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
marin [14]
3 years ago
14

What is always included in a comparative investigation?

Chemistry
2 answers:
quester [9]3 years ago
7 0

Answer:it’s is B a scientific question not hypothesis

Explanation:

Taya2010 [7]3 years ago
6 0

Answer:

the answer is scientific question

Explanation:

You might be interested in
The heat of combustion of ethane is -337.0kcal at 25 degrees celsius. what is the heat of the reaction when 3g of ethane is burn
Ghella [55]

Answer:

Q = -33.6kcal .

Explanation:

Hello there!

In this case, according to the equation for the calculation of the total heat of reaction when a fixed mass of a fuel like ethane is burnt, we can write:

Q=n*\Delta _cH

Whereas n stands for the moles and the other term for the enthalpy of combustion. Thus, for the required total heat of reaction, we first compute the moles of ethane in 3 g as shown below:

n=3g*\frac{1mol}{30.08g}=0.1mol

Next, we understand that -337.0kcal is the heat released by the combustion of 1 mole of ethane, therefore, to compute Q, we proceed as follows:

Q=0.1mol*-337.0\frac{kcal}{mol}\\\\Q=-33.6kcal

Best regards!

8 0
2 years ago
When do acids follow the same naming conventions as other covalent componds
Valentin [98]
Jjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjgccccccccccccccccccccc
3 0
3 years ago
What mass of copper sulphate dissolves in 100g of water at 70 °C​
ValentinkaMS [17]

The answer mass of copper sulphate is

46g

6 0
3 years ago
The compound whose molecules have the highest average kinetic energy is?
KIM [24]

Answer:

C)

Explanation:

The warmer the molecules, the higher the average kinetic energy.

"As stated in the kinetic-molecular theory, the temperature of a substance is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles. This is registered as an increase in the temperature of the substance." -lumen learning

(I know for sure but what think... hope this helped)  

3 0
2 years ago
when applied to a dish soap makes grease soluble in water which explains correctly supports the role of intermolecular forces in
Temka [501]
The nonpolar end of a soap molecule attaches itself to grease.
5 0
2 years ago
Other questions:
  • What are mole ratios used for?
    7·1 answer
  • WILL MARK BRAINLIEST
    14·2 answers
  • In the molecule XeF2 the xenon uses which type of hybrid? O spºd O spºd? Osp? O sp3 Osp
    7·1 answer
  • Iron-56, Iron-54, and Iron-58 are all ____ of iron
    12·2 answers
  • What is the mass, in grams, of solute in 255mL of a 0.0525M solution of KMnO4 (MM =
    15·1 answer
  • I have no clue pls help
    15·1 answer
  • How many mL are in 2.5 quarts?<br> (1 L = 1.05 qt)
    15·1 answer
  • The heat of fusion for water is the amount of energy that must be absorbed for water to ___. a.evaporate b.freeze a.boil d.melt
    14·1 answer
  • The difference betweeen chemical cell and electrolytic cell ?​
    14·1 answer
  • Study the topographic map.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!