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
vichka [17]
3 years ago
15

Please somebody help!!!!!!!!!!!!!

Chemistry
1 answer:
natta225 [31]3 years ago
4 0

Answer:

1.Materials

2. Hypothesis

3.Question

4.Procedure

5.Further questions

6.Results and Data

7.Conclusion

Explanation:

You might be interested in
Which element is a metalloid?
kari74 [83]
Hi , the answer is silicon.
3 0
4 years ago
Why do we research<br> before conducting our<br> experiment?
Stella [2.4K]

Without doing research before doing an experiment you’d be at risk, example: Chemical reactions that COULD cause chemicals burning through human skin, or setting off an harmful explosion by mixing unknown chemicals together.

7 0
3 years ago
Is there a reaction between o2 and potassium iodide? If there is, please write it​
Soloha48 [4]

Answer:

Explanation:

Potassium iodide reacts with oxygen in presence of water to produce potassium hydroxide and potassium diiodoiodate(I) .

5KI + 2H₂O + O₂ =4 KOH + I₂ + K(II₂) .

7 0
3 years ago
Fred mixes a solution using two types of solutions: 0.60 liters containing 10% alcohol and 0.40 liters containing 35% alcohol. W
insens350 [35]

The alcohol concentration of the mixed solution is 20%

Simplification :

Based on the given condition, formulate :

35% ×0.40 + 0.6 ×10% ÷{ 0.4+0.6}

Calculate the product :\frac{0.14+0.06}{0.4 + 0.6}

Calculate the sum or difference : \frac{0.2}{1}

Any fraction with denominator 1 is equal to numerator : 0.2

Multiply a number to both numerator, denominator : 0.2 ×\frac{100}{100}

Calculate the product or quotient : \frac{20}{100}

A fraction with denominator equals to 100 to a percentage 20%.

How do you find the concentration of a mixed solution?

In general when your are mixing two different concentrations together first calculate number of moles for each solution (n=CV ,V-in liter) then add them together it will be total moles,then concentration of mixture will be = total moles / total volume(liter).

Learn more about concentration of alcohol :

brainly.com/question/13220698

#SPJ4

5 0
2 years ago
Veins carry what type of blood from all the parts of the body back to the heart
Nana76 [90]

Answer:

The veins (blue) take oxygen-poor blood back to the heart. Arteries begin with the aorta, the large artery leaving the heart. They carry oxygen-rich blood away from the heart to all of the body's tissues.

Explanation:

hope this helps

8 0
2 years ago
Read 2 more answers
Other questions:
  • Fe(s) + CuSO4(aq) &lt;===&gt; Cu(s) + FeSO4(aq)
    10·1 answer
  • Please help!!!!!!!!!!!!
    6·1 answer
  • How many moles of sodium will react with water to form sodium hydroxide and 4.0 moles of hydrogen?
    7·1 answer
  • Calculate the mass in grams of 5.14×10^24 molecules of propane. The chemical formula for propane is C3H8.​
    6·2 answers
  • In a science lab, Cash mixes two clear liquids together in a beaker. Bubbles are produced, and a white solid forms and settles t
    13·2 answers
  • What is the best description
    15·2 answers
  • Hydrogen chloride dissolved in water yields hydrochloric acid. What is the
    13·1 answer
  • What is the mass of 0.5 g/cm3
    10·1 answer
  • Characteristics of mixtures
    9·2 answers
  • What happens if the solvent solute attraction is greater than the salute solute attraction when to substances are mixed
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!