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Sidana [21]
3 years ago
7

Please helpppppppppp

Chemistry
1 answer:
o-na [289]3 years ago
8 0

Answer:b

Explanation:

causse

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What is the atomic number for an element with 6 neutrons and a mass number of 10
Whitepunk [10]

\bold{\huge{\blue{\underline{Answer}}}}

\bold{\underline{ Given :- }}

  • Atomic number of an element with 6 neutrons and a mass number of 10

\bold{\underline{ Let's \:Begin}}

\sf{We\: know\: that, }

  • Atomic number is the number of protons in the nucleus of an atom

\sf{Whereas ,}

  • Mass number is the sum of protons and neutrons in the nucleus of an atom.

\sf{We\: have \:number \:of \:neutrons = 6 }

\sf{ Mass\: number = 10 }

\bold{\underline{Therefore}}

\sf{ Mass\: number = Protons + neutrons}

\sf{ 10 = Protons + 6 }

\sf{ Protons = 10 - 6}

\sf{ Protons = 4 }

\sf{ Thus, \: the \: number \: of \: protons \: is \:4}

\bold{\underline{ Therefore,\:we\:know\:that, }}

\sf{ No\: of\: protons = Atomic \:number }

\sf{ 4 = Atomic \:number }

\sf { Hence,  \:atomic\: number\: of\: the\: element\: is\: 4}

5 0
2 years ago
Read 2 more answers
Consider the reaction between 15.0 mL of a 1.00 M aqueous solution of AgNO3 and 10.0 mL of a 1.00 M aqueous solution of K2CrO4.
Neporo4naja [7]

Answer:

Species present in the solution after complete reaction: K^+ ,CrO_4^- , Ag_2CrO_4 , K^+ ,NO_3^-

Explanation:

First balance the chemical equation,

2AgNO_3 + K_2CrO_4 =Ag_2CrO_4 + 2KNO_3

calculation of mili moles of each:

mili mole= volume in ml \times molarity

mili mole of AgNO3= 15mili mole;

mili mole of K2CrO4=10 mili mole;

From balance equation,

2 mili mole  of AgNO3 reacts with 1 mili mole of K2CrO4

hence 1 mili mole  of AgNO3 reacts with 0.5 mili mole of K2CrO4

15 mili mole  of AgNO3 reacts with 7.5 mili mole of K2CrO4

so only 7.5 milimole will be used in the reaction and 2.5 mili mole left in solution.

species present in the solution after complete reaction:

K^+ ,CrO_4^- , Ag_2CrO_4 , K^+ ,NO_3^-

K_2CrO4 , KNO_3 are soluble in water so it will dissociate in the solution

7 0
4 years ago
Please help me with number 4 and 5 on my study guide
Shtirlitz [24]

Answer:

help with problem 4

Explanation:

4. protons are equal to atomic numbers. neutrons are atomic mass minus atomic number. electrons are equal to protons.

5. I don't know, sorry.

5 0
2 years ago
What is the chemical formula of sulfur dioxide? A. SO B. SO2 C. SO3 D. S2O
irga5000 [103]
B. SO2 (Sulfur Dioxide)
7 0
4 years ago
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Can someone Help pls :)
s344n2d4d5 [400]

Answer:

D. I think

Explanation:

5 0
3 years ago
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