1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Xelga [282]
4 years ago
9

What scientist described a positively charged core in the middle of the atom

Chemistry
1 answer:
hjlf4 years ago
8 0
Chadwick, Thompson, Rutherford, Bohr
You might be interested in
For the following reaction, 22.9 grams of nitrogen monoxide are allowed to react with 5.80 grams of hydrogen gas. nitrogen monox
ololo11 [35]

Answer:

1) Maximun ammount of nitrogen gas: m_{N2}=10.682 g N_2

2) Limiting reagent: NO

3) Ammount of excess reagent: m_{N2}=4.274 g

Explanation:

<u>The reaction </u>

2 NO (g) + 2 H_2 (g) \longrightarrow N_2 (g) + 2 H_2O (g)

Moles of nitrogen monoxide

Molecular weight: M_{NO}=30 g/mol

n_{NO}=\frac{m_{NO}}{M_{NO}}

n_{NO}=\frac{22.9 g}{30 g/mol}=0.763 mol

Moles of hydrogen

Molecular weight: M_{H2}=2 g/mol

n_{H2}=\frac{m_{H2}}{M_{H2}}

n_{H2}=\frac{.5.8 g}{2 g/mol}=2.9 mol

Mol rate of H2 and NO is 1:1 => hydrogen gas is in excess

1) <u>Maximun ammount of nitrogen gas</u> => when all NO reacted

m_{N2}=0.763 mol NO* \frac{1 mol N_2}{2 mol NO}*\frac{28 g N_2}{mol N_2}

m_{N2}=10.682 g N_2

2) <u>Limiting reagent</u>: NO

3) <u>Ammount of excess reagent</u>:

m_{N2}=(2.9 mol - 0.763 mol NO* \frac{1 mol H_2}{1 mol NO})*\frac{2 g H_2}{mol H_2}

m_{N2}=4.274 g

8 0
3 years ago
When stress is added to plates they can diverge, converge, or slip past one another True or False
zmey [24]
The answer is True i believe
5 0
3 years ago
Doing Science plz help
Murljashka [212]

Answer:

My guess is b or c but its robably wrong

Explanation:

I just also need points sorry <3

4 0
3 years ago
Read 2 more answers
Write the equation for the reaction described: A solid metal oxide, Ag2O, and hydrogen are the products of the reaction between
Harlamova29_29 [7]

Answer:

2Ag + H2O -----> Ag2O + 2H

Explanation:

2Ag + H2O -----> Ag2O + 2H is the equation of the reaction between metal and steam. Silver reacts with water (steam) forming silver oxide and hydrogen gas. When the metals react with steam it produces the solid metal oxide and hydrogen gas. On the surface o metals, a protective layer of aluminium oxide is formed that keeps water away from the metal so we can say that silver oxide and hydrogen are formed from the reaction of silver metal and steam.

8 0
3 years ago
How many grams is 10 moles of H2O?​
Elan Coil [88]

Answer:

So, 10 mole of water will weigh (18x10) = 180g.

5 0
2 years ago
Other questions:
  • A solid is placed in a solution. Which observation most likely indicates that a chemical reaction has occurred?
    14·1 answer
  • Zygote fungi spores can survive very harsh conditions
    12·1 answer
  • Sketch the structure of the nitrogen containing product that is formed when ethalymine reacts with water.
    6·1 answer
  • Energy transformations are constantly taking place. <br><br><br> True or False
    6·2 answers
  • All of the following are true about science except (2 points)
    15·1 answer
  • The hydrogen atom of one water molecule bonds with the oxygen atom of another water molecule. What is this bond referred to as?
    6·2 answers
  • In a certain industrial process involving a heterogeneous catalyst, the volume of the catalyst (in the shape of a sphere) is 10.
    6·1 answer
  • Mercury has a density of 13.6 grams/mL, what is this density in cg/L?
    9·1 answer
  • How many moles are in 16 grams of nitrogen molecule
    6·1 answer
  • Select oxidation numbers for the metals in each of the following coordination compounds. (a)K[Au(OH)4] (b)Na4[Fe(Cl)6]
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!