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
elena-s [515]
3 years ago
14

What do the arrows in the diagram tell you about the molecule?

Chemistry
1 answer:
maw [93]3 years ago
8 0

Answer:

A

Explanation:

<h2>#keep learning </h2><h3>hope makatulong</h3>
You might be interested in
A real gas behaves more like an ideal gas when the gas molecules are
Firlakuza [10]
The answer is D, far apart and have weak attractive forces between them. The ideal gas means that the volume of molecule and the forces between them can be ignored.
5 0
2 years ago
I Need help asap i will give brainliest
Flauer [41]

Answer:

It maintains a constant internal temperature.

Explanation:

Our body tries its hardest to maintain a constant internal temperature. This is because if we get to warm or cold it is unhealthy. If your body senses that it is getting to warm or cold it will try to correct itself.

3 0
3 years ago
5. I have a mixture of salt, water,
dolphi86 [110]

Iron is left in the filter and salt solution (salt and water) passes into the cup.

Hope it helps

7 0
2 years ago
Promethium-147 is sometimes used in luminescent paint. It has a half-life of 956.3 days. If 250 grams (g) of promethium-147 is u
Fantom [35]

Answer:

% = 76.75%

Explanation:

To solve this problem, we just need to use the expressions of half life and it's relation with the concentration or mass of a compound. That expression is the following:

A = A₀ e^(-kt)   (1)

Where:

A and A₀: concentrations or mass of the compounds, (final and initial)

k: constant decay of the compound

t: given time

Now to get the value of k, we should use the following expression:

k = ln2 / t₁/₂   (2)

You should note that this expression is valid when the reaction is of order 1 or first order. In this kind of exercises, we can assume it's a first order because we are not using the isotope for a reaction.

Now, let's calculate k:

k = ln2 / 956.3

k = 7.25x10⁻⁴ d⁻¹

With this value, we just replace it in (1) to get the final mass of the isotope. The given time is 1 year or 365 days so:

A = 250 e^(-7.25x10⁻⁴ * 365)

A = 250 e^(-0.7675)

A = 191.87 g

However, the question is the percentage left after 1 year so:

% = (191.87 / 250) * 100

<h2>% = 76.75%</h2><h2>And this is the % of isotope after 1 year</h2>
3 0
2 years ago
Read 2 more answers
Acid-Base Chemistry 1:Question 10
Alex777 [14]
The hydronium ions increase and the ph goes down.
6 0
2 years ago
Other questions:
  • Why does an object in motion stay in motion unless acted on by an unbalanced force? A) because forces are what stop and start mo
    11·1 answer
  • Please help(15 points)
    8·2 answers
  • A geologist is studying an area where stream erosion and deposition are the dominant surface processes. He notices that all of t
    5·1 answer
  • What compound is always part of an aqueous solution
    11·2 answers
  • Are single called bacteria
    5·2 answers
  • Calculate the energy required to freeze 378 grams of water to ice at 0°c​
    11·2 answers
  • Tanisha is mixing powdered orange drink mix into a cup. She wants to make sure the orange taste is strong, so she adds a lot of
    10·1 answer
  • How can you find the number of neutrons that are in an atom of an element
    15·1 answer
  • Three forms of radiation are also called ionizing radiation
    11·1 answer
  • Step 1: Pick your favorite physical activity This can be almost anything! Try to pick an activity that you like to participate i
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!