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3 years ago

C3H8 + 5O2 → 3CO2 + 4H2O

Chemistry

1 answer:

trasher [3.6K]3 years ago

7 0

Answer:

16.5moles of CO2

Explanation:

Molar mass of O2 is 32g/Mol

No of mole = 880/32 = 27.5 moles

27.5 Mol of O2 gives X mole of CO2

5 mole of O2 gives 3 moles of CO2

No of mole of CO2 = (27.5×3)/ 5 = 16.5moles

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Project 1 Hypothesis Construction

alukav5142 [94]

The hypothesis should be; "Increasing the amount of ice increases the rate at which the ice will melt"

<h3>What is a hypothesis?</h3>

The term hypothesis refers to a tentative explanation that could be applied in order to explain an observation. When we give a hypothesis, it must be subjected to rigorous experimentation thus it can be confirmed or repelled by experiment.

Now, we can see that the question here is; "How does the amount of salt added to ice affect the rate at which the ice will melt?" This implies that the correct hypothesis here ought to have to do with the impact of the amount of ice in the affirmative.

Thus, the hypothesis should be; "Increasing the amount of ice increases the rate at which the ice will melt"

Learn more about hypothesis:brainly.com/question/13025783

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5 0

1 year ago

Which condition must be met in order for an equation to be balanced? The elements in the reactants are the same as the elements

Taya2010 [7]

Answer:

The number of atoms in the reactants equals the number of atoms in the products.

Explanation:

In every chemical reaction equation there are two sides; the reactants sides and the products side. The reactants side shows the species that combine to form the products. On both sides of the reaction equation, chemical species are found to be composed of atoms.

The major principle in balancing of chemical reaction equations is that the number of atoms of each element in the reactants side must be equal to the number of atoms of the same element on the products side. Once this condition is achieved, we can now say that the chemical equation is balanced.

7 0

2 years ago

Read 2 more answers

Help what are the answers please??!

Svet_ta [14]

That is hard if u don’t know how to do it than get a tuture

4 0

2 years ago

Predict the mass of iron (III) sulfide produced when 3.0 g of iron filings react completely with 2.5 g of yellow sulfur solid, S

gladu [14]

The complete balanced chemical reaction to this would be:

First convert mass into number of moles.

moles Fe = 3 g / (55.845 g/mol) = 0.05372 mol Fe

moles S8 = 2.5 g / (256.52 g/mol) = 0.0097458 mol S8

Then we find the limiting reactant. The limiting reactant is the one which has lower (moles/coefficient) ratio.

Fe = 0.05372 / 2 = 0.02686

S8 = 0.0097458 / (3/8) = 0.02599

So since S8 has lower ratio, therefore it is the limiting reactant so we base our calculation from it. From the reaction, we get 1 mole of Fe2S3 for every 3/8 mol of S8, therefore:

moles Fe2S3 = 0.0097458 mol S8 * (1 mole Fe2S3 / 3/8 mol S8)

moles Fe2S3 = 0.02599 mol

The molar mass of Fe2S3 is 207.9 g/mol, so the mass is:

mass Fe2S3 = 0.02599 mol * 207.9 g/mol

<span>mass Fe2S3 = 5.4 grams</span>

3 0

2 years ago

Read 2 more answers

1. The atomic number of lithium is 3. How many neutrons does an atom of lithium have fit is represented by the symbol shown belo

sineoko [7]

Answer:

c)4 neutrons

Explanation:

The atomic mass of Lithium is 7.

we know,

atomic mass=no. of proton+ no. of neutron

So, no. of neutron = atomic mass - no. of proton=7-3=4

Note: Atomic number is the number of protons.

Hope, this helps you.

5 0

2 years ago