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
IrinaK [193]
3 years ago
11

What do these observations tell you about the rate and direction of heat flow through each specific type of plastic?

Chemistry
1 answer:
Murljashka [212]3 years ago
3 0

Answer:

Heat is something you can't control

Explanation:

Plastic is something you could control like moving it around

You might be interested in
Please Final Exam Question What is the location of the highest energy electron in a neutral, ground-state sodlum atom?
enot [183]

Answer: third energy level

Explanation: In a sodium atom, the highest-energy principal energy level containing electrons is the third energy level, and that energy level contains one electron.

6 0
2 years ago
Read 2 more answers
If you know the number of protons, how do you find the number of electrons
iren [92.7K]

Answer:

to find the number of electrons you need the charge of the element.

4 0
3 years ago
1.
marin [14]
<span>Myoglobin, like most proteins, has a complex three dimensional structure that is formed from many twisted helices. There are more than one helix, and it does not look like beads on a straight piece of string. It is not branched.</span>
4 0
3 years ago
If the volume and Kelvin temperature are reduced by one-half what will happen to the pressure???
jolli1 [7]

Answer:

the pressure will decrease

Explanation:

6 0
3 years ago
The following thermochemical equation is for the reaction of sodium(s) with water(l) to form sodium hydroxide(aq) and hydrogen(g
ra1l [238]

Answer:

1) When 6.97 grams of sodium(s) react with excess water(l), 56.0 kJ of energy are evolved.

2) When 10.4 grams of carbon monoxide(g) react with excess water(l), 1.04 kJ of energy are absorbed.

Explanation:

1) The following thermochemical equation is for the reaction of sodium(s) with water(l) to form sodium hydroxide(aq) and hydrogen(g).

2 Na(s) + 2H₂O(l) ⇒ 2NaOH(aq) + H₂(g) ΔH = -369 kJ

The enthalpy of the reaction is negative, which means that 369 kJ of energy are evolved per 2 moles of sodium. The energy evolved for 6.97 g of Na (molar mass 22.98 g/mol) is:

6.97g.\frac{1mol}{22.98g} .\frac{-369kJ}{2mol} =-56.0kJ

2) The following thermochemical equation is for the reaction of carbon monoxide(g) with water(l) to form carbon dioxide(g) and hydrogen(g).

CO(g) + H₂O(l) ⇒ CO₂(g) + H₂(g)  ΔH = 2.80 kJ

The enthalpy of the reaction is positive, which means that 2.80 kJ of energy are absorbed per mole of carbon monoxide. The energy evolved for 10.4 g of CO (molar mass 28.01 g/mol) is:

10.4g.\frac{1mol}{28.01g} .\frac{2.80kJ}{mol} =1.04kJ

3 0
3 years ago
Other questions:
  • What will happen when substances go through chemical changes
    8·1 answer
  • What is the balanced equation for the combustion of sulfur
    9·1 answer
  • The wet cotton traps any HBr that escapes the reaction mixture. The trapping reaction is simply what happens when HBr dissolves
    9·1 answer
  • Which molecule is polar?A;CO2 B:PF3 C:CH4 D:BF3
    10·1 answer
  • Conserving the quality of available water is a high priority world-wide. There are many countries where the water supply is reac
    7·1 answer
  • 2 Equation on chemistry that I have been struggling with, needed some assistance
    8·1 answer
  • What is the wavelength of an electron with a mass of 9.109×10−31 kg and a velocity of 3.43×107 ms? Use 6.626×10−34kg m2s for Pla
    12·1 answer
  • 0.25 g na in moles please
    7·1 answer
  • What biological factors and/or actions<br> contribute to increases in entropy?
    7·1 answer
  • What is the citric acid concentration in a soda if it requires 32. 27 ml of 0. 0148 m naoh to titrate 25. 00 ml of soda?.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!