1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katrin [286]
3 years ago
8

Read the word equation: “Propane gas plus oxygen gas produces __________.”

Chemistry
1 answer:
Dmitriy789 [7]3 years ago
5 0

Answer:

Propane gas plus oxygen gas produces water and carbon dioxide.

Explanation:

This is the initial chemical equation: C3H8 + O2 = CO2 + H2O

This is the balanced chemical equation: C3H8 + 5 O2 = 3 CO2 + 4 H2O

You might be interested in
5 g of gold and 25 g of silver are mixed to form a single-phase ideal solid solution. (a) how many moles of solution are there?
worty [1.4K]

Mole fraction for silver= 0.2317643/0.3079193

                                     = 0.7526787

Mole fraction for gold=0.076155/0.3079193

                                    =0.2473212

What is Molar Fraction?

The mole fraction is the product of the number of molecules of a specific component in a mixture and its total molecular weight. It serves as a means of indicating how concentrated a solution is.

It is a unit of concentration, defined as the product of the moles of a component and the moles of the entire solution. When all the parts of a solution are summed up, their mole fraction equals 1.

molar mass of silver = 107.8682g/mol

Molar mass of gold= 196.96657g/mol

Therefore mole = mass/molar mass

For silver: 25g/107.8682g/mol = 0.2317643mol

For gold: 15g/196.96657g/mol= 0.076155mol

Total number of mole= 0.2317643+0.076155

                                    = 0.30791193mol

Mole fraction for silver= 0.2317643/0.3079193

                                      = 0.7526787

Mole fraction for gold=0.076155/0.3079193

                                     =0.2473212

Learn more about Mole Fraction from given link

brainly.com/question/28590918

#SPJ4

3 0
1 year ago
Dissolving 5.28 g of an impure sample of calcium carbonate in hydrochloric acid produced 1.14 L of carbon dioxide at 20.0 °C and
swat32

Answer:

\%\ mass\ of\ CaCO_3=93.37\ \%

Explanation:

Given that:

Pressure = 791 mmHg

Temperature = 20.0°C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T = (20 + 273.15) K = 293.15 K  

T = 293.15 K  

Volume = 100 L

Using ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 62.3637 L.mmHg/K.mol  

Applying the equation as:

791 mmHg × 1.14 L = n × 62.3637 L.mmHg/K.mol  × 293.15 K  

⇒n of CO_2 produced =  0.0493 moles

According to the reaction:-

CaCO_3 + 2 HCl\rightarrow CaCl_2 + H_2O + CO_2

1 mole of carbon dioxide is produced 1 mole of calcium carbonate reacts

0.0493 mole of carbon dioxide is produced 0.0493 mole of calcium carbonate reacts

Moles of calcium carbonate reacted = 0.0493 moles

Molar mass of CaCO_3 = 100.0869 g/mol

The formula for the calculation of moles is shown below:

moles = \frac{Mass\ taken}{Molar\ mass}

Thus,

0.0493\ mol= \frac{Mass}{100.0869\ g/mol}

Mass_{CaCO_3}=4.93\ g

Impure sample mass = 5.28 g

Percent mass is percentage by the mass of the compound present in the sample.

\%\ mass\ of\ CaCO_3=\frac{Mass_{CaCO_3}}{Total\ mass}\times 100

\%\ mass\ of\ CaCO_3=\frac{4.93}{5.28}\times 100

\%\ mass\ of\ CaCO_3=93.37\ \%

3 0
3 years ago
How many grams are in 2.5 moles of N2? <br><br> (2 decimal places)
Leokris [45]

Answer: How many grams are in 2.5 moles of N2?

Explanation: 1 mole is equal to 1 moles N2, or 28.0134 grams.

 One mole of N2 molecules would have a mass of 2 X 14.01 g = 28.02 g.

3 0
3 years ago
Scientists us ________waves to study the characteristics of Earth Layers_______ cannot travel through liquid, so the ________mus
Lady bird [3.3K]

Answer:

1)seismic 2) S-waves 3) outer core

6 0
3 years ago
If you are mixing a solution in a spray bottle with 15 oz of water how much chlorine do you need to add for the correct ratio
SOVA2 [1]
You should add 1 or 2 ounces
4 0
3 years ago
Other questions:
  • Which process does a cell use to extract energy from food in order to maintain homeostasis?
    6·2 answers
  • Given the atomic weights of carbon, 12.01; hydrogen, 1.01; and oxygen, 16.0, what is the molar mass of glucose (C6H12O6)?
    9·2 answers
  • Life science explores _____.
    13·1 answer
  • What is the mass of oxygen in 10.0 grams of water
    7·2 answers
  • Michelle chooses a 10 kg weight. She sets up a ramp made of smooth metal that makes an angle θ with the floor. She attaches a sp
    8·1 answer
  • When you strike a match you produce frictional heat energy what does this input of energy present in a chemical reaction
    5·2 answers
  • Which of the following is the best definition of half-life for a radioactive substance?
    7·2 answers
  • How many moles of N 2 make 1.76 moles of NH 3 ? do you need to. Please help me!
    5·1 answer
  • What is a vapor?
    8·1 answer
  • Hello people~
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!