit this could lead to a spark.

Learn more about an inductor:https://brainly.com/question/15893850

#SPJ11

Answer this please!!!

Answers

Answer:

c

Explanation:

The answer is both i and iii.

The pressure of a sample of helium is 1.556 atm in a 268.5 mL container. If the container is compressed to 112.4 mL without changing the temperature, what is the new pressure?
a. 3.72
b. 0.651
c. 1.94e4
d. 277

Answers

Answer:

a.  3.72 [atm]

Explanation:

For a gas at constant temperature, (with no change in number of molecules of the gas), we can apply Boyle's Law:  [tex]P_1V_1=P_2V_2[/tex]

[tex](1.556[atm])(268.5[mL])=P_2(112.4[mL])[/tex]

[tex]\dfrac{(1.556[atm])(268.5[mL\!\!\!\!\!\!\!\!{--}])}{112.4[mL \!\!\!\!\!\!\!\!{--}]}=\dfrac{P_2(112.4[mL]\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{-----})}{112.4[mL]\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!{-----}}[/tex]

[tex]3.716957[atm]=P_2[/tex]

It seems like the answer should have 4 significant figures since all of the other quantities have 4 significant figures, but the closest answer choice of those provided is a.  3.72

How many moles of water form
when would be required to react
with 183.5 g Ba(OH)2 reacts with
excess HBr?

2HBr + Ba(OH)2 → BaBr2 + 2H₂O

[?] mol H₂O

Answers

That answer is 2.12 mol H2O

Question 10 of 10
Why are railroad tracks built with a flexible expansion and contraction joint?
OA. The tracks have a larger coefficient of linear expansion than the
ground beneath.
B. The two have equal coefficients of linear expansion.
C. The ground beneath has a larger coefficient of linear expansion
than the tracks.
OD. The tracks have a smaller coefficient of linear expansion than the
ground beneath.

Answers

Railroad tracks built with a flexible expansion and contraction joint because the tracks have a larger coefficient of linear expansion than the ground beneath. Hence, Correct opotion is option (A)

Where is linear expansion used?

The linear expansion of a solid under a change in temperature can be measured using Δℓ/ℓ = αΔT and has applications in the ways solids expand and contract in everyday life.

The strain that the object undergoes has implications in engineering when fitting objects among each other.


Hence, Railroad tracks built with a flexible expansion and contraction joint because the tracks have a larger coefficient of linear expansion than the ground beneath. Therefore, Correct opotion is option (A)

Learn more about linear expansion here ;

https://brainly.com/question/14780533

#SPJ1

in this experiment, calcium hydroxide was partially dissolved in pure water. which of the following choices correctly expresses the relationship between [ca2 ] and [oh−] in this mixture?

Answers

The relationship between [tex][Ca2^{2+}][/tex] and [tex][OH^{-}][/tex] in this mixture is that there are 2 mole of hydroxide ions for every 1 mole of calcium ions.

What is solubility of a solute?

The solubility of a solute is the amount of solute that can dissolve in a given volume of solvent at a particular temperature.

Calcium hydroxide is partially soluble in water. The dissolution of calcium hydroxide in water produces calcium ions and hydroxide ions.

The equation  of the reaction is given below:

[tex]Ca(OH)_{2} \leftrightharpoons Ca^{2+} + 2\:OH^{-}[/tex]

Based on the equation of reaction, there are 2 mole of hydroxide ions for every mole of calcium ions.

Learn more about solubility at: https://brainly.com/question/7176737

#SPJ11

The table below shows the electronegativity values of various elements on the periodic table.
Electronegativities
1
2
15 16 17
24
3A 4A 5A 6A 7A
Li Be
8
F
1.0 1.5
2.0 2.5 3.0 3.5 4.0
Na Mg
P
0.9 1.2
1.5 1.8 2.1 2.5 3.0
K
Ca
Ge As Se Br
1.8 2.0 2.4 2.8
0.8 1.0
Rb Sr
2.5
0.8 1.0
Cs Ba
0.7 0.9
Which pair of elements would form an ionic bond?
O carbon (C) and oxygen (0)
H
2.1
a
ON
00
O

Answers

An ionic bond can be formed between Na and O, Mg and F or Li and H since they have large differences in their electronegativity values.

What are ionic bonds?

Ionic bonds are the bonds present in ionic compounds.

Ionic bonds are formed due to the electrostatic forces of attraction that exist between oppositely-charged ions.

Ionic bonds are formed between elements whose electronegativity values are far apart.

Thus, based on the given electronegativity values, an ionic bond can be formed between Na and O, Mg and F or Li and H.

Learn more about ionic bonds at: https://brainly.com/question/1332431

#SPJ1

An ionic bond can be formed between Na and O, Mg and F or Li and H since they have large differences in their electronegativity values.

What are ionic bonds?

Ionic bond, also called an electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound.

Metal atoms form positive ions, while non-metal atoms form negative ions. The strong electrostatic forces of attraction between oppositely charged ions are called ionic bonds.

Ionic bonds are formed between elements whose electronegativity values are far apart.

Thus, based on the given electronegativity values, an ionic bond can be formed between Na and O, Mg and F or Li and H.

Learn more about ionic bonds at:

brainly.com/question/1332431

#SPJ1

Determine if the following is a compound , Element or Mixture

Answers

Compound is a group of same molecules, Element is a group of same atoms and mixture is combination of two or more pure substances.

What are Molecules ?

Molecules are the combination of two or more different atoms combine in a fixed ratio.

Molecules can be independently founded.

Atoms are always founded in combined state and does not occurs independently except rare earth elements which belongs to 18th group of periodic table.

Chemicals are taken in compound state But they undergo chemical reaction individually in molecular level.

Hence, Compound is a group of same molecules, Element is a group of same atoms and mixture is combination of two or more pure substances.

Learn more compound here ;

https://brainly.com/question/13516179

#SPJ1

how is uranus and saturn similar

Answers

Answer:

Like Saturn, Uranus has rings and moons. But unlike Saturn — and indeed every other planet in the solar system — the ice giant is tipped on its side. In other words, rather than spinning like a top as it circles the sun, Uranus rolls around on its side.

Explanation:

they have rings and moons and are cold

what is formed when mixing a weak acid and strong base

Answers

Explanation:

when a weak acid and a strong based are mixed they react the pH can be determined by consider ing the equilibrium

The answers is Equilibrium

a sample of helium gas has a volume of 1.00 l. what is the final volume if both the pressure and kelvin temperature each double?

Answers

If the both pressure and temperature of the helium gas is doubled, the final volume is 1.00 Liters.

What is the final volume of the helium gas?

Combined gas law put together both Boyle's Law, Charles's Law, and Gay-Lussac's Law. It states that "the ratio of the product of volume and pressure and the absolute temperature of a gas is equal to a constant.

It is expressed as;

P₁V₁/T₁ = P₂V₂/T₂

Given that;

Initial volume V₁ = 1.00LInitial Pressure = PInitial temperature = TFinal pressure = 2PFinal temperature = 2TFinal volume V₂ = ?

P₁V₁/T₁ = P₂V₂/T₂

P₁V₁T₂ = P₂V₂T₁

V₂ = P₁V₁T₂ / P₂T₁

V₂ = ( P × 1.00L × 2T ) / ( 2P × T )

V₂ = ( 2.00L × P × T ) / ( 2 × P × T )

V₂ = ( 1.00L × P × T ) / ( × P × T )

V₂ = 1.00L

If the both pressure and temperature of the helium gas is doubled, the final volume is 1.00 Liters.

Learn more about the combined gas law here: brainly.com/question/25944795

#SPJ11

What is the optimum pH of formic acid-formate buffer? (The pK, of formic acid is 3.75.)

1.875

3.75

5.625

7.50

Answers

The optimum pH of formic acid - formate buffer is 3.75

What is Buffer ?

A substance or a solution which resists any changes in pH, when acid or alkali is added to it.

pH = pKa + log[base] / [acid]

Considering equimolar concentration of acid and base

pH = 3.75 + log(x)/(x)

pH = 3.75 + log (1)

pH = 3.75 + 0

pH = 3.75

Hence,

The optimum pH of formic acid - formate buffer is 3.75

Learn more about pH here ;

https://brainly.com/question/491373

#SPJ1

Find the magnetic force experienced by a proton moving with the speed of 3 × 105 m/s in the magnetic field B of magnitude 6 × 10-5 T.

Answers

The magnetic force experienced by a proton moving with a speed of 3 ×[tex]10^{5}[/tex] m/s in the magnetic field B of magnitude 6 ×[tex]10^{-5}[/tex] T will be 2.88×[tex]10^{-18}[/tex] N.

Magnetic force can be defined as the attraction or repulsion force that arises between electrically charged particles due to the motion of the charged particles.

Given,

Speed = 3×[tex]10^{5}[/tex] m/s

Magnetic Field, B= 6 ×[tex]10^{-5}[/tex] T

Magnetic force is the product of velocity, the charge of a proton, and the magnetic field present there.

The magnetic force can be represented as:

F=qvB

F=1.6×[tex]10^{-19}[/tex]×3×[tex]10^{5}[/tex] ×6 ×[tex]10^{-5}[/tex]

F=2.88×[tex]10^{-18}[/tex] N

Hence, the magnetic force experienced by the proton will be 2.88×[tex]10^{-18}[/tex] N.

Learn more about Magnetic force here:

https://brainly.com/question/25932320

#SPJ10

a burning candle wax reacts with oxygen. after a glass jar is placed over it, the candle goes out. what is the limiting reactant?

Answers

If the candle goes out when a glass jar is placed over it, then oxygen is the limiting reactant.

What is a limiting reactant?

The limiting reactant is the reactant that is present in the least amount. When the limiting reactant is exhausted, the reaction comes to a halt.

Thus, if the candle goes out when a glass jar is placed over it, then oxygen is the limiting reactant.

Learn more about limiting reactant:https://brainly.com/question/14225536?

#SPJ11

How many grams of oxygen are contained in a sample of H2O that also contains 3.85 moles of hydrogen atoms?

Answers

Answer:

30.8 g oxygen

Explanation:

There are 1/2 as many Oxygen moles as hydrogen moles in H2O

so there are   3.85 / 2    * 16    gm of oxygen = 30.8 gms oxygen

PLEASE HELP FAST! When 23.3 g of O2 reacts with 18.3 g C10H8, what is the limiting reactant. The equation is C10H8 + 12O2 --> 10CO2 + 4H2O?

Choices:
A. C10H8
B. O2
C. CO2
D. H2O

Answers

Answer:

B

Explanation:

The answer is B, O2

O₂ is the limiting reagent.

What is a limiting reactant?

A limiting reactant is described as the one that will be consumed first in a chemical reaction.

Calculation

C₁₀H₈ + 12O₂ → 10CO₂ + 4H₂O

Given, Mass of O₂ = 23.3 g

           Mass of C₁₀H₈ = 18.3 g

Molar mass of O₂ = 32 g

No. of moles of O₂ = 32/23.3 = 1.4 moles

Molar mass of C₁₀H₈ = 128 g

No. of moles of C₁₀H₈ = 128/18.3 = 6.9 = 7 moles

According to the equation,

1 mole of C₁₀H₈ yields 10 moles of CO₂. So, 7 moles of C₁₀H₈, give 70 moles of CO₂.

12 moles of O₂ yields 10 moles of CO₂. So, 1.4 moles of O₂ give 1.16 moles of CO₂.

We do know, however, that based on our balanced equation, if we were to totally react all 1.4 moles of O2, we could only produce a maximum of 1.16 moles of CO2. Even while there is enough C10H8 to generate more, the amount of O2 we have is a limiting factor because it will be consumed first.

So, our limiting reactant is O₂.

Learn more about limiting reagents here:

https://brainly.com/question/11848702

#SPJ2

What mass of H2 forms when
35.25 g Al reacts with excess
hydrochloric acid?

2AI + 6HCI →→2AICI 3 + 3H₂

Answers

Based on the mass ratio, the mass of H₂ produced is 3.51 g of H₂

What is the mass ratio of a reaction?

The mass ratio of a reaction is the ratio of the masses of the reactants as well as as products in a balanced equation of a reaction.

The equation of the reaction is given below;

2 AI + 6 HCI → 2 AICI₃ + 3 H₂

From the reaction equation, 2 * 27 g of Al produces 3 * 2 g of H₂

32.25 g of Al will produce: 6/55 * 32.25 g of H₂

Therefore, mass of H₂ produced is 3.51 g of H₂

Learn  more about mass ratio at: https://brainly.com/question/14577772

#SPJ1

Answer:

From the reaction equation, 2 * 27 g of Al produces 3 * 2 g of H₂

32.25 g of Al will produce: 6/55 * 32.25 g of H₂

Therefore, mass of H₂ produced is 3.51 g of H₂

Explanation:

Helpp!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

A homogenous mixture is that mixture in which the components mix with each other and its composition is uniform throughout the solution. A heterogenous mixture is that mixture in which the composition is not uniform throughout and different components are observed.

will you be my friend

Answer:

your cool

Explanation:

Prepare a project report on various samples of
a) a mixture
b) a compound
c) an element ( metal or non metal)
( 2 from each ) highlighting the main characteristics features of elements, compounds and mixtures.

Answers

Answer:

please mark me as brain list

Explanation:

Any substance that contains only one kind of an atom is known as an element. Because atoms cannot be created or destroyed in a chemical reaction, elements such as phosphorus (P4) or sulfur (S8) cannot be broken down into simpler substances by these reactions

Example: Water decomposes into a mixture of hydrogen and oxygen, on the other hand, cannot be decomposed into simpler substances. They are therefore the elementary, or simplest, chemical substances elements.

Each element is represented by a unique symbol. The notation for each element can be found on a periodic table of elements.

The elements can be divided into three categories that have characteristics properties: metals, nonmetals and semimetals. Most elements are metals, which are found on the left and toward the bottom of the periodic table. A handful of nonmetals are clustered in the upper right corner of the periodic table. The semimetals can be found along the dividing line between the metals and the nonmetals.

You test your hypothesis by completing a(n) _________.

Answers

You test your hypothesis by completing an experiment.

How we test our hypothesis?

We test our hypothesis by performing experiment or research because in an experiment, we test our hypothesis and collect data in order to draw a conclusion from it.

So we can conclude that you test your hypothesis by completing an experiment.

Learn more about hypothesis here: https://brainly.com/question/11555274

#SPJ1

Other Questions
Section B 13. Amanda produces the newsletter for an editorial club. Each newsletter contains pages printed on both sides in colour and in black. The graphic designer informs Amanda that the upcoming issue of the newsletter will have 4 pages printed in colour and 20 pages printed in black. Every 4 pages printed in colour will cost x cents. Every 4 pages printed in black will cost y cents. (i) Find an expression for the cost of printing one copy of the newsletter. (1 (ii) Each newsletter costs 14 cents to print. Give an example of the cost of printing 4 pages in colour and the cost of printing 4 pages in black. [ An educational institution in Shanghai wants to subscribe to this newsletter. In Singapore, each newsletter costs S$2.20. The conversion rate is 1 = S$0.198 45. (iii) Without using a calculator, estimate the price of one newsletter in Y. Each sheet of paper has a mass of 4.5 g. (iv) How heavy is one copy of the newsletter? In 1885 the first skyscraper was built and Elisha graves Otis invented what to help the movement through these buildings what are simultaneous equations quadrilateral ABCD is similar to quadrilateral EFGH find the measure of side EF round your answer to the nearest tenth if necessary When does if(x!=y) execute?A. when x doesn't equal yB. when x does equal yC. when x is greater than y Please help asap! giving brainliest to correct answer!! which pair of compounds has the same empirical formula? (5 points) select one: a. c3h8 and c3h b. c2h2 and c2h c. c4h10 and c6h d. c4h10 and c2h5 The angle of depression from the hot-airballoon to the car is 32How high is the hot-air balloon flying?Give your answer to 2 s.f.6600 feetNot drawn accurately PLEASEEE HELPPP ITS A UNIT TEST REVIEW !!!!! Read the excerpt from "Address to the United NationsFourth World Conference on Women" by HillaryClintonAt this very moment, as we sit here, women around theworld are giving birth, raising children, cooking meals,washing clothes, cleaning houses, planting crops,working on assembly lines, running companies, andrunning countries. Women also are dying fromdiseases that should have been prevented or treated.They are watching their children succumb tomalnutrition caused by poverty and economicdeprivation. They are being denied the right to go toschool by their own fathers and brothers. They arebeing forced into prostitution, and they are being barredfrom the bank lending offices and banned from theballot box.Mark this and returnWhich statement best explains Clinton's use ofparallelism?OIt highlights the many possibilities women havewhen they learn from other women.O It emphasizes how conditions are changing forwomen in different professionsIt contrasts the great achievements of women withthe continued threats to women.OIt illustrates how economic situations are the mostimportant issue facing women.Save and ExitNextSubmit make a 2 column proofplease make it simple like JK is parallel to NM(given)i will also give brainliest Prove triangle ABC is congruent to triangle DEC. What is the value of x in the equation 1/5 x-2/3y = 30, when y = 15? Oil inc. and petro corporation form a joint venture to design and test petroleum storage facilities and equipment. when a dispute arises, oil files a suit against petro. the court is most likely to apply the same principles to this joint venture as it applies to group of answer choices limited liability companies. corporations. sole proprietorships. partnerships. Kiesha was up for a promotion at work but didn't get it. She believes her coworker Mark got the job because of his gender. Because Kiesha believes she was treated unfairly, her bloodstream likely contains high levels of Help please help! Need help Preform the indicated operation.(2x+y)(3 x + y) Dihybrid crosses??? pls tell this answers Read the sentence. it always makes some students uncomfortable. which revision best establishes clarity? taking tests makes us uncomfortable. it always makes some students uncomfortable taking tests. it always makes some students, taking tests, uncomfortable. taking tests always makes some students uncomfortable. A breastfeeding mother is worried that her baby will develop food allergies if she eats peanuts or tree nuts before breastfeeding. Food allergies do not develop after breastfeeding, but they do develop if the infant is formula fed. Current evidence regarding breastfeeding and food allergies states that Si en un autobs hay disponibles solo tres asientos y siete personas estn de pie De cuntas maneras distintas podran ocupar esos asientos?