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
konstantin123 [22]
3 years ago
7

Students learned that objects can exert forces on other objects without touching. Which three investigations will provide eviden

ce what they have learned. a measuring how close a soda can must be before it rolls toward a balloon that has been rubbed
Chemistry
1 answer:
irinina [24]3 years ago
6 0

Answer:

b

Explanation:

You might be interested in
How many neutrons does the element in group 15<br> and period 4 have ?
alexira [117]
The answer is 19 ahhahaha
4 0
3 years ago
1. Which of the following is NOT a cation?
Bezzdna [24]
Hey Madoudou


The correct answer is option B (sulfate)


The reason is because "Sulfate" has a negative sign.

In order for it to be a cation, it must have positive sign such as "iron(lll)ion


I hope this helps~
3 0
3 years ago
Why is it important to conserve or save our energy resources?
earnstyle [38]

answer:

  • reducing energy use limits the number of carbon emissions in the environment
  • conserving energy produces a higher quality of life. Reduced emissions result in cleaner air quality
  • it helps create a healthier planet, or at least helps sustain the resources we already have

explanation:

  • credits: online research
5 0
3 years ago
Which of the following describes a characteristic of water that makes it cohesive in nature?
kari74 [83]

Answer:

D is answer

Explanation:

8 0
3 years ago
Hydrocarbons, compounds containing only carbon and hydrogen, are important in fuels. The heat of combustion of cyclobutane, C4H8
Gennadij [26K]

Answer:

1. C4H8 + 6O2  -----> 4CO2 + 4H20

2. 3836.77 kcal

Explanation:

1. Balanced equation for the complete combustion of cyclobutane:

C4H8 + 6O2  -----> 4CO2 + 4H20

2. Heat of combustion of cyclobutane = 650.3 kcal/mol

    Molecular weight of cyclobutane, C4H8 = 56.1 g/mol

   Mole of C4H8 : mass of cyclobutane/Molecular weight of cyclobutane

  Mole of C4H8 = 331/56.1 = 5.9 mol

Energy released during combustion =  5.9 mol × 650.3 kcal/mol = 3836.77kcal

Therefore the energythat  is released during the complete combustion of 331 grams of cyclobutane is 3836.77kcal

8 0
3 years ago
Other questions:
  • Which of the following is an oxidation-reduction reaction?
    7·2 answers
  • Why foodstuff with acid components should not be stored in aluminium containers why?​
    13·1 answer
  • Household bleach which has a ph of 12.6 has more hydroxide (oh-) ions than lye which has a ph of 13.
    14·2 answers
  • Which household items would be considered a base? Select all that apply. *
    9·1 answer
  • Al2O3; The ___ show the ___ of each atom in the ___
    14·1 answer
  • What kind of electrical charges do protons,electrons, and neutrons have?​
    5·1 answer
  • In each of the following sets of elements, which one will be least likely to gain or lose electrons?
    5·1 answer
  • For the chemical reaction 2KI+Pb(NO3)2⟶PbI2+2KNO3 how many moles of lead(II) iodide (PbI2) are produced from 8.0 mol of potassiu
    14·1 answer
  • HELPPPPPPPP <br> I NEEED TO PASS
    7·2 answers
  • Balance the N-14(d,n) nuclear equation for radioisotope production in PET. This means to
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!