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
Deffense [45]
2 years ago
9

Please help me with this question

Chemistry
1 answer:
natka813 [3]2 years ago
3 0

Answer:

B

Explanation:

You might be interested in
A steam engine (assume a Carnot engine ) has an efficiency of 50.8%. If the waste heat has a temperature of 72.4 ◦C, what is the
Inessa05 [86]

Answer:

The temperature of the boiler is approximately 147.1 °C

Explanation:

A Carnot engine is an ideal engine that has the highest efficiency among all the engines because the second law of thermodynamics.That efficiency \eta  is:

\eta=1-\frac{T_{c}}{T_{h}}

with T_{h} the temperature of the hot reservoir (the boiler temperature) and T_{c} the temperature of the cold reservoir (the steam temperature). Solving for T_{h}:

T_{h}=\frac{-T_{c}}{\eta-1}=\frac{-72.4}{0.508-1}\approx147.1\,C

3 0
2 years ago
The process of splitting and Atom into two lighters atoms is called?
natima [27]
<span>The process of splitting and Atom into two lighters atoms is called </span>Nuclear Fission
5 0
3 years ago
WILL GIVE BRAINLIEST TO WHOEVER ACTUALLY GIVES RIGHT ANSWER. PLZ Which system of the human body allows oxygen to be dispersed to
IrinaK [193]

Answer:

circulatory system

Explanation:

it is what makes oxygen circulate

3 0
2 years ago
Read 2 more answers
What is the atom inventory for the following equation after it is properly balanced? ____NaOH + ____CuCl2 Imported Asset ____NaC
faltersainse [42]

Answer:

Reactants: Na = 2, O = 2, H = 2, Cu = 1, Cl = 2;

Products: Na = 2, Cl = 2, Cu = 1, O = 2, H = 2

Explanation:

NaOH + CuCL2 —> NaCl + Cu(OH)2

The balanced equation can be achieved by doing the following:

There are 2 oxygen and 2 hydrogen atom on the right side. This is balanced by putting 2 in front of NaOH as shown below:

2NaOH + CuCL2 —> NaCl + Cu(OH)2

This makes Na to be unbalanced. Now to balance Na, put 2 in front of NaCl as illustrated below

2NaOH + CuCL2 —> 2NaCl + Cu(OH)2

Now the equation is balanced.

Reactants: Na = 2, O = 2, H = 2, Cu = 1, Cl = 2

Products: Na = 2, Cl = 2, Cu = 1, O = 2, H = 2

4 0
3 years ago
Explain how lithium atom is positive charge​
yulyashka [42]
Lithium is an element that has an electronic configuration of 2,1. So when forming bonds, it tries to release one of its electrons in the last shell to reach the octet state. Normally when atoms release electrons they get positive charge since the number of protons which bear positive charge, is higher than number of electrons which bear negative charge. So when reaching its octet state, lithium gains positive charge!

Hope this helps! Tbh am not good at explaining. If u have any doubts, ask me!
4 0
2 years ago
Other questions:
  • What is Avogadro's number, and why is it useful? (3 points)
    13·1 answer
  • a.) What is the minimum uncertainty in an electron's velocity (Δmin) if the position is known within 13 Å? b.) What is the minim
    15·1 answer
  • The rapid movement of gases molecules can be explained because gases have ___ size particles and exert _____ attraction for othe
    7·2 answers
  • What cell process occurs in the mitochondria?
    15·1 answer
  • What contribution did Robert Boyle make towards the field of chemistry
    15·1 answer
  • 6. Barium sulfate and and sodium sulfate react in a double displacement reaction. If the
    8·1 answer
  • Describe the cause of atomic emission spectrum of an element
    10·1 answer
  • Which pair of objects is experiencing the greatest gravitational force
    9·2 answers
  • Please follow me thanku​
    12·1 answer
  • The ΔH°f of gaseous dimethyl ether (CH₃OCH₃) is -185.4 kJ/mol; the vapor pressure is 1.00 atm at -23.7°C and 0.526 atm at -37.8°
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!