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zzz [600]
3 years ago
5

In 1945, a Raytheon engineer named Percy Spencer was fiddling with energy sources for radar equipment. While testing a new vacuu

m tube, he discovered that a chocolate bar he had in his pocket melted more quickly than he would have expected. He became intrigued and started experimenting by aiming the tube at other items, such as eggs and popcorn kernels. All of the things he aimed at responded as it they were being cooked. What can Percy Spencer infer from this observation?
A.) The energy source he was using had no effect on other substances.
B.) The energy source he was testing was able to cook foods.
C.) The energy source he was testing created heat.
D.) The energy source he was testing made substances respond as if they were being heated.
Chemistry
1 answer:
daser333 [38]3 years ago
5 0
Step by step explanation:
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vanillin is a flavoring agent in vanilla it has a mass percent composition of 61.15% c,5.3%H,31.55% o determine the empirical fo
Nutka1998 [239]

The empirical and molecular formulas will be  C_5H_5O_2 and  C_1_0H_1_0O_4 respectively.

<h3>Empirical and molecular formula</h3>

The compound contains C, H, and O.

C = 61.15/12 = 5.0958

H = 5.3/1 = 5.3

O = 31.55/16 = 1.9719

Divide by the smallest

C = 2.6

H = 2.7

O = 1

Thus, the empirical formula is C_5H_5O_2

Empirical formula mass = (12x5) + (1x5) + 16x2 = 97

n = 152.15/97 = 2

The molecular formula is C_1_0H_1_0O_4

More on molecular and empirical formulas can be found here: brainly.com/question/14425592

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6 0
2 years ago
12. In the modern periodic table, which of the following describes the elements with similar
V125BC [204]
B. same group I believe
8 0
3 years ago
Read 2 more answers
*CHEMISTRY*
Troyanec [42]

Answer:

1.54 liters.

Explanation:

If the liters increases by .27 for every 100ºC, then just multiply .27 by 2.

You'd then get 1.54, which is your answer.

Hope this helps!

8 0
3 years ago
Hydrogen gas + chlorine gas=hydrogen chloride skeleton equation
Dafna1 [17]

Answer: H2 + Cl2 => 2 HCl

Explanation: Each individual atom is already balanced.

8 0
3 years ago
PLEASE HELP THIS IS IMPORTANT. Answer the ones u know leave the ones u don’t. Be specific too and I’ll give u a brainlist/5 star
LekaFEV [45]

Answer:

1) Condensation.

2) See below.

Explanation:

1) The warmer water vapour from the surroundings came into contact with the cooler inner surface of the glass jar and condensed, forming the water droplets (water vapour) on the inside of the glass jar.

2) As condensation occurs, condensed water vapour will drip into the water solution in the glass jar, causing the water to rise in the glass jar.

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3 years ago
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