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
Strike441 [17]
3 years ago
7

Similar

Chemistry
2 answers:
Mariulka [41]3 years ago
4 0

Answer:   <u>A</u> and <u>C</u> mah dudes

Explanation:   Edgy 2020   <3

victus00 [196]3 years ago
3 0

Answer:

-Acetone is a covalent compound, while sodium chloride is an ionic compound

-covalent compounds have weak attractions between molecules, resulting in low melting points

Explanation:

You might be interested in
The environment needs to what for natural selection to occur
allsm [11]

Answer:

i know 3, reproduction, organisms, and variations in traits

Explanation:

5 0
3 years ago
Read 2 more answers
Pu is a nuclear waste byproduct with a half-life of 24,000 y. What fraction of the 239Pu present today will be present in 1000 y
olya-2409 [2.1K]

Answer:

0.9715 Fraction of Pu-239 will be remain after 1000 years.

Explanation:

\lambda =\frac{0.693}{t_{\frac{1}{2}}}

A=A_o\times e^{-\lambda t}

Where:

\lambda= decay constant

A_o =concentration left after time t

t_{\frac{1}{2}} = Half life of the sample

Half life of Pu-239 = t_{\frac{1}{2}}=24,000 y[

\lambda =\frac{0.693}{24,000 y}=2.8875\times 10^{-5} y^{-1]

Let us say amount present of  Pu-239 today = A_o=x

A = ?

A=x\times e^{-2.8875\times 10^{-5} y^{-1]\times 1000 y}

A=0.9715\times x

\frac{A}{A_0}=\frac{A}{x}=0.9715

0.9715 Fraction of Pu-239 will be remain after 1000 years.

7 0
3 years ago
What will describe a particle having 26electron,39nutron,28proton?
Artemon [7]

Answer:

Iron has 26 electrons. Potassium has 39 neutrons. Nickel has 28 protons.

Explanation:

4 0
2 years ago
Explore how the identity of reactants and products can be used to classify types of reactions
aliya0001 [1]
Reactants are substances that start a chemical reaction, and products are substances that are produced in the reaction hope this helps
8 0
3 years ago
Use the graph to answer the following questions. Which state has the highest level of air pollution particles for the year 2014?
Vikki [24]

Answer: Maryland, Wyoming, reduced burning of fossil fuels

Explanation: I took the test and got it right.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the molality of a solution in which 0.42 moles aluminum chloride has been dissolved in 4200 water ?
    15·1 answer
  • A soil’s texture is demanded by
    6·1 answer
  • Convert a pressure of 0.0248 mm Hg to the equivalent pressure in pascals (Pa).
    9·1 answer
  • Find the percent by mass of sodium chloride in a 1.20 M NaCl solution. The density of the solution is 1.06 g/mL
    15·2 answers
  • How many protons are in the nucleus of an atom with an atomic number of 15?
    8·1 answer
  • How many grams of water are produced if we react 3 moles of hydrogen with 3 moles of oxygen?
    7·1 answer
  • Joan performed a shadow puppet play for her younger brother by shining a flashlight on paper cutouts behind a curtain. What happ
    12·1 answer
  • Answer the question given in the photo below
    6·1 answer
  • Which best describes an element?
    14·2 answers
  • If the collected information showed that the temperature was 10°C and the wind speed was 75 mph, what type of weather would it
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!