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
Veseljchak [2.6K]
3 years ago
14

PLEASE hurry

Chemistry
2 answers:
gizmo_the_mogwai [7]3 years ago
8 0

Answer:

The answer is A.

Explanation:

lorasvet [3.4K]3 years ago
4 0

Answer:

A on edge

Explanation:

You might be interested in
What is the change in enthalpy when 11. 0 g of liquid mercury is heated by 15°c?
Vlad1618 [11]

Enthalpy change is the difference between energy used and energy gained. The change in enthalpy of the liquid mercury is 0.0231 kJ.

<h3>What is the enthalpy change?</h3>

Enthalpy change is the difference between the energy used to break chemical bonds and the energy gained by the products formed in a chemical reaction.

The enthalpy change is given by,

\rm \Delta H_{rxn} = \rm q_{rxn}

and,

\rm q = mc\Delta T

Given,

Mass of the liquid mercury (m) = 11.0 gm

The specific heat of mercury (c) = 0.14 J per g per degree Celsius

Temperature change = 15 degrees Celsius

Enthalpy change is calculated as:

\begin{aligned} \rm q &= \rm mc\Delta T\\\\&= 11 \times 0.14 \times 15\\\\&= 23.1 \;\rm J\end{aligned}

Therefore, 0.0231 kJ is the change in enthalpy.

Learn more about enthalpy change here:

brainly.com/question/10932978

#SPJ4

6 0
2 years ago
Using isotope, can we trace back again our ancestors? How?​
lidiya [134]

Answer:

<h2><em><u>The answer is yes, we can trace back again our ancestors by using isotope. These isotopes are not just there to just exist, some of them are also useful in different kind of field especially in history and medical</u></em>.</h2>
4 0
3 years ago
How many Sodium atoms are in 2.00 mols of Na2O
Anna71 [15]
There’s 1024 atoms of sodium in 2 moles of sodium
7 0
3 years ago
How does Earth's rotation affect ocean currents?
Tom [10]

Answer:

Our planet's rotation produces a force on all bodies moving relative to theEarth. ... The force, called the "Coriolis effect," causes the direction of winds and ocean currents to be deflected.

Explanation:

4 0
3 years ago
____________  was the first chemist to organize elements by atomic number
Natalija [7]

Answer:

Henry Moseley

Explanation: Passed with 98

4 0
3 years ago
Other questions:
  • What volume of hydrogen iodide is produced when 118 liters of hydrogen gas react according to the following reaction? (All gases
    8·1 answer
  • A chemist prepares a solution of sodium chloride(NaCl) by measuring out 25.4g of sodium chloride into a 100ml volumetric flask a
    5·2 answers
  • What is the mole ratio of oxygen to pentane
    9·2 answers
  • Help????????????????????
    10·1 answer
  • A 100.0g sample of tin is heated to 100.0 oC (Celsius) and is placed in a coffee cup calorimeter containing 150. g of water at 2
    6·1 answer
  • Given the reaction: N2 + O2 = 2NO for which the Keq at 2273 K is 1.2 x 10-4
    5·1 answer
  • What is X ? <br> A-ethanol <br> B-hydrogen<br> c-methane<br> D-uranium
    13·2 answers
  • What is the ratio of hydrogen molecules to ammonia molecules<br> in the following reaction
    12·1 answer
  • Is hydrogen the only non-metal positive ion?
    15·1 answer
  • Hi, pls can someone answer<br> I'll give brainliest
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!