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
steposvetlana [31]
3 years ago
11

Please help!! Question on the picture

Chemistry
1 answer:
garik1379 [7]3 years ago
5 0

D) You need more information to figure this out.

The atom has three protons, so you know from the Periodic Table that the atom is lithium, Li.

However, there are two stable isotopes of Li.

The most common isotope has <em>four</em> neutrons, and the other one has three.

You have <em>no way of knowing</em> which isotope the diagram represents.

You might be interested in
18 ) Liquid A and Liquid B are clear liquids. They are placed in open containers and allowed to evaporate. When evaporation is c
arsen [322]

Answer:

Liquid A is a homogeneous mixture and Liquid B is a heterogeneous mixture

Explanation:

5 0
3 years ago
Describe what you should do to recover only the water from a sample of muddy water.<br>​
xz_007 [3.2K]

Answer:

By using a filter.

Explanation:

4 0
3 years ago
Read 2 more answers
How to clean a nose piercing with antibacterial soap?.
pychu [463]
Cleaning the nose piercing with a few simple steps will help prevent pre-existing conditions like infections, allergic reactions or skin damage. Performing regular maintenance will keep your piercing cleaner, more comfortable and easier to clean in the future.(Remember: If you have any problems I recommend visiting a doctor at your earliest convenience!) Antibacterial soap is great at reducing inflammation and clearing up infections. You should soak your nose in it regularly and use a clean cloth to gently wash away any particles that may have fallen into the septum.
5 0
2 years ago
C(S)+O2(g)--&gt;CO2(g)
soldi70 [24.7K]

<u>Answer:</u> The correct answer is 1.18 g.

<u>Explanation:</u>

We are given a chemical equation:

C(S)+O2(g)\rightarrow CO_2(g)

We know that at STP conditions:

22.4L of volume is occupied by 1 mole of a gas.

So, 2.21L of carbon dioxide is occupied by = \frac{1}{22.4L}\times 2.21L=0.0986mol of carbon dioxide gas.

By Stoichiometry of the above reaction:

1 mole of carbon dioxide gas is produced by 1 mole of carbon

So, 0.0986 moles of carbon dioxide is produced by = \frac{1}{1}\times 0.0986=0.0986mol of carbon.

Now, to calculate the mass of carbon, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Moles of carbon = 0.0986 mol

Molar mass of carbon = 12 g/mol

Putting values in above equation, we get:

0.0986mol=\frac{\text{Mass of carbon}}{12g/mol}\\\\\text{Mass of carbon}=1.18g

Hence, the correct answer is 1.18 g.

3 0
3 years ago
Read 2 more answers
Why steam distillation is usefull for thermally un stable compounds​
g100num [7]

The advantage of steam distillation over simple distillation is that the lower boiling point reduces decomposition of temperature -sensitive compounds.

4 0
3 years ago
Other questions:
  • Balance the following reaction.<br> C₂H6+ Cl2<br> C2H4Cl2 +<br> HCI
    11·1 answer
  • In the tollowing combustion reaction of acetylene (C2H2), how many lters of CO2 will be produced it 60 liters of 02 is used, giv
    6·1 answer
  • make the following follow the law of conservation of matter. ____ NaBr+____ CaF2--&gt;____ NaF+____ CaBr2
    6·1 answer
  • True or false: gases have the most kinetic energy out of the states of matter
    10·2 answers
  • A teacher brings in a cup of iced water and asks students to discuss if the system is exothermic or endothermic . Aida states th
    9·1 answer
  • Refer to the following balanced equation in which ammonia reacts with nitrogen monoxide to produce nitrogen and water. 4NH3(g) +
    13·1 answer
  • Periodic table the first row of elements fits in the period blank after the element blank the second row of elements fits in per
    13·1 answer
  • Which of these are characteristics of all arthropods? (Select all that apply.)
    14·1 answer
  • Clouds form when water vapor out of the air
    15·1 answer
  • Explain the term 'end point'?<br> What do you mean by a 1.0 M solution?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!