3 years ago

What is an elementary reaction?

1 answer:

8 0

Answer:

An elementary reaction is a chemical reaction in which one or more chemical species react directly to form products in a single reaction step and with a single transition state.

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What’s the molar mass of magnesium oxalate

maria [59]

Hey there!

Magnesium oxalate: MgC₂O₄

Mg: 1 x 24.305 = 24.305

C: 2 x 12.01 = 24.02

O: 4 x 16 = 64

----------------------------------

112.325 g/mol

The molar mass of magnesium oxalate is 112.325 g/mol.

Hope this helps!

8 0

4 years ago

BRAINLIESIT IF CORRECT 8

Oksi-84 [34.3K]

Answer:

I think ur answer would be refracted.

Explanation:

7 0

3 years ago

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A (12), B (8), C (4) out of these three elements, which two elements would show similar chemical properties?

fiasKO [112]

Answer: A and C

Explanation:

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3 years ago

The decomposition reaction of A to B is a first-order reaction with a half-life of 2.42×103 seconds: A → 2B If the initial conce

kipiarov [429]

Answer:

$t=23.5min$

Explanation:

Hello,

In this case, since the rate equation turns out as shown below due to the first-order kinetics:

$\frac{dC_A}{dt}=-kC_A$

Its integration results:

$\int\limits^{C_A}_{C_A^0} { \frac{dC_A}{C_A}} \,=-k\int\limits^t_0 {} \, dt\\ln(\frac{C_A}{C_A^0})=-kt$

However, the rate constant is computed by considering the given half-life time as follows:

$k=\frac{ln(2)}{t_{1/2}}=\frac{ln(2)}{2.42x10^3s}=2.86x10^{-4}s^{-1}$

In such a way, the required time in minutes to diminish the concentration by 66.8% of the initial turns out:

$C_A=0.668C_A^0$

$ln(\frac{0.668C_A^0}{C_A^0})=-kt$

$t=\frac{-ln(0.668)}{2.86x10^{-4}s^1}=1408.3s*\frac{1min}{60s} \\t=23.5min$

Best regards.

3 0

3 years ago

How would describe the characteristics of the urine

gogolik [260]

Urine has the color of pale yellow to deep amber. It is odorless and has a pH of 4.5-8.0

3 0

2 years ago