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grin007 [14]
3 years ago
7

Which option describes a similarity and a difference between isotopes of an element? A. same atomic number; different number of

protons B. same number of protons; different atomic number C. same atomic number; different mass number D. same mass number; different atomic number E. same number of neutrons; same number of protons
Chemistry
2 answers:
ololo11 [35]3 years ago
6 0

Answer:

c

Explanation:

siniylev [52]3 years ago
5 0

The answer is A. same atomic number; different number of protons

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SVETLANKA909090 [29]

Answer: Gas. Gas vibrates and move freely at high speeds.

Explanation:

4 0
3 years ago
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Why should you always condition a buret before running a titration?.
Alex Ar [27]

Answer:

Conditioning two or three times will insure that the concentration of titrant is not changed by a stray drop of water.

Explanation:

"Check the tip of the buret for an air bubble. To remove an air bubble, whack the side of the buret tip while solution is flowing".

5 0
2 years ago
How many grams of NH3 can be produced from 2.51 mil of N2 and excess H2 ?
salantis [7]

Answer:

85.34g of NH3

Explanation:

Step 1:

The balanced equation for the reaction. This is given below:

N2 + 3H2 —> 2NH3

Step 2:

Determination of the number of moles of NH3 produced by the reaction of 2.51 moles of N2. This is illustrated below:

From the balanced equation above,

1 mole of N2 reacted to produce 2 moles of NH3.

Therefore, 2.51 moles of N2 will react to produce = (2.51 x 2)/1 = 5.02 moles of NH3.

Therefore, 5.02 moles of NH3 is produced from the reaction.

Step 3:

Conversion of 5.02 moles of NH3 to grams. This is illustrated below:

Molar mass of NH3 = 14 + (3x1) = 17g/mol

Number of mole of NH3 = 5.02 moles

Mass of NH3 =..?

Mass = mole x molar Mass

Mass of NH3 = 5.02 x 17

Mass of NH3 = 85.34g

Therefore, 85.34g of NH3 is produced.

3 0
3 years ago
Can someone help me with this please!
pashok25 [27]
Nit<u>ITE</u><u /> is NO<u>2</u><u />
nitr<u>ATE</u><u /> is NO<u>3</u><u />
5 0
3 years ago
I need the answer in 15 mins<br> pls urjent
Sedbober [7]

Answer:

I don't know I'm sorry I will tell you another answer asks me to

7 0
3 years ago
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