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rewona [7]
3 years ago
15

According to Reference Table V, which is the strongest Brönsted base?

Chemistry
1 answer:
iogann1982 [59]3 years ago
3 0

Answer:

B

Explanation:

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A wave has 9.2 x 10-22 ) of energy. What is its wavelength?
blagie [28]

Answer:

\lambda=2.2x10^{-4}m

Explanation:

Hello!

In this case, since the relationship between energy and wavelength is defined via the speed of light and the Planck's constant as shown below:

e=\frac{c*h}{\lambda}

Since c stands for the speed of light and h for the so-called Planck's constant, we can compute the wavelength as follows:

\lambda=\frac{c*h}{e}=\frac{3.0x10^8m/s*6.626x10^{-34}J*s}{9.2x10^{-22}J}\\\\\lambda=2.2x10^{-4}m

Best regards!

3 0
3 years ago
Which of the following is fact-based science rather than part of a belief system
makkiz [27]

Answer:

c. chemistry

Explanation:

it uses science and math which are based on facts.

6 0
3 years ago
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Click the DeltaH is an Extensive Property button within the activity, and analyze the relationship between the two reactions tha
DaniilM [7]

Answer:

∴ΔH₂ = - 12,258 KJ

Explanation:

Enthalpy:

Enthalpy is a property of a thermodynamic system. Enthalpy of a system is equal to the sum of internal energy of the system and presser times volume of the system.

    The heat absorbes or releases in a closed system is the change of enthalpy of the system.

Given reactions are:

Reaction 1: C₃H₈(g)+5O₂(g)→ 3CO₂(g)+4H₂O,                 ΔH₁= - 2043 KJ

Reaction 2: 6C₃H₈(g)+30 O₂(g)→ 18 CO₂(g)+24 H₂O,     ΔH₂=?

Take a look at reaction 1 and reaction 2, the only difference is that 1 molecule of C₃H₈ is combusted in reaction 1 and 6 molecules of C₃H₈  is  combusted in reaction 2.

We can think the reaction 2 as occurring 6 different container and each containers contains 1 molecule of C₃H₈. The enthalpy is an extensive property. Total enthapy of the 6 containers is = 6×(-2043 KJ)

                                                                            = - 12,258 KJ

∴ΔH₂ = - 12,258 KJ

6 0
3 years ago
A(n) ____________________ is a compound that turns litmus blue and is often found in soaps and detergents.
ehidna [41]
B. base
_______________________________________________________________
8 0
3 years ago
OK! this is for the weebs :D
maw [93]

Answer:

Explanation:3

4 0
3 years ago
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