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
Soloha48 [4]
2 years ago
13

HELP! URGENTLY NEEDED! I NEED THIS ANSWER IN 5 MINUTES AND PERSON WHO HELPS GET THE ANSWER RIGHT GETS 25 POINTS!!! PLEASE I AM F

AILING THIS CLASS AND NEED SO MUCH HELP!!!!
The coefficient/s will balance the chemical equation CH4 +O2 -------» CO2 + H2O is


a

1, 2, 1, 2

b

2, 1, 1, 2

c

2, 2, 1, 1

d

1, 1, 1, 2
Chemistry
2 answers:
marishachu [46]2 years ago
7 0

Answer:

hey miss

Explanation:

gtnhenbr [62]2 years ago
7 0

The coefficients : a. 1,2,1,2

<h3>Further explanation</h3>

Given

Reaction(unbalanced)

CH4 +O2 -------» CO2 + H2O

Required

The blanced equation

Solution

Give a coefficient

CH4 +aO2 -------» bCO2 + cH2O

Make an equation

C, left=1, right=b⇒b=1

H, left=4, right = 2c⇒2c=4⇒c=2

O, left=2a, right=2b+c⇒2a=2b+c⇒2a=2.1+2⇒a=2

The equation becomes :

CH4 +2O2 -------» CO2 + 2H2O

You might be interested in
As the mass of the nucleus increases, what happens to the ratio of neutrons to protons in stable isotopes? A. The neutron:proton
vladimir1956 [14]
Propeen is nute 18?.9
8 0
2 years ago
Scientific process how can a casual question be answered 3 hypotheses water experiment
Vlad1618 [11]

There are 3 experiments which helps to under water evaporation system.

  • Both the temperature of the air surrounding the water and the rate of evaporation increased.
  • In the second experiment, we observed an increase in air flow around the water, and this time, the rate of evaporation increased as well.
  • In the third and final experiment, we observed an increase in the amount of light in the room, and this time, the rate of evaporation increased as well.
  • Because the kinetic energy of a substance can be measured by its temperature, increasing in the temperature or kinetic energy of the air around water will also increase the kinetic energy of the water, which will increase the rate of evaporation.
  • It's crucial to have good air flow since it drives water droplets in the air away from you, reducing the amount of humidity in the region. Because there will then be space for the evaporated air or space for the evaporated water to flow into the air, it will then be simpler for the water to really evaporate.
  • Water in the presence of sunlight is given extra energy, which increases evaporation.

Learn more about Evaporation here:

brainly.com/question/24258

#SPJ9

3 0
1 year ago
Sodium hydroxide (NaOH) and hydrochloric acid (HCl) combine to make table salt (NaCl) and water (H2O). Which equation is balance
Art [367]

The equation that is balanced among the given options is the first equation NaOH + HCl → NaCl + H2O

From the question,

We are to determine which of the options gives a balanced equation for the reaction between sodium hydroxide (NaOH) and hydrochloric acid (HCl) to make table salt (NaCl) and water (H₂O)

To do this, we will check which of the given equations is balanced, by checking the equations one after the other.

First, we will define what is meant by balanced equation.

Balanced equations are those whose coefficients result in equal numbers of atoms for each element in the reactants and products

  • For NaOH + HCl → NaCl + H2O

On the reactants side

Na = 1

O = 1

H = 2

Cl = 1

On the products side

Na = 1

O = 1

H = 2

Cl = 1

Since equal number of atoms of each element are present at both the reactants and products sides, then the equation is balanced

  • For 2NaOH + 2HCl → 2NaCl + H2O

On the reactants side

Na = 2

O = 2

H = 4

Cl = 1

On the products side

Na = 2

O = 1

H = 2

Cl = 2

The number of atoms of each element present at the reactants side and that present at products side are not equal.

∴ The equation is not balanced

  • For 2NaOH + HCl → NaCl + H2O

On the reactants side

Na = 2

O = 2

H = 3

Cl = 1

On the products side

Na = 1

O = 1

H = 2

Cl = 1

The number of atoms of each element present at the reactants side and that present at products side are not equal.

∴ The equation is not balanced

  • For NaOH + 2HCl → NaCl + H2O

On the reactants side

Na = 1

O = 1

H = 2

Cl = 2

On the products side

Na = 1

O = 1

H = 2

Cl = 1

The number of atoms of each element present at the reactants side and that present at products side are not equal.

∴ The equation is not balanced

Hence, the equation that is balanced is the first equation NaOH + HCl → NaCl + H2O

Learn more here: brainly.com/question/17015942

6 0
2 years ago
Read 2 more answers
A number is six more than 1/2 of another number
xenn [34]

Answer:

x = 11.

This checks out since 11 + 10 = 21.

Explanation:

3 0
3 years ago
There are 85.63 g of CO2 gas in a container maintained at STP. How many liters of CO2 are there in that container?
konstantin123 [22]

Answer:

V = 48.64 L

Explanation:

Given data:

Mass of CO₂ = 85.63 g

Temperature = 273 K

Pressure = 1 atm

Volume of CO₂ = ?

Solution:

Number of moles of CO₂:

Number of moles = mass/molar mass

Number of moles = 85.63 g / 40 g/mol

Number of moles = 2.14 mol

Volume in Litter:

PV = nRT

R = general gas constant = 0.0821 atm.L/mol.K

1 atm× V = 2.14 mol ×0.0821 atm.L/mol.K  ×273 K

V = 48.64 atm.L / 1 atm

V = 48.64 L

7 0
3 years ago
Other questions:
  • Where should the author of a case study introduce the central question of the text?
    5·2 answers
  • Item 4
    11·1 answer
  • The diameter of a carbon atom is 0.000000000154 m. What is this number expressed in scientific notation?
    7·2 answers
  • What is a chocking smell​
    14·1 answer
  • How many moles of mercury(Hg) are in 1.30 *10.7 atoms or mercury
    6·1 answer
  • Nitrogen gas consists of _____.
    9·2 answers
  • A chemist wants to extract copper metal from copper chloride solution. The chemist places 0.50 grams of aluminum foil in a solut
    14·2 answers
  • which statement describes the way in which energy moves between a system of reacting substances and surroundings ​
    10·1 answer
  • Why do lows appear where there are more clouds and Highs appear where it is clear? (EXPLAIN)
    11·1 answer
  • What substance is oxidized in the following reaction? 4HCl + MnO2 → Cl2 + 2H2O + MnCl2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!