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
iris [78.8K]
3 years ago
7

Ethan pushes a wooden box across a carpeted floor. Then he pushes the same box across a smooth marble floor. Why does Ethan find

it easier to push the box on the marble floor than on the carpeted floor?
Chemistry
1 answer:
Sholpan [36]3 years ago
3 0
Because there is less friction on the marble floor.
You might be interested in
Ranging from 0 to 14, a pH value indicates how acidic or basic a solution is. Which of these pH values would be a strong acid? *
Eduardwww [97]

Answer:

13 aaaàaàaaaaaaaaaßaaaaasssss

4 0
3 years ago
Read 2 more answers
PLEASE HELP! NO LINKS! CHEMISTRY!
Bingel [31]

Answer:

Solution A is 1,000 times more acidic than Sol. B

Explanation:

for pH values we use scientific notation:

-log10 c (where c is the hydrogen ion concentration) is used to notate pH value (think of it as a unit)

ie:

10^-2 is sol A 10^-5 is sol B

5-2 is 3

10^-3 = 1000

there's a diff of 1,000 between the solutions.

6 0
3 years ago
Read 2 more answers
A gas with a volume of 4.0L at a pressure of 205 kPa is allowed to expand to a volume of 12000 mL. What is the pressure in atmos
Leni [432]

Answer: The pressure in atmospheres is 0.674 in the container if the temperature remains constant.

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}     (At constant temperature and number of moles)

P_1V_1=P_2V_2  

where,

P_1 = initial pressure of gas  = 205 kPa

P_2 = final pressure of gas = ?

V_1 = initial volume of gas  = 4.0 L

V_2 = final volume of gas = 12000 ml = 12 L    (1L=1000ml)  

205\times 4.0=P_2\times 12  

P_2=68.3kPa=0.674atm        (1kPa=0.0098atm)

Therefore, the pressure in atmospheres is 0.674 in the container if the temperature remains constant.

8 0
3 years ago
Why must each atom of an element always have the same number of protons?
Yuliya22 [10]
Atoms do not always contain the same number of electrons and protons, although this state is common. When an atom has an equal number of electrons and protons, it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons). The total electric charge of the atom is therefore zero and the atom is said to be neutral. In contrast, when an atom loses or gains an electron (or the rarer case of losing or gaining a proton, which requires a nuclear reaction), the total charges add up to something other than zero.
8 0
3 years ago
What does the interquartile range represent?
Marizza181 [45]

Answer: C) middle 50 percent of the data

The interquartile range (IQR) spans from the first quartile Q1 to the third quartile Q3.

25% of the data is below Q1 and 75% of the data is below Q3. The gap between the two endpoints consists of 75-25 = 50 percent of the data, or half of the data.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Water contracts as it freezes at 0°C. Solid ice is less dense than liquid water. Liquid water expands with increasing temperatur
    9·1 answer
  • How did Dalton describe the relationship between atoms and elements? An element is made up of one kind of atom. Atoms are made u
    8·2 answers
  • What’s at the end of the leg bones?
    14·1 answer
  • True or False<br> Helium belongs to Noble Metals
    11·2 answers
  • Why did acid make our teeth rot?
    5·2 answers
  • A 3.50 L balloon contains 0.178 mol of gas. If 0.094 mol of gas is
    15·1 answer
  • Which two features are used to describe matter?<br> om
    10·1 answer
  • Empirical formula for C2H4O2
    5·1 answer
  • Both circles above represent the same area of air and the green dots represent air
    8·1 answer
  • 4. How many moles of atoms are present in 7 moles of sulfuric acid, H₂SO4?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!