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
Slav-nsk [51]
2 years ago
6

When electricity is produced from coal, the chemical energy in coal is first changed to thermal energy. True or False

Chemistry
1 answer:
Degger [83]2 years ago
3 0

It is true. because it... umm. uhh yea

You might be interested in
How do scientists use radioactive decay to date fossils and artifacts
liubo4ka [24]

Answer: Absolute dating is used to determine a precise age of a rock or fossil through radiometric dating methods. This uses radioactive minerals that occur in rocks and fossils almost like a geological clock. ... These isotopes break down at a constant rate over time through radioactive decay.

8 0
3 years ago
a sample of water with a mass of 648.00 kg at 298 K is heated with 87 kh of energy. the specific heat of water is 1 J-1 kg K-1.
Stels [109]

q = mCΔT

The correct specific heat capacity of water is <em>4.187 kJ/(kg.K)</em>.

ΔT = q/mC = 87 kJ/[648.00 kg x 4.187 kJ/(kg.K)] = 87 kJ/(2713 kJ/K) = 0.032 K

Tf = Ti + ΔT = 298 K + 0.032 K = 298.032 K


3 0
3 years ago
Read 2 more answers
Need help with balancing equations!
shusha [124]

Answer:

Fe2O3 + 3CO → 2Fe + 3CO2

Explanation:

the numbers in front are the numbers you need

4 0
2 years ago
Read 2 more answers
A ______ solution contains more dissolved solute than a saturated solution at the same temperature
NeTakaya

Answer:

i believe the answer is supersaturated  

Explanation:

5 0
3 years ago
The concentration of an additive in a standard sample of palm oil was measured 6 times and the following results were obtained:
Lerok [7]

In the data, 0.20 ppm is an outlier and this can be rejected if there is a 95% confidence level.

<h3>What is an outlier?</h3>

When analyzing data an outlier is a value that is abnormal or too different from other data. In the case presented 0.20 can be tagged as an outlier because other values such as 0.11, 0.12, 0.13, and 0.14 are similar while 0.20 is outside this range.

<h3>Should this piece of data be rejected?</h3>

The general rule is that if there is a 95% of confidence or higher you can reject an outlier, knowing the other data occurs 95% of the time, and therefore the outlier is improbable.

Based on this, you can reject an outlier if the confidence level is 95%.

Learn more about outlier in: brainly.com/question/9933184

7 0
2 years ago
Other questions:
  • Whats the answer of dependent variables and independent varies
    10·1 answer
  • Convert 15cm^3 to liters
    10·2 answers
  • One way of obtaining pure sodium carbonate is through the decomposition of the mineral trona, Na3(CO3)(HCO3)·2H2O. 2Na3(CO3)(HC
    5·1 answer
  • If you repeat an experiment and the results are very different from the results you got the first time, the next step would be t
    12·2 answers
  • - Which particles are found in the nucleus of an argon<br> atom?
    11·2 answers
  • A gold block with a mass of 325 g was heated from 22°C to 87°C. How much heat
    15·1 answer
  • Two plastic containers are washed in a dishwasher. One keeps its shape and the other becomes deformed.
    12·1 answer
  • Can someone help me pls
    6·1 answer
  • Which substance is most likely to dissolve in greater quantities in cold water? (1 point)
    10·1 answer
  • Balance the equation: H2O2 → H2O + O2
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!