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zimovet [89]
3 years ago
5

A woman lives several miles from this explosion. Which statement is MOST LIKELY true? A) She will see the explosion before she h

ears it. B) She will hear the explosion before she sees it. C) She won't be able to see the explosion, but she'll hear it. D) She won't be able to hear the explosion, but she'll see it.
Chemistry
2 answers:
LekaFEV [45]3 years ago
8 0
It depends on the explosion. If it is a large one such as an atomic bomb, the correct answer would be A as light travels faster than sound. If the explosion is smaller like a firework or there are other obstacles impeding visual contact, then the answer would be C because sound cannot be blocked as light can
kari74 [83]3 years ago
4 0

Answer: A

Explanation: :)))))_))

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Which option is a microscopic property that helps determine whether or not two substances will dissolve with each other?.
photoshop1234 [79]

The question is incomplete, the complete question is:

Which option is a microscopic property that helps determine whether or not two substances will dissolve with each other? (1 point)

A. state of matter

B. volume

C. molecular mass

D. polarity

The microscopic property that helps determine whether or not two substances will dissolve with each other is polarity.

A molecule is said to be polar if that molecule possesses a dipole moment. This also means that the molecule has a positive end and a negative end. A typical example of such a molecule is water.

In chemistry, the general rule is that like dissolves like. A polar substance dissolves a polar substance and vice versa.

Therefore we can see that, a microscopic property that helps determine whether or not two substances will dissolve with each other is polarity.

Learn more: brainly.com/question/1946554

7 0
3 years ago
What action leads to crystal formation in minerals?
ArbitrLikvidat [17]
I believe c is the right answer.
4 0
4 years ago
Read 2 more answers
WILL GIVE FREE BRAINLIEST EVERYDAY! DO NOT look up answers!! PLEASE FOLLOW DIRECTIONS ON FUTURE QUESTIONS OR WRONG!!! (Branliest
Maslowich

Answer:

  • <u>Purpose of Iodine:</u>

Iodine plays a vital role in thyroid health. Our thyroid gland, which is located at the base of the front of your neck, helps regulate hormone production. These hormones control your metabolism and heart health.

  • <u>Symbol:</u>

The symbol of Iodine is " I ".

  • <u>Atomic Mass:</u>

Atomic mass of Iodine is 126.90447 u

  • <u>Protons:</u>

No. of protons in Iodine is 53.

  • <u>Neutrons:</u>

No. of neutrons in Iodine is 74.

  • <u>Electrons:</u>

No. of electrons in Iodine is 53.

8 0
3 years ago
A sunscreen preparation contains 2.60 % by mass benzyl salicylate. If a tube contains 6.0 oz of sunscreen, how many kilograms of
Marrrta [24]

Answer : The mass of benzyl salicylate needed to manufacture 350 tubes of sunscreen are, 1.55 kg

Explanation :

As we are given that a sunscreen preparation contains 2.60 % by mass benzyl salicylate. That means, 2.60 grams of benzyl salicylate present in 100 g of solution.

First we have to convert the given mass from oz into kg.

Conversion used:

1 kg = 35.274 oz

or,

1oz=\frac{1}{35.274}kg

So,

6oz=\frac{6oz}{1oz}\times \frac{1}{35.274}kg=0.1701kg

Now we have to determine the mass of benzyl salicylate.

As, 100 g of solution contains mass of benzyl salicylate = 2.60 g

So, 0.1701 kg of solution contains mass of benzyl salicylate = \frac{2.60g}{100g}\times 0.1701kg=0.00442kg

Now we have to determine the mass of benzyl salicylate are needed to manufacture 350 tubes of sunscreen.

Mass of benzyl salicylate in 350 tubes of sunscreen = 0.00442 kg × 350

Mass of benzyl salicylate in 350 tubes of sunscreen = 1.55 kg

Thus, the mass of benzyl salicylate needed to manufacture 350 tubes of sunscreen are, 1.55 kg

6 0
4 years ago
Which of the following is true of the electrons in the Bohr model of an atom?
NARA [144]

Answer:

They exist at specific energy levels

Explanation:

6 0
3 years ago
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