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Vesna [10]
2 years ago
15

How many millimeters are in 4.69 miles? Show work!

Chemistry
2 answers:
KengaRu [80]2 years ago
6 0

Answer:

7547823.36 millimeters

Explanation:

hope this is helpful :)

In-s [12.5K]2 years ago
5 0

Answer: 7885785.6 millimeters

Explanation:

1 mile = 1609344 millimeters

1609344 x 4.9 = 7885785.6 mm

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3 years ago
[15 Points, Stoichiometry and Gases]
KiRa [710]

The reaction is

CaC₂(s) + 2H₂O (l) -----> Ca(OH)₂ (s) + C₂H₂ (g) ​

As we have data of gas ethyne (or acetylene), C₂H₂

We can calculate the moles of acetylene and from this we can estimate the mass of calcium carbide taken

the moles of acetylene will be calculated using ideal gas equation

PV =nRT

R = gas constant = 0.0821 Latm/molK

T = 385 K

V = volume = 550 L

P = Pressure = 1.25 atm

n = moles = ?

n = PV /RT = 1.25 X 550 / 0.0821 X 385 = 21.75 mol

As per balanced equation these moles of acetylene will be obtained from same moles of calcium carbide

moles of calcium carbide = 21.75mol

molar mass of CaC₂ = 40 + 24 = 64

mass of CaC₂ = moles X molar mass = 21.75 X 64 = 1392g

6 0
3 years ago
Read 2 more answers
A car travels at 35.0 mi/hr. How far has it gone in 2455 seconds?
Vika [28.1K]

Answer:

<h3>The answer is 23.8 miles</h3>

Explanation:

The distance covered by an object given it's velocity and time taken can be found by using the formula

<h3>distance = velocity × time</h3>

From the question

velocity = 35.0 mi/hr

time = 2455 s = 0.68 hr

We have

distance = 35 × 0.68

We have the final answer as

<h3>23.8 miles</h3>

Hope this helps you

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Short Answer: Ultraviolet vision helps bees help detect UV flower colors

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3 years ago
Stage in a star's evolution formed as the core of a main sequence star uses up its helium and the outer layers escape into space
Lena [83]

Answer: the answer is white dwarf

Explanation:

3 0
3 years ago
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