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
riadik2000 [5.3K]
2 years ago
14

Which of these steps is most likely to be part of an investigation about friction?

Chemistry
1 answer:
Serggg [28]2 years ago
4 0

Answer:

I want to say option C: Testing which surfa e is easier to slide a wooden block across.

Explanation:

I'm not 100 % sure though with my answer. I'm truly so very sorry if my answer is wrong. I tried my best.

You might be interested in
What type of energy is present in a barbell being lifted or a shot-put being thrown?
denpristay [2]
The type of energy used is kinetic energy. Kinetic energy is the energy of motion. 
8 0
2 years ago
Read 2 more answers
Please please !!! help me I’ve been doing this for 2 hours
MatroZZZ [7]

Answer:

3.7 x 10^23

is the right answer

6 0
2 years ago
The density of no2 in a 4.50 l tank at 760.0 torr and 25.0 °c is ________ g/l.
kap26 [50]
From  ideal  gas  equation   that   is   PV=nRT
n(number of  moles)=PV/RT
P=760 torr
V=4.50L
R(gas  constant =62.363667torr/l/mol
T=273 +273=298k
n  is   therefore   (760torr x4.50L) /62.36367 torr/L/mol  x298k  =0.184moles
the  molar  mass  of  NO2 is  46  therefore  density=  0.184  x  46=8.464g/l
7 0
2 years ago
Read 2 more answers
Which is a characteristic of mixtures?
siniylev [52]

Answer:

The correct answer is "They can be separated by physical processes"

Explanation:

The definition of Mixtures is <em>the blending of two or more dissimilar substances</em>.

Mixtures can be divided into those that are homogeneous or heterogeneous meaning that they can be distributed evenly or can't be distributed evenly.

6 0
3 years ago
Read 2 more answers
Methylamine (ch3nh2) is a weak base. at equilibrium, which expression equals the base dissociation constant (kb) of methylamine?
Molodets [167]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

Below are the choices that can be found elsewhere:

a. [CH3NH-] * [OH-] / [CH3NH3+] 
<span>b. [CH3NH3+] / ([CH3NH2] * [OH-]) </span>
<span>c. [CH3NH3+] * [OH-] / [CH3NH2] </span>
<span>d. [CH3NH3+] * [OH-] / [CH3NH2] * [H2O] 
</span>
The answer is C. 
4 0
3 years ago
Other questions:
  • When the reaction shown is correctly balanced, the coefficients are HNO3 + KOH → KNO3 + H2O
    12·1 answer
  • What is the name of the molecular compound SF 5? sulfur pentafluoride sulfur hexafluoride sulfur heptafluoride monosulfur tetraf
    11·1 answer
  • According to the Kinetic Molecular Theory, as the volume of a gas increases: the number of particle impacts per unit area increa
    14·2 answers
  • if a geologist found two fossils of different species buried next to each other in a rock layer, he or she might hypothezise tha
    8·1 answer
  • Newton's Third Law: "For every action, there is an equal and opposite reaction." ... The forces are the result of
    15·1 answer
  • Uranium-234 is unstable and undergoes two subsequent alpha emissions. What is the resulting nuclide from this transformation?
    10·1 answer
  • If one serving of a packaged frozen dinner contains 5.2 grams of saturated fat and the maximum recommended daily intake of satur
    13·1 answer
  • If 1.80 moles of NaCl was dissolved in enough water to make 3.60 L of solution, what is the Molarity?
    7·1 answer
  • Dating of rock layers which layer is the youngest f,A,s,h,b,d,c,e
    10·1 answer
  • During complete combustion, natural gas combines with oxygen to produce _____.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!