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
Lelu [443]
3 years ago
12

Using the name of the ionic compound, select the

Chemistry
2 answers:
sertanlavr [38]3 years ago
8 0

Answer:

option C. Ca(HCO3)2

Explanation:

did it on edg

Arturiano [62]3 years ago
3 0

Answer:

c

Explanation:

You might be interested in
Which salt shows the least solubility change when the temperature is increased from 0 to 100 c?
Hunter-Best [27]
Sodium chloride (NaCl), whose only changes about 5g/100mL water over that entire range 100°C)
4 0
3 years ago
Read 2 more answers
Marcar la alternativa correcta en relación a desplazamiento y la distancia
asambeis [7]

Answer              A

Explanation:

8 0
3 years ago
A 30.7 g sample of Strontium nitrate, Sr(NO3)2•nH2O, is heated to a constant mass of 22.9 g. Calculate the hydration number.
Elodia [21]

Answer:

  • <em>Hydration number:</em> 4

Explanation:

<u>1) Mass of water in the hydrated compound</u>

Mass of water = Mass of the hydrated sample - mass of the dehydrated compound

Mass of water = 30.7 g - 22.9 g = 7.8 g

<u>2) Number of moles of water</u>

  • Number of moles = mass in grams / molar mass

  • molar mass of H₂O = 2×1.008 g/mol + 15.999 g*mol = 18.015 g/mol

  • Number of moles of H₂O = 7.9 g / 18.015 g/mol = 0.439 mol

<u>3) Number of moles of Strontium nitrate dehydrated, Sr (NO₃)₂</u>

  • The mass of strontium nitrate dehydrated is the constant mass obtained after heating = 22.9 g

  • Molar mass of Sr (NO₃)₂ :  211.63 g/mol (you can obtain it from a internet or calculate using the atomic masses of each element from a periodic table).

  • Number of moles of Sr (NO₃)₂ = 22.9 g / 211.63 g/mol =  0.108 mol

<u>4) Ratio</u>

  • 0.439 mol H₂O / 0.108 mol Sr(NO₃)₂ ≈  4 mol H₂O : 1 mol Sr (NO₃)₂

Which means that the hydration number is 4.

4 0
3 years ago
Read 2 more answers
What is the magnetic quantum number value for an element with n = 1?
Citrus2011 [14]

Answer:

0, l is n-1 always, ml is l to -l

6 0
3 years ago
Calculate the pH of the following?
Gwar [14]
The correct answer is c
4 0
3 years ago
Other questions:
  • About 10-15% of all galaxies are which shape?
    10·2 answers
  • What type of chemical reaction occurs between silver nitrate (AgNO3) and Copper (Cu)? The equation I was given is 2AgNO3 + Cu —&
    10·1 answer
  • A student using this technique finds that when putting a hot piece of metal into a calorimeter which contains 35.070g of water,
    7·1 answer
  • The mean free path of nitrogen molecules at 2.3°C and 1.28 atm is 1.51 x 10-5 cm. At this temperature and pressure there are 3.4
    14·1 answer
  • This tea kettle shows a change in the state of matter of water. Which part of the water cycle represents the same change in stat
    7·1 answer
  • Which words from the article help the reader to understand the importance of a special habitat?
    13·2 answers
  • Quinine is an important type of molecule that is involved in photosynthesis. The transport of electrons mediated by quinone in c
    5·1 answer
  • Mendeleev’s table of elements was better accepted than those of other scientists at the time because _______________ . Moseley w
    15·2 answers
  • How much heat is given off when you freeze 95.7 g of water?
    14·2 answers
  • If an object has a temperature of 0 kelvin, how much energy is the object emitting? what is the wavelength of light emission acc
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!