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
yarga [219]
3 years ago
10

A solar eclipse will last 1 to _____ minutes.

Chemistry
2 answers:
horrorfan [7]3 years ago
8 0
1st qn - B
<span>2nd qn - A 
3 is no
</span>
stellarik [79]3 years ago
6 0
1st qn - B
2nd qn - A
Last qn - Yes
You might be interested in
Who knows this........​
kvv77 [185]

Answer:

D

Explanation:

This creates a gap that we call an oceanic trench

:)

4 0
2 years ago
Read 2 more answers
Help me please (~ ̄_ ̄)~​
Lubov Fominskaja [6]

Answer:

1.Temperature is the answer.

Explanation:

Hope this help!!

5 0
2 years ago
Read 2 more answers
A reaction of importance in the formation of smog is that between ozone and nitrogen monoxide described by O 3 ( g ) + NO ( g )
Aleksandr [31]

Answer:

(a) 7.11x10⁻⁴ M/s

(b) 2.56 mol.L⁻¹.h⁻¹

Explanation:

(a) The reaction is:

O₃(g) + NO(g) → O₂(g) + NO₂(g)   (1)

The reaction rate of equation (1) is given by:

rate = k*[O_{3}][NO]     (2)

<u>We have:</u>

k: is the rate constant of reaction = 3.91x10⁶ M⁻¹.s⁻¹

[O₃]₀ = 2.35x10⁻⁶ M

[NO]₀ = 7.74x10⁻⁵ M

Hence, to find the inital reacion rate we will use equation (2):

rate = k*[O_{3}]_{0}[NO]_{0} = 3.91 \cdot 10^{6} M^{-1}s^{-1}*2.35\cdot 10^{-6} M*7.74 \cdot 10^{-5} M = 7.11 \cdot 10^{-4} M/s  

Therefore, the inital reaction rate is 7.11x10⁻⁴ M/s

(b) The number of moles of NO₂(g) produced per hour per liter of air is:

t = 1 h

V = 1 L

\frac{\Delta[NO_{2}]}{\Delta t} = rate

\frac{\Delta[NO_{2}]}{\Delta t} = 7.11 \cdot 10^{-4} M/s*\frac{3600 s}{1 h} = 2.56 mol.L^{-1}.h{-1}

Hence, the number of moles of NO₂(g) produced per hour per liter of air is 2.56 mol.L⁻¹.h⁻¹

I hope it helps you!                                

5 0
3 years ago
Which elements are not likely to bond with other elements? and why
noname [10]

Answer:

Helium, Neon, Argon, Krypton, Xenon, Radon, and Oganesson

Explanation:

they have full outer shells

8 0
2 years ago
Perform the following operation and express the answer in scientific notation. 7.0x10^3x1.1x10^7
dimulka [17.4K]

Answer:

The answer is: 7.7\times10^{10}

Explanation:

Scientific notation is of the kind: a.bc\times10^{x}

The given calculation:

7.0\times10^{3}\times1.1\times10^{7}=(7\times1.1)\times10^{(3+7)}

=7.7\times10^{10}

Therefore, the answer in scientific notation is: 7.7\times10^{10}

4 0
3 years ago
Other questions:
  • 2.00 liters of hydrogen, originally at 25.0 °C and 750.0 mm of mercury, are heated until a volume of 20.0 liters and a pressure
    8·1 answer
  • Alpine Marmots are a type of rodent that have the ability to decrease their body activity to conserve food. These marmots most l
    12·1 answer
  • Why would a block of wood have more friction than a cube
    15·1 answer
  • Anota una alternativa o solución que se pueda realizar para evitar la escasez de agua:
    11·1 answer
  • An element belonging to the halogen family would be expected to have a ________ ionization energy and a ________ electron affini
    6·1 answer
  • The hybird orbitals used for bonding by xe in unstable xef2 molecules
    9·1 answer
  • The center part of an atom is called the
    10·1 answer
  • Which is an unreliable source?
    9·1 answer
  • How many grams are 1.20 x 1025 molecules of calcium iodide?
    15·1 answer
  • Student A correctly describes a chemical equilibrium is “reactant favored” and student B also correctly describes the same equil
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!