Which is the limiting reactant?

Answer:

D and E

Explanation:

The other answers don't support steel, they support iron or are supporting both, and the question is why steel alloys are more often used

C supports both

B supports how iron's strength

A supports iron being easily shaped and bent

hope this helps

Answer:

Explanation: what is the question?

This is a neutralisation reaction.

Answer: A) two substances combine to form a single new substance

Answer:Two substances combine to form a single new substance.

Explanation: just took it

Answer:

fusion in the sun

Explanation:

I know this because I am currently talking this test and I know it cause I did it

Answer:Turning on a ceiling fan: electrical to mechanical

I took the test and Fusion in the sun: chemical to light and heat Lighting a match: sound energy into chemical energy were the wrong answers.

Answer:

0.030

Explanation:

Step 1: Write the balanced reaction at equilibrium

CaCO₃(s) ⇌ CaO(s) + CO₂(g)

Step 2: Calculate the concentration equilibrium constant

The concentration equilibrium constant (Kc) is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients. It doesn't include solids or pure liquids.

Kc = [CO₂] = 0.030

Answer:

[tex]0.824\ \text{M}[/tex]

[tex]5.62\ \text{L}[/tex]

[tex]20.89\ \text{mol}[/tex]

Explanation:

Molar mass of NaCl = 58.44 g/mol

Mass of NaCl = 195 g

Volume of solution = 4.05 L

Molarity of solution is

[tex]\dfrac{195}{4.05}\times \dfrac{1}{58.44}=0.824\ \text{M}[/tex]

The molarity of the solution is [tex]0.824\ \text{M}[/tex]

Moles of NaCl = 4.63 mol

Volume is given by

[tex]\dfrac{4.63}{0.824}=5.62\ \text{L}[/tex]

The volume of the solution that contains the required amount NaCl is [tex]5.62\ \text{L}[/tex]

Volume of solution = [tex]25.35\ \text{L}[/tex]

Moles of solution is given by

[tex]0.824\times 25.35=20.89\ \text{mol}[/tex]

The number of moles of NaCl is [tex]20.89\ \text{mol}[/tex].

Answer:

224.1

Explanation:

Answer:

Chemical decomposition

Explanation:

Chemical decomposition, analysis or breakdown is the separation of a single chemical compound into its two or more elements or to simple compounds.

Answer:

Other processes that break down chemical substances into simpler substances, include depolymerization, decomposition, etc

Hope it helps!!!

Explanation:

Answer:

The answer is high entropy.

Explanation:

Answer: The missing product in the acid base reaction is NaCl.

Explanation:

Neutralization or acid base reaction is a chemical reaction in which acid and base combine to form salt and water. Acids donate [tex]H^+[/tex] ions and bases donate [tex]OH^-[/tex] ions  in water which combine to form water molecules.

The balanced chemical reaction for the given reaction is ;

[tex]HCl+NaOH\rightarrow NaCl+H_2O[/tex]

Thus the missing product is NaCl.

The missing product in the acid-base reaction is NaCl.

The balanced chemical reaction for the given reaction is ;

[tex]HCl +NaOH[/tex] → [tex]NaCl +H_20[/tex]

When acid and base react with each other they form salt and water. Water and salt both are neutral which means, whenever acid and base react together, they are neutralized by each other.

Neutralization or acid base reaction is a chemical reaction in which acid and base combine to form salt and water.

Acids donate  [tex]H^{+}[/tex] ions and bases donate  [tex]0H^{-}[/tex] ions in water which combine to form water molecules.

Since acid and base neutralize each other's effect,it is called neutralization reaction.

For Example: When Sodium Hydroxide ( NaOH) , a base, reacts with Hydrochloric acid (HCl) , it forms the salt, Sodium Chloride (NaCl) and Water.

The balanced chemical reaction for the given reaction is ;

[tex]HCl +NaOH[/tex] → [tex]NaCl +H_20[/tex]

Thus the missing product in the acid-base reaction is NaCl.

Learn more about the neutralization reaction here:

https://brainly.com/question/22945793

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Answer: Primary consumers make up the second trophic level. They are also called herbivores. They eat primary producers—plants or algae—and nothing else. For example, a grasshopper living in the Everglades is a primary consumer

Answer:

primary consumer make up the second trophic level .they are also herbivores they eat primary consumer plants or alger and nothing else .for example a grasshopper living in the everglades is a primary consumer

Answer:

the answer is ion..

hope it helps..

Answer:

The answer is "[tex]42537.93 \ C[/tex]".

Explanation:

Molar mass : [tex]Z_n = 65.38 \ \frac{g}{mol}\\\\[/tex]

[tex]\to Zn^{2+} + 2e^{-} = Zn\\\\[/tex]

[tex]\therefore\\\\ \to 65.38 \ g \ of\ Z_n \ require: \\\\ \to 2 \times 96500\ C\\\\\to 14.41 \ g\ require,\\\\ \to \frac{(14.41 \times 2 \times 96500)}{65.38} \ \frac{g}{mol} = 42537.93 \ C[/tex]

Answer:

Bacteria can use sexual and asexual repoduction

Explanation:

Answer:

See Explanation

Explanation:

An ionic bond occurs due to electrostatic attraction between a positively charged ion and a negatively charged ion.

A metal and a ligand are bound by a coordinate covalent bond or a dative bond. This bond occurs due to donation of electron pairs from ligands to available orbitals on metals.

The formation of coordinate bonds is evident when neutral molecules or negative ions with non bonding electrons donate same to empty metal orbitals. This is sometimes shown by an arrow pointing from the ligands to the metal center.

For instance; tetraammine copper II ion is formed when four ammonia molecules donate a lone pair each to available vacant orbitals of the copper metal center to form [Cu(NH3)4]^2+.

Answer:

B. aq if the reaction is inorganic (double or single displacement), neutralization, etc.

Explanation:

Hello there!

In this case, unfortunately we are not given the undergoing chemical reaction; however, in the most of the double displacement, neutralization, precipitation and in general, inorganic reactions, the hydrochloric acid must be B. aq as it must be dissolved in water as the reaction media. On the other hand, in some organic reactions, it can be either aqueous or gaseous, the latter, specially as a product. For that reason, you will need to make sure whether your reaction is organic or inorganic to correctly figure out the phase label.

Best regards!

Answer:

20.27 mol

Explanation:

454 L x (1 mol/22.4 L) = 20.27 mol

Answer:

3ppt is the relative error of the method

Explanation:

The relative error is a measurement used to determine the accuracy of your experiment, the equation to find the value in parts per thousand is:

Error = |True Value - Observed Value| / True Value * 1000

Where True value is 23.24%

And Observed value is 23.17%

Replacing:

Error = |23.24% - 23.17%| / 23.24% * 1000

Error =

Answer:

485 K

Explanation:

Step 1: Given data

Step 2: Calculate the final temperature of the gas

Assuming constant volume and ideal behavior, we can calculate the final temperature of the gas using Gay Lussac's law.

P₁/T₁ = P₂/T₂

T₂ = P₂ × T₁/P₁

T₂ = 200 atm × 303 K/125 atm = 485 K

Answer:

I definitely think he mostly observed that it was clear in color.

Explanation:

Answer:

m-Ice = 23.85g

Explanation:

The heat absorbed for the cold water (Heat of the increase of water + Heat of ice melting) is equal to the heat released for the water at 75°C. The equation is:

m-Ice-*C*ΔT + Hf*-m-Ice = m-water*C*ΔT

Where m-Ice- is our incognite

C is specific heat of water = 4.18J/g°C

ΔT is change in temperature = 25.0°C - 0.0°C = 25.0°C

Hf is enthalpy of fusion of water = 333.6J/g

m-water = 50.0g

ΔT is change in temperature = 75.0°C - 25.0°C = 50.0°C

m-Ice-*4.18J/g°C*25°C + 333.6J/g*-m-Ice = 50.0g*4.18J/g°C*50.0°C

104.5 m-Ice- + 333.6 m-Ice- = 10450

438.1 m-Ice = 10450

Answer:

102.6 mL

Explanation:

The reaction that takes place is:

First we calculate how many NaOH moles are there in 50.00 mL of a 0.8000 M solution:

Then we convert NaOH moles into HCl moles:

Finally we calculate the volume of a 0.3900 M solution would contain 40 milimoles:

Answer:

phototropism

Explanation:

since photo is (light?

Answer:

See Explanation

Explanation:

Ionization energy refers to the energy required to remove an electron from an atom. Metals have lower ionization energy than non metals since ionization energy increases across a period.

One thing that we must have in mind is that it takes much more energy to remove an electron from an inner filled shell than it takes to remove an electron from an outermost incompletely filled shell.

Now let us consider the case of magnesium which has two outermost electrons. Between IE2 and IE3 we have now moved to an inner filled shell(IE3 refers to removal of electrons from the inner second shell) and a lot of energy is required to remove an electron from this inner filled shell, hence the jump.

For aluminium having three outermost electrons, there is a jump between IE3 and IE4 because IE4 deals with electron removal from a second inner filled shell and a lot of energy is involved in the process hence the jump.

Hence a jump occurs each time electrons are removed from an inner filled shell.

Answer:

First balance the equation

C2H6 + 7/2O2 2CO2 +3H2O

for one mole of C2H6 there are 7/2 mole of O2 required. so for4.50 moles you require 4.50 x 7/2 = 15.75 moles of O2.

Explanation: