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Temka [501]
3 years ago
12

The atomic size of zirconium is smaller than

Chemistry
1 answer:
d1i1m1o1n [39]3 years ago
5 0

Answer:

b

Explanation:

because hahamaskdjdjskskskskkssksksks

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The atomic mass of hydrogen is one. True False
mafiozo [28]

Answer:

It's true :) Hope that helps

8 0
3 years ago
Read 2 more answers
CaO + H2O -> Ca(OH)2
yawa3891 [41]

The % yield of Ca(OH)₂ : 62.98%

<h3>Further eplanation </h3>

Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated

General formula:

Percent yield = (Actual yield / theoretical yield )x 100%

An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients

Reaction

CaO + H₂O ⇒ Ca(OH)₂

mass CaO= 4.2 g

mol CaO(MW=56,0774 g/mol) :

\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{4.2}{56,0774 g/mol}\\\\mol=0.075

mol Ca(OH)₂ based on mol CaO

mol ratio CaO : Ca(OH)₂,= 1 : 1, so mol Ca(OH)₂ = 0.075

mass Ca(OH)₂(MW=74,093 g/mol) ⇒ theoretical

\tt mass=mol\times MW\\\\mass=0.075\times 74,093 g/mol\\\\mass=5.557~g

% yield :

\tt =\dfrac{actual}{theoretical}\times 100\%\\\\=\dfrac{3.5}{5.557}\times 100\%\\\\=62.98\%

8 0
2 years ago
How is nitric acid classified?
Darina [25.2K]
It's classified as an acid
4 0
3 years ago
Once the sun's energy reaches the earth's atmosphere through radiation, it is circulated within the atmosphere and oceans throug
Levart [38]

B) convection

Explanation:

Once the sun's energy reaches the earth's atmosphere by radiation, it is circulated within the atmosphere and oceans through convection.

The energy of the sun on earth is moved between the ocean and the atmosphere by air around us.

  • Heat transfer in fluids is by convection.
  • It involves the actual motion of the particles of medium from one place to another due to differences in temperature and density.
  • Air close to the surface of the ocean is less dense and hot due to high temperature.
  • The air rises and it is replaced by colder air masses.
  • This exchange leads to the development of convective cells.
  • This moves the energy of the sun between the atmosphere and the ocean surface.

learn more:

Radiation brainly.com/question/1140127

#learnwithBrainly

4 0
3 years ago
How do you know if a reaction is endothermic
Karo-lina-s [1.5K]
If the temperature rises in a reaction. Exothermic is if it loses heat. 

Have a nice day, brainliest would be fantastic.
7 0
3 years ago
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