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3 years ago

1 point

Chemistry

1 answer:

Ne4ueva [31]3 years ago

3 0

Explanation:

The equation doesn't satisfy the Law of Conservation of Matter because There are more oxygen atoms after the reaction than there were before the reaction.

Therefore,

Option C is correct ✔

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Why is the Hubble telescope located in space? *

dolphi86 [110]

Answer: I’m not one hundred percent sure, but based off of what I know, I believe it is most likely “So it’s images aren’t distorted by the Earth’s atmosphere.”

Explanation:

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3 years ago

** ANSWER FAST I WILL MARK YOU BRAINLIEST AND GIVE 20 POINTS * * THIS IS A CHEMISTRY QUESTION SO PLEASE ONLY ANSWER IF YOU ARE G

Anna11 [10]

Answer:

$\boxed{\text{ B. Increase the temperature and decrease the pressure.}}$

Explanation:

Let's say the reaction is

R ⇌ 2P; endothermic

I like to consider heat as if it were a reactant or a product in a chemical equilibrium.

Another way to write the equilibrium would be

heat + R ⇌ 2P

According to Le Châtelier's Principle, when a stress is applied to a system at equilibrium, the system will respond in a way that tends to relieve the stress.

Let's consider each of the stresses in turn.

(i) Changing the temperature

If you want to increase the amount of product, you increase the temperature. The system will try to get rid of the added heat by shifting to the right, thus forming more product.

(ii) Changing the pressure

If R and P are liquids or solids or in aqueous solution, changing the pressure will have no effect. Something must be in the gas phase for a change in pressure to affect the position of equilibrium.

If P is a gas, the equilibrium is

heat + R ⇌ 2P(g)

Then, decreasing the pressure will produce more P. If you reduce the pressure, the system will respond by shifting to the right (the side with more gas molecules) to produce more P and bring the pressure back up

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3 years ago

Which structural feature will differ among an ester, an alcohol, and an aldehyde, regardless of which examples are being compare

AlekseyPX

Answer:

The functional group

Explanation:

A functional group defines a hydrocarbon. an ester the functional group is an O- alkyl group while that one of an alcohol is -OH group. An aldehyde is a functional group on its own.

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4 years ago

Read 2 more answers

The atomic nucleus contains two subatomic particles, the proton and the neutron. Atoms of different elements have different numb

Nostrana [21]

Answer:

The correct option is;

A) 1 to 1.

Explanation:

A stab;e nuclei requires the presence of a neutron to accommodate the the protons repulsion forces within the nucleus. An increase in the number of protons should be accompanied by an even more instantaneous increase in the number of neutrons to balance the forces in the nucleus. If there is an excess of neutrons or a deficit in protons a state of unbalance exists in the nucleus, which results to nuclear instability.

Therefore, the ratio of neutrons to protons is an appropriate way in foretelling nuclear stability and a stable nuclei is known to have a proton to neutron ratio of 1:1 and the number of protons and neutrons in the stable nuclei are usually even numbers.

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3 years ago

Rose reviews the EPA website and finds a recommendation to use cold tap water for cooking instead of starting with warm water fr

Nezavi [6.7K]

The Environmental Protection Agency suggests using cold tap water for cooking instead of starting with warm tap water is because our drinking water is made out lead pipes, which is a serious risk to health.

Explanation:

Lead is found throughout the environment in lead found in paint, air, soil, food and water.

Lead can pose a significant risk to your health if too much of it enters your body.
Lead enters drinking water primarily as a result of the corrosion.
It also contains in materials containing lead like in the water distribution system and household plumbing.

Lead in drinking rarely cause of lead poisoning can significantly increase a person’s total lead exposure.
In particular the exposure of infants who drink baby formulas and concentrated juices that are mixed with water.
EPA estimates that drinking water can make up to 20% or more of a person’s total exposure to lead which is dangerous.

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3 years ago