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
Neko [114]
3 years ago
10

Which one of the following reactions is NOT balanced?

Chemistry
1 answer:
Korolek [52]3 years ago
6 0

Answer:

co+ o2+ 2co2 is not balanced reaction

You might be interested in
A sample of an uranium compound is found to be losing mass gradually. Explain what is happening to the sample.​
yan [13]

Answer:

The uranium in the sample of the compound is radioactive

Explanation:

Some atoms can split on their own. Some split when bombarded by energetic particles. Such atoms are said to be radioactive.

Radioactivity is borne out of the drive of an atom to reach stabillity. Every atom have a specific neutron/proton ratio which ensures stability of the nucleus. A nucleus with a stability ratio different from that which makes it stable will become unstable and split into one or more other nuclei with emissons of energetic particles.

Note: neutrons and protons dictates the mass of an atom. They are located in the nucleus which is the site for nuclear radioactive reactions.

4 0
3 years ago
It took 1.5 hours for a bus to go from one city to the next. The bus traveled at an average velocity of 52 mph, west. How far ap
kozerog [31]
The answer is 78 mph

6 0
3 years ago
Read 2 more answers
If 45 mL of water are added to 250 mL of a 0.75 M K2SO4 solution, what will the molarity of the diluted solution be?
krok68 [10]

Answer:

\large\boxed{\large\boxed{0.64M}}

Explanation:

When you form a <em>diluted solution</em> from a mother (concentrated) solution, the moles of solute are determined by the mother solution.

The main equation is:

Molarity=\dfrac{\text{moles of solute}}{\text{volume of the solution in liters}}

Then, since the moles of solute is the same for both the mother solution and the diluted solution:

          \text{Molarity mother solution }\times\text{ volume mother solution}=\\\\=\text{Molarity diluted solution }\times\text{ volume diluted solution}

Substitute and solve for the molarity of the diluted solution:

           250mL\times 0.75M=(45mL+250mL)\times M\\\\\\M=\dfrac{250mL\times 0.75M}{295mL}=0.64M

8 0
3 years ago
A children's liquid cold medicine has a specific gravity of 1.23. If a child is to take 1.5 tsp in a dose, what is the mass (in
julia-pushkina [17]

Assume 1 tsp is approximately can hold 5 mL liquid.

Given the dose of medicine = 1.5 tsp

Converting 1.5 tsp to mL:

1.5 tsp * \frac{5 mL}{1 tsp} = 7.5 mL

Given the specific gravity of the medicine = 1.23

That means density of the medicine with respect to water will be 1.23

As the density of water is 1 g/mL

We can take density of the medicine to be 1.23 g/mL

Calculating the mass of medicine in grams:

7.5 mL * \frac{1.23 g}{mL} =9.225 g

9.225 g medicine is present in one dose.

3 0
3 years ago
Read 2 more answers
1) Click the orange button to "Break Bonds." What is needed in order to break a<br> chemical bond?
Valentin [98]
Energy is always required
3 0
3 years ago
Other questions:
  • Glucose (molar mass=180.16 g/mol) is a simple, soluble sugar. Glucose solutions are used to treat patients with low blood sugar.
    11·1 answer
  • Which chemical is produced in the highest volume in both the united states and the world?
    15·1 answer
  • Why are noble gasses ''inert''
    10·1 answer
  • Which of these is a characteristic of pseudoscience but not a characteristic of science? (4 points)
    9·1 answer
  • Why did evaporation cause the temperature to drop for each liquid? Explain exactlywhat happens on a molecular level to the parti
    6·1 answer
  • Explain how thermal energy added to a sample of matter affects the motion of the particles?
    14·1 answer
  • What is the molarity of a solution prepared by dissolving 10.0g of kno3 in 250 ml of solution
    10·1 answer
  • What happens during rusting
    9·2 answers
  • The image shows a diagram of a chloroplast, which captures light energy from thesun. In what type of cell would you expect to fi
    12·1 answer
  • In which of Piaget’s stages would a child be if the child has just developed object permanence?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!