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4 years ago

Why is the sun up sometimes but not other times?

1 answer:

6 0

Answer: The Sun appears to move across the sky because the Earth rotates on its axis. ... When where you are is pointed toward the Sun, it is day. Then the Earth rotates you away from the Sun, and it is night.

Explanation:

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What is the meaning of weight?

Lostsunrise [7]

Weight is properly defined as how much gravity acts upon an object.
I hope this helps!

4 0

3 years ago

Read 2 more answers

Classify the following reaction according to the five basic reaction types:

joja [24]

Answer:

a. single replacement

Explanation:

Chemical equation:

Cd + H₂SO₄ → CdSO₄ + H₂

In given reaction Cd replace the hydrogen and form cadmium sulfate and hydrogen gas.

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Other options are incorrect because,

Combustion:

In combustion reaction substances are burn in the presence of oxygen and form carbon dioxide and water.

Synthesis reaction:

It is the reaction in which two or more simple substance react to give one or more complex product.

A + B → AB

Double replacement:

It is the reaction in which two compound exchange their ions and form new compounds.

AB + CD → AC +BD

8 0

3 years ago

How many molecules are in 5.00 grams of NH3

leva [86]

Answer:

0.293590565643325

8 0

4 years ago

To make a softball bat, a block of wood is carefully crafted into a shape that will allow a

Iteru [2.4K]

‍♂️4️⃣gshjrhdbsbdjsjdbsnebrbsbxinanevrskiswnnwsjjebrhedifi

4 0

3 years ago

Draw the most stable resonance structure for the intermediate in the electrophilic aromatic bromination of aniline, anisole, and

ASHA 777 [7]

Answer:

Here's what I get

Explanation:

(a) Intermediates

The three structures below represent one contributor to the resonance-stabilized intermediate, in which the lone pair electrons on the heteroatom are participating (the + charge on the heteroatoms do not show up very well).

(b) Relative Stabilities

The relative stabilities decrease in the order shown.

N is more basic than O, so NH₂ is the best electron donating group (EDG) and will best stabilize the positive charge in the ring. However, the lone pair electrons on the N in acetanilide are also involved in resonance with the carbonyl group, so they are not as available for stabilization of the ring.

(c) Relative reactivities

The relative reactivities would be

C₆H₅-NH₂ > C₆H₅-OCH₃ > C₆H₅-NHCOCH₃

4 0

3 years ago