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
Sauron [17]
2 years ago
5

Question 4

Chemistry
1 answer:
ruslelena [56]2 years ago
7 0

Answer:

Physical change

Explanation:

Brainliest would be appreciated

You might be interested in
Why is environmental science called interdisciplinary
Xelga [282]
Because it relates to more than one branch of knowledge. It combines more than one academic disiplines.
8 0
3 years ago
Difference between element and radical​
Romashka-Z-Leto [24]

Answer:

A radical is a group of atoms behaving as a unit in a number of compounds where as an element is a species of atoms having the same number of protons in their atomic nuclei.

Explanation:

6 0
3 years ago
Read 2 more answers
If distance, d, is proportional to time, t, and at time t =2.00 seconds, the distance is 6.20 m, find the distance when t = 3.50
Allushta [10]
At 3.5s the distance would be 10.85

Find 1/4th of 2.00 and add that to 6.2
5 0
3 years ago
What is the difference between an atom and an element?
Travka [436]

Answer:

A particular atom will have the same number of protons and electrons and most atoms have at least as many neutrons as protons. An element is a substance that is made entirely from one type of atom

Explanation:

so In simple terms an atom contains Protons and Electrons and can be found in an Element, but an element comprises of atoms which come together to form up that particular Element

4 0
3 years ago
Wine goes bad soon after opening because the ethanol ch3ch2oh in it reacts with oxygen gas o2 from the air to form water h2o and
lilavasa [31]
The balanced chemical equation of the reaction described above is,

                            C2H6O + O2 --> H2O  + C2H4O2

If we have 3.84 g of oxygen, we divide by its molar mass.
 
                               n = (3.54 g Oxygen gas) x (1 mole O2/ 32 g O2)
                                 n = 0.11 moles O2

Using ratio and proportion,

               number of moles of ethanol = (0.11 moles O2) x (1 mole C2H6)
                                                  = 0.11 moles C2H6

Then, we multiply the calculated value to its molar mass, 46 grams /mol.
                    mass of ethanol = (0.11 mol) x (46 grams / mol)
                                                = <em>5.06 grams</em>
8 0
3 years ago
Other questions:
  • Question 8 Lithium is a solid phase of lithium still unknown to science. The only difference between it and ordinary lithium is
    9·1 answer
  • Making homemade ice cream is one of life's great pleasures. fresh milk and cream, sugar, and flavorings are churned in a bucket
    15·2 answers
  • Sayid recorded the temperatures of four substances in a chart.
    13·1 answer
  • At 100 degrees celsius, the vapor pressures for water, methanol, and ethanol are 760, 2625, and 1694 torr, respectively. which c
    12·1 answer
  • Which of the following is the correct formula for nitrous acid? a) HNO b) HN2O c) N2O d) HNO2 e) HNO3
    9·1 answer
  • The exhaust gas from an automobile contains 1.5 percent by volume of carbon monoxide. What is the concentration of CO in mg/m' a
    12·1 answer
  • What is the pressure of 0.5 mol of nitrogen gas in a 5 L container at 203 K
    9·1 answer
  • 20 mL of 80°C water is mixed with 20 mL of 0°C water in a perfect calorimeter. What is the final temperature?
    7·1 answer
  • If a sample of sodium chloride with a mass of
    5·1 answer
  • Is cannabinol soluble in 1-octanol? <br> Why or why not?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!