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
babunello [35]
3 years ago
5

A car drives with constant speed of 112km/h. How long will it take to travel to distance of 56 kilometers?

Chemistry
1 answer:
SSSSS [86.1K]3 years ago
3 0

112 km is travelled by car in 60 minutes

1 km is travelled by car in 60/112 minutes

56 km is travelled by car in 60/112*56 = 30 minutes  = 0.5 hours

Explanation:

You might be interested in
At 570. mm Hg and 25°C, a gas sample ne (in mm Hg) at a volume of 1250 mL and a temperature of 175°C and 25°C, a gas sample has
maw [93]

Answer:

final pressure ( P2) = 467.37 mm Hg

Explanation:

ideal gas:

  • PV = nRT

∴ P1 = 570 mm Hg * ( atm / 760 mm Hg ) = 0.75 atm

∴ T1 = 25 ° C = 298 K

∴ V1 = 1.250 L

∴ R = 0.082 atm L / K mol

⇒ n = P1*V1 / R*T1

⇒ n = (( 0.75 ) * ( 1.25 )) / (( 0.082 ) * ( 298 ))

⇒ n = 0.038 mol gas

∴ T2 = 175 °C ( 448 K )

∴ V2 = 2.270 L

⇒ P2 = nRT2 / V2

⇒ P2 = (( 0.038 ) * ( 0.082 ) * ( 448 )) / 2.270

⇒ P2 = 0.615 atm * ( 760 mm Hg / atm ) = 467.37 mm Hg

5 0
3 years ago
How many moles are in 3.4 x 10-7 grams of Silicon dioxide, SiO2?
Varvara68 [4.7K]

Answer:

Number of moles = 0.057 × 10⁻⁷  mol

Explanation:

Given data:

Mass of SiO₂ = 3.4 × 10⁻⁷ g

Number of moles = ?

Solution:

Number of moles = mass/molar mass

Molar mass of SiO₂ = 60 g/mol

by putting values,

Number of moles =  3.4 × 10⁻⁷ g / 60 g/mol

Number of moles = 0.057 × 10⁻⁷  mol

8 0
2 years ago
Can someone answer this?
yulyashka [42]

No se si aun necesitas ayuda o no

3 0
2 years ago
What type of elements generally bond covalently, and how do they satisfy the octet rule?
Alex Ar [27]

Answer:

Covalent, or, elements on the right side of the ladder (on the periodic table). Covalent compounds satisfy the octet rule by sharing electrons.

3 0
3 years ago
Which of the following experiments would best test viscosity?
Juli2301 [7.4K]
C. pouring honey on a plate so the density of thickness and stickyness would 
be the highest
4 0
3 years ago
Other questions:
  • Onetaq standard reaction buffer fungal metagenomics
    15·1 answer
  • Cual de los estados de agregacion es mas abundante en el universo
    5·1 answer
  • What is the average speed vavg of the molecules in the gas? express your answer numerically to three significant digits?
    6·1 answer
  • Which Of These Elements Has Four Valence Electrons? Hafnium Radon Silicon Sulfur
    7·2 answers
  • Certain metals react with acids to form hydrogen and salts of that metal. When sulfuric acid and aluminum combine, hydrogen gas
    6·1 answer
  • What is the electron configuration called that has 18 electrons in the outer energy level and all of the orbitals filled?
    13·1 answer
  • I need the name of the substance showing the steps: N2H4
    12·1 answer
  • A female spinach plant with flat (Ff) leaves is crossed with (pollination and fertilization occur) a male spinach plant with cri
    9·1 answer
  • Heat transfer through direct contact between molecules
    13·1 answer
  • A sample of ch4o with a mass of 32.0 g contains __________ molecules of ch4o. group of answer choices 5.32 ´ 10-23 1.00 1.88 ´ 1
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!