What type of substance reacts with limestone (CaCO3) and produces carbon dioxide gas?

Answers

Answer 1

Answer: Acids react with calcium carbonate and more specifically carbonate to form carbon dioxide. An acid will give protons to the carbonate anion to produce carbonic acid which then decomposes into carbon dioxide and water. I hope this helps. Let me know if anything is unclear.

Answer 2

Answer:

In a bid to produce CO2 from CaCO3 Heat energy and acids(H2SO4) reacts with limestone (CaCO3) and produce carbon dioxide gas(CO2).

What type of substance reacts with limestone (CaCO3) and produces carbon dioxide gas?

Generally, the equation for the Chemical Reaction is mathematically given as,

CaCO3----->CaO +CO2

This is a decomposition reaction, it occurs when the reaction of heat energy reacts with CaCO3 in the atmosphere to produce CaO(s) +CO2(g).

Also

CaCO3(s) + H2SO4(aq) → CaSO4(s) + H2O(l) + CO2(g)

CaCO3 also reacts with acids to produce CO2 as shown in the balance equation above.

In conclusion, Acids and Heat energy reacts with limestone (CaCO3) and produce carbon dioxide gas.

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Which molecules contain good leaving groups?

Answers

Answer:

proton and neutron

Explanation:

proton is positive while neutron is neutral so they can live togher

What forms when iron-53 decays?

Answers

Iron-53 is a radioactive isotope of iron. It undergoes radioactive decay in order to become more stable. The process of radioactive decay involves the emission of particles or radiation from an unstable nucleus, resulting in a more stable form of the original element.

What happens when it goes through the radioactive decay ?

When iron-53 undergoes radioactive decay, it is transformed into an isotope of manganese. Specifically, it decays into manganese-53, which is a stable isotope of manganese.

This process of decay is known as beta decay, and it involves the emission of an electron (a beta particle) and a neutrino from the nucleus of the iron-53 atom. This causes the iron-53 atom to become a manganese-53 atom, which is more stable than the original iron-53 atom.

The process of radioactive decay is an important part of the natural decay of elements. It is a natural process that occurs in nature and is not caused by human activity.

Radioactive decay is responsible for the formation of many elements in nature, and it is also responsible for the formation of many of the elements that are used in everyday life.

Learn more about Radioactive at:

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It depends on the type of decay that is taking place if its a β+ it will decay into Mn-52 β- decays into Co-59

The temperature reading of –14°C corresponds to a Kelvin reading of

Answers

Degrees in Kelvin are always 273 higher than the corresponding celcius degree. Therefore, we just need to add 273 to the celcius degree to find the degree in Kelvin.

-14 + 273 = 259 K

K is the unit of degrees in Kelvin. The answer is 259K.

259 K. took the test

How many moles are in 68.5 liters of oxygen gas at STP?

Answers

We can solve this problem when we use the conditions of a gas at standard temperature and pressure. It has been established that at STP where the temperature is 0 degrees Celsius and the pressure is 101.325 kPa, the volume of 1 mole of gas is 22.4 L. We will use this data for the calculations.

68.5 L ( 1 mol O2 / 22.4 L O2 ) = 3.06 mol O2

Explanation:

It is known that at STP, there are 22.4 L present in one mole of a substance.

Therefore, in 68.5 liters there will be 1 mol divided by 22.4 L times 68.5 L.

Mathematically, $68.5 L * (1 mol O_(2))/(22.4 L)$

= 3.05 mol

Hence, we can conclude that there are 3.05 moles present in 68.5 liters of oxygen gas at STP.

Please help I cant figure this outformula is m(t) = Mo e^-rt
decay rate is r= ln2/h. Radium-221 has a half-life of 30 seconds. How long will it take for 90% of a sample to decay = o-rt

Answers

half life formula is t1/2 = ln2/lambda
Where lambda is the decay constant
Rewriting we get lambda = ln2 / t1/2
Subbing in 30 seconds as half life we get lambda= 0.0231049 approx.
I assume only mass of radium is what you want.
Hence he have the formula
m=mo e^-lambda x t
Where m is mass after time
Mo is initial mass.
For 90% to decay, m/mo x100% = 90%
Hence m/mo = 0.1 this is because 90% has decays so we are left with 10%
Rearranging, m=mo e^-lambda x t
We obtain
(m/mo)=e^-lambda x t
Subbing in above values we get,
0.1=e^-0.0231049 x t
Take ln on both sides to get
ln(0.1) = -0.0231049 x t
Hence,
t = ln(0.1) / (-0.0231049)
t= 99.65787 s
It takes about 100 seconds for 90% to decay

Help me with 23 fast

Answers

Answer:

a salt

Explanation:

compounds are made of molecules but we need to mention the type of compound formed.

Answer:

A salt

Because compounds are made of molecules but we need to mention the type of compound formed.

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