A star is born whenever nebula expands.. True or false?

Using the reactivity series explain why silver cannot produce hydrogen with water or dilute acid

sergeinik [125]

The more reactive the metal, the more rapid the reaction is. A metal below hydrogen in the reactivity series will not react with dilute acids. ... Hydrogen is always made when a metal reacts with water or a dilute acid.

8 0

3 years ago

How many seconds are there in a solar year (365.24 days)

blsea [12.9K]

Answer:

5 hours 49 minutes 16 seconds

7 0

3 years ago

Ammonia is manufactured in large amounts by the reaction N21g2 + 3 H21g2 ¡ 2 NH31g2 (a) How is the rate of consumption of H2 rel

melamori03 [73]

Answer:

$\large \boxed{\text{(a) three times; (b) twice}}$

Explanation:

1N₂ + 3H₂ ⟶ 2NH₃

$\text{rate} = -\dfrac{1}{1}\cfrac{\text{d[N$_{2}$]}}{\text{d}t}= -\dfrac{1}{3}\dfrac{\text{d[H$_{2}$]}}{\text{d}t} = +\dfrac{1}{2}\dfrac{\text{d[NH$_{3}$]}}{\text{d}t}$

(a) H₂ vs N₂

$-\dfrac{1}{1}\dfrac{\text{d[N$_{2}$]}}{\text{d}t}= -\dfrac{1}{3}\dfrac{\text{d[H$_{2}$]}}{\text{d}t}\\\\\dfrac{\text{d[H$_{2}$]}}{\text{d}t} = 3\dfrac{\text{d[N$_{2}$]}}{\text{d}t}\\\\\text{The rate of consumption of hydrogen is $\large \boxed{\textbf{three times}}$}\\\text{the rate of consumption of nitrogen.}$

(b) NH₃ vs N₂

$-\dfrac{1}{1}\dfrac{\text{d[N$_{2}$]}}{\text{d}t} = +\dfrac{1}{2}\dfrac{\text{d[NH$_{3}$]}}{\text{d}t}\\\\\dfrac{\text{d[NH$_{3}$]}}{\text{d}t} = -2\dfrac{\text{d[N$_{2}$]}}{\text{d}t}\\\text{The rate of formation of ammonia is $\large \boxed{\textbf{twice}}$}\\\text{the rate of consumption of nitrogen.}$

7 0

3 years ago

Compare the two structural formulas in each set. Do they represent the same compound, represent constitutional isomers or repres

Dennis_Churaev [7]

Answer:

(1). Both compounds are constitutional isomers.

(2). Both Compounds are constitutional isomers.

(3). Both compounds are identical isomers.

Explanation:

NB: Kindly check the attached picture for the diagram paired compounds.

The term 'constitutional isomers' means the isomers with the same molecular formula, the only difference is the way they are arrange. Constitutional isomers have the same number of elements in them, only their arrangements differs.

Constitutional isomers is also known as structural isomers and it is one of the types of isomers. The other one is stereo-isomers or spartial isomers which is also further divided.

Now, let's consider the paired chemical compounds.

(1). Both compounds are constitutional isomers.

Deduction: this are functional isomers as what differs is the arrangement of the C=O group.

(2). Both Compounds are constitutional isomers.

Deduction: the OH group is in the same position. Only the arrangement of carbon differs.

(3). Both compounds are identical isomers.

5 0

3 years ago

If a Ferrari, with an initial velocity of 10 m/s, accelerates at a rate of 50 m/s/s for 3 seconds, what will its final velocity

emmainna [20.7K]

Answer:

160 ms

Explanation:

3 0

3 years ago

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