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
Korolek [52]
3 years ago
12

characteristics of matter that can be seen through direct observation such as density, melting point and boiling point

Chemistry
2 answers:
HACTEHA [7]3 years ago
6 0
This is true, not false.
fiasKO [112]3 years ago
4 0
This is not a question. It is a fact.
You might be interested in
A 100.0 g sample of sugar contains carbon, hydrogen, and oxygen. The sample contains 40.0 g of carbon and 53.3 g of oxygen. What
Lynna [10]

Answer:

I think this is it.

Explanation:

As all the mass of other molecules are given and we have to find the mass of hydrogen so total subtracted by carbon and oxygen.

6 0
3 years ago
Which weighs more?
timama [110]
<span>a.they both weight exactly the same.</span>
8 0
3 years ago
a dog is trained to sit and shake hands. These traits are most likely? a. inherited b. not inherited c. not acquired d. innate
Ksenya-84 [330]
<span>A dog is trained to sit and shake hands. These traits are most likely?

Answer: B not </span>acquired 

hope this helps
4 0
3 years ago
Using the following standard reduction potentials, Fe3+(aq) + e- → Fe2+(aq) E° = +0.77 V Ni2+(aq) + 2 e- → Ni(s) E° = -0.23 V ca
lina2011 [118]

<u>Answer:</u> The above reaction is non-spontaneous.

<u>Explanation:</u>

For the given chemical reaction:

Ni^{2+}(aq.)+2Fe^{2+}(aq.)\rightarrow 2Fe^{3+}(aq.)+Ni(s)

Here, nickel is getting reduced because it is gaining electrons and iron is getting oxidized because it is loosing electrons.

We know that:

E^o_{(Fe^{3+}/Fe^{2+})}=0.77V\\E^o_{(Ni^{2+}/Ni)}=-0.23V

Substance getting oxidized always act as anode and the one getting reduced always act as cathode.

To calculate the E^o_{cell} of the reaction, we use the equation:

E^o_{cell}=E^o_{cathode}-E^o_{anode}

E^o_{cell}=-0.23-0.77=-1.0V

Relationship between standard Gibbs free energy and standard electrode potential follows:

\Delta G^o=-nFE^o_{cell}

As, the standard electrode potential of the cell is coming out to be negative for the above cell. Thus, the standard Gibbs free energy change of the reaction will become positive making the reaction non-spontaneous.

Hence, the above reaction is non-spontaneous.

3 0
3 years ago
Please help im rlly stuck
atroni [7]

Answer:

A?

Explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following energy sources harnesses the power of waves?
    12·2 answers
  • Marie Curie discovered that an element called<br> gave off atomic energy.
    10·2 answers
  • The potential energy diagram shows the gain and loss of potential energy as water molecules decompose into hydrogen and oxygen.
    5·2 answers
  • How can scientists determine when a radioactive substance will no longer be dangerous
    5·1 answer
  • A hydrated blue copper(II) sulfate salt with a formula YCuSO4•XH2O is heated until it is completely white in color. The student
    12·1 answer
  • 1. Calculate the mass (in grams) of 6.15 moles of the following:
    13·1 answer
  • What mineral is least important to plant growth
    14·2 answers
  • ;_; help please i need help TwT
    12·2 answers
  • A person rides in an elevator.
    5·2 answers
  • A piece of metal with a mass of 17.1 g was dropped into a graduated cylinder containing 17.00 mL of water. The graduated cylinde
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!