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
FromTheMoon [43]
3 years ago
14

Based on the enthalpy changes given for the reactions, which reactions are endothermic?

Chemistry
1 answer:
slamgirl [31]3 years ago
4 0

Explanation:

yan po sana makatulong

pa brainliest na din po thanks

You might be interested in
How many atoms of Lead are in a 62.7 g sample of Lead(II) permanganate?
Alexandra [31]

Answer:

\large \boxed {8.48 \times 10^{22}\text{ atoms}}

Explanation:

1 mol of Pb(MnO₄)₂contains 1 mol of Pb atoms.

1. Moles of Pb

\text{Moles of Pb} = \text{62.7 g Pb(MnO$_{4}$)}_{2} \times \dfrac{\text{1 mol Pb(MnO$_{4}$)}_{2}}{\text{445.07 g Pb(MnO$_{4}$)}_{2}}\\\\\times \dfrac{\text{1 mol Pb}}{\text{1 mol  Pb(MnO$_{4}$)}_{2}} = \text{0.1409 mol Pb}

2. Atoms of Pb

\text{Atoms of Pb} = \text{0.1409 mol Pb } \times \dfrac{ 6.022  \times 10^{23}\text{ atoms Pb }}{\text{1 mol Pb }}\\\\= \large \boxed {\mathbf{8.48 \times 10^{22}}\textbf{ atoms Pb }}

8 0
3 years ago
magine that an uncharged pith ball is brought into the electrostatic field of a charged rod. The side of the pith ball closest t
ivanzaharov [21]
Answer: option <span>D. be given a positive charge produced by the movement of electrons to the other end of the ball.
</span>

Explanation:


This phenomenon is called electrostatic induction.


The excess of negative charge on the end of the rod will repel the electrons on the side of the pith ball that have been approached to it.

Then the electrons on the pith ball will move far away from this end with it will be left an excess of positive charge.

In this way the rod has induced that the ball acquires a positive charge on one end and a negative charge on the other end.
<span />
4 0
3 years ago
What is the pressure exerted by 0.500 mold sample of nitrogen in a 10.0 L container at 20 degrees Celsius
Rudik [331]
I feel like I know this but I just can't answer it, sorry
6 0
4 years ago
Which of the following statements is an accurate description of vibrations?
Whitepunk [10]
The answer is A. Hope this helps!!!
4 0
3 years ago
Gravitational forces exerted on any two____in the universe
OleMash [197]

Answer:-

Gravitational forces exerted on any two <em><u>bodies</u></em> in the universe

Hope it helps you...

✅

6 0
3 years ago
Other questions:
  • Molarity of a salt water solution of "0.47" moles of NaCl dissolved in a volume of 0.25L
    5·1 answer
  • Label parts of the cell
    11·1 answer
  • How many electrons would you expect to find around an atom of scandium?
    5·1 answer
  • What makes a planet a terrestrial planet
    12·2 answers
  • The total energy of a system remains
    14·1 answer
  • How do you do this ?
    13·1 answer
  • What units do chemists normally use for density of liquids, solids and gas? Explain the
    14·1 answer
  • What is enamel give its use​
    6·2 answers
  • Predict whether an ionic compound will dissolve in a nonpolar solvent.
    14·1 answer
  • What is x if x - 2 =0​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!