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
oksano4ka [1.4K]
3 years ago
6

What is it I need help​

Chemistry
1 answer:
dybincka [34]3 years ago
3 0
Hi, i think the correct answer would be D .
You might be interested in
Which relationship can be used to aid in the determination of the heat absorbed by bomb calorimeter? 
NARA [144]

Answer:

ΔH = q_{p}

Explanation:

In a calorimeter, when there is a complete combustion within the calorimeter, the heat given off in the combustion is used to raise the thermal energy of the water and the calorimeter.

The heat transfer is represented by

q_{com} = q_{p}

where

q_{p} = the internal heat gained by the whole calorimeter mass system, which is the water, as well as the calorimeter itself.

q_{com}  = the heat of combustion

Also, we know that the total heat change of the any system is

ΔH = ΔQ + ΔW

where

ΔH = the total heat absorbed by the system

ΔQ = the internal heat absorbed by the system which in this case is q_{p}

ΔW = work done on the system due to a change in volume. Since the volume of the calorimeter system does not change, then ΔW = 0

substituting into the heat change equation

ΔH = q_{p} + 0

==> ΔH = q_{p}

5 0
3 years ago
Three-year-old Ben and his father are playing with a ball at the park. Ben's father throws a
GenaCL600 [577]

Answer:

His dad knows about gravity and, unless gravity was not working, anything with mass will be pulled back to earth

Explanation:

:)

8 0
3 years ago
Read 2 more answers
Use a chemical equation to show how aqueous hno3 fits the definition of an acid
Lunna [17]
An acid has several definitions one would be that it is a proton donor and an electron donor. Also, it said to produce an H+ ion when in solution. For nitric acid in solution, it dissociates into ions which are NO- ions and H+ ions. So, it must be an acid. It has a dissociation reaction:

HNO3 = H+ + NO3-
7 0
3 years ago
Please help soon!!! About Chemistry and noble gas notations.
Svetach [21]

Answer:

play video games all days

Explanation:

ggggggggghahahahahahaha

8 0
3 years ago
What is the part of the experiment that is measured? * 2 points control group constant independent variable dependent variable?
Arturiano [62]
The dependent variable is what is being tested. independent is what forces or effects the dependent
4 0
3 years ago
Other questions:
  • Which molecule is nonpolar?<br> (1) H2O (3) CO<br> (2) NH3 (4) CO2
    9·1 answer
  • A 2.20 mol sample of NO 2 ( g ) is added to a 3.50 L vessel and heated to 500 K. N 2 O 4 ( g ) − ⇀ ↽ − 2 NO 2 ( g ) K c = 0.513
    14·1 answer
  • Identify the precipitate(s) formed when solutions of na2so4(aq), ba(no3)2(aq), and nh4clo4(aq) are mixed.
    13·1 answer
  • Which mixture can be classified as a homogeneous mixture?
    14·1 answer
  • How many electrons would be transferred in either a voltaic or electrolytic cell that uses the following half reactions
    13·1 answer
  • Enter the appropriate symbol for an isotope of phosphorus-32 corresponding to the isotope notation AZX. Express your answer as a
    9·1 answer
  • The Atmospheric Pressure At This Altitude Is 461 MmHg. Assuming That The Atmosphere Is 18% Oxygen (by Volume), Calculate The Par
    11·1 answer
  • HELP 15-21 PLEASE!!!
    5·2 answers
  • Write the formula for zinc dichromate
    7·1 answer
  • Calcula el pH de estas soluciones: A-acido sulfúrico 0,0013 m B- hidróxido de socio 1,7 . 10 (-3) C- hidróxido de bario 2,2 . 10
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!