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
Lubov Fominskaja [6]
3 years ago
7

Question 19 of 26

Chemistry
1 answer:
Alona [7]3 years ago
4 0

Answer:

3Mg(NO3)2(aq)+2Na3PO4(aq)⇒Mg3(PO4)2(s)+6NaNO3(aq)

Explanation:

You might be interested in
Which phrase best describes heat?
4vir4ik [10]

Answer:

C) the energy transferred between objects t different temperatures

3 0
3 years ago
PLEASE HELP! How does one determine how much of a molecule is produced in a reaction?
kozerog [31]
I believe the answer is C !
7 0
3 years ago
I need help, I don't understand the question
rjkz [21]
The awnser is probably B
7 0
4 years ago
Which environmental concern does not apply to wind power?
wolverine [178]
<h2>Answer:</h2>

The correct answer is option C which is chemical waste.

<h3>Explanation:</h3>
  • Wind is the renewable source of the energy. The air has energy in it which is used to run the generator to produce electrical energy from the mechanical energy of wind.
  • Wind energy is perfect in sense of pollution. It does not create any chemical waste because there is no conversion or production of chemical energy involve in this energy production.
  • While bats and birds death is caused by the fans used to run generators and a huge noise is also created by the wind energy production.
3 0
4 years ago
A 5-kg quantity of radioactive isotope decays to 2 kg after 10 years. Find the decay constant of the isotope.k = _____
Dvinal [7]

Answer:

k = -0.09165 years^(-1)

Explanation:

The exponential decay model of a radioactive isotope is generally given as;

A(t) = A_o(e^(kt))

Where;

A_o is quantity of isotope before decay, k is decay constant and A(t) is quantity after t years

We are given;

A_o = 5 kg

A(10) = 2kg

t = 10 years

Thus;

A(10) = 2 = 5(e^(10k))

Thus;

2 = 5(e^(10k))

2/5 = (e^(10k))

0.4 = (e^(10k))

In 0.4 = 10k

-0.9164 = 10k

k = -0.9164/10

k = -0.09165 years^(-1)

7 0
3 years ago
Other questions:
  • The subatomic particle that has. Positive charge and is found in the nucleus an atom is
    8·1 answer
  • What is the volume or density
    15·1 answer
  • Suppose of zinc chloride is dissolved in of a aqueous solution of ammonium sulfate. Calculate the final molarity of zinc cation
    9·1 answer
  • 1. How many atoms are in a water molecule?
    10·1 answer
  • What is the name of the element with the atomic number 79
    7·1 answer
  • Help please.... this is hard
    13·1 answer
  • Specific heat is defined as the amount of heat in what
    12·2 answers
  • Match the definitions on the left with the terms on the right.
    13·2 answers
  • 0.47 M KNO3 solution contains .757475 mol of KNO3 what is the volume
    15·1 answer
  • Pls fast pls due today pls pls I don’t wanna fail
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!