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3 years ago

sound travels 1,500 m/s through water at 25 degrees celciesunder these conditions how long would it take to travel 300m

Chemistry

1 answer:

lesya [120]3 years ago

4 0

Answer:

$v = s \div t$

$t = s \div v$

$t = 300 \div 1500 = 0.2s$

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How many grams of CO2 are produced from 18.6 g of oxygen gas?

Sladkaya [172]

Answer:

C + O2 ⇒ CO2

mole of O2: 18.6/32=0.58125= mole of CO2

⇒ gram of CO2: 0.58125*(12+32)=25.575

Explanation:

6 0

2 years ago

Using complete subshell notation (not abbreviations, 1s 22s 22p 6 , and so forth), predict the electron configuration of each of

dybincka [34]

Answer: The electronic configuration of the elements are written below.

Explanation:

Electronic configuration is defined as the representation of electrons around the nucleus of an atom.

Number of electrons in an atom is determined by the atomic number of that atom.

For the given options:

Option a: Carbon (C)

Carbon is the 6th element of the periodic table. The number of electrons in carbon atom are 6.

The electronic configuration of carbon is $1s^22s^22p^2$

Option b: Phosphorus (P)

Phosphorus is the 15th element of the periodic table. The number of electrons in phosphorus atom are 15.

The electronic configuration of phosphorus is $1s^22s^22p^63s^23p^3$

Option c: Vanadium (V)

Vanadium is the 23rd element of the periodic table. The number of electrons in vanadium atom are 23.

The electronic configuration of vanadium is $1s^22s^22p^63s^23p^64s^23d^3$

Option d: Antimony (Sb)

Antimony is the 51st element of the periodic table. The number of electrons in antimony atom are 51.

The electronic configuration of antimony is $1s^22s^22p^63s^23p^64s^23d^{10}4p^65s^24d^{10}5p^3$

Option e: Samarium (Sm)

Samarium is the 62nd element of the periodic table. The number of electrons in samarium atom are 62.

The electronic configuration of samarium is $1s^22s^22p^63s^23p^64s^23d^{10}4p^65s^24d^{10}5p^66s^24f^6$

Hence, the electronic configuration of the elements are written above.

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3 years ago

What is an ecosystem. A.It is a single plant and a single animal that live in given area B. it is a community of plants, animals

gavmur [86]

Answer:

B. it is a community of plants,animals and there physical surrounding.

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2 years ago

Which situation is the best analogy for the doppler effect?

Phoenix [80]

If you want an example then a car passing by a standing man is the best one !!

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2 years ago

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A fish tank measures 0.40 meter long by 0.20 meter wide by 0.30 meter high. What is the width of the tank in centimeters?

umka21 [38]

Well the width is 0.20 meters. Since there are a hundred centimeters in a meter, we just have to move the decimal point two times to the right to get a 20 centimeter width.

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3 years ago