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
Trava [24]
3 years ago
12

Using noble gas notation write the electron configuration for the chromium(II) ion

Chemistry
1 answer:
zzz [600]3 years ago
6 0
Since chromium has 24 as its atomic number (which mean that it has 24 proton and 24 electron in neutral ground state), the electron configuration for the chromium would be :

1s^2 , 2s^2 , 2p^6 , 3s^2, 3p^6 , 3d^5 , 4s^1
You might be interested in
How many molecules are in 21.5G of water
NemiM [27]

Answer:

There are 6.022×1023 molecules in a mole. There are 18.01528 grams of water per mole of water. in 1g water

Explanation:

please Mark my answer in brainlist

6 0
2 years ago
What type of chemical bond holds NaCI, an ionic crystal, together?
mihalych1998 [28]
Ionic bonds hold NaCl together
3 0
2 years ago
Read 2 more answers
A water molecule consists of an oxygen atom and two hydrogen atoms covalently bonded in a bent shape. Oxygen however, attracts t
77julia77 [94]

Answer:

D.

Explanation:

Water is polar, for one thing. Polar mixes with polar, nonpolar mixes wih nonpolar. This leaves D.

6 0
3 years ago
You determine the volume of your plastic bag (simulated human stomach) is 1.08 L. How many grams of NaHCO3 (s) are required to f
dsp73

Answer:

3.636 grams of sodium bicarbonate is required.

Explanation:

Using ideal gas equation:

PV = nRT

where,

P = Pressure of gas = 753.5 mmHg = 0.9914 atm

(1 atm = 760 mmHg)

V = Volume of gas = 1.08 L

n = number of moles of gas = ?

R = Gas constant = 0.0821 L.atm/mol.K

T = Temperature of gas = 24.5 °C= 297.65  K

Putting values in above equation, we get:

(0.9914 atm)\times 1.08 L=n\times (0.0821L.atm/mol.K)\times 297.65K\\\\n=0.0438 mole

Percentage recovery of carbon dioxide gas =  49.4%

Actual moles of carbon dioxide formed: 49.4% of 0.0438 mole

\frac{49.4}{100}\times  0.0438 mol=0.02164 mol

2NaHCO_3\righarrow Na_2CO_3+H_2O+CO_2

According to reaction ,1 mol is obtained from 2 moles of sodium bicarbonate.

Then 0.02164 moles f carbon dioxide will be obtained from:

\frac{2}{1}\times 0.02164 mol=0.04328 mol

Mass of 0.04328 moles pf sodium bicarbonate:

0.04328 mol × 84 g/mol = 3.636 g

3.636 grams of sodium bicarbonate is required.

5 0
3 years ago
Where would you expect snow or rain to fall on a mountain
patriot [66]
You would expect snow to fail at the peak or the top because the weather is coldest there.
7 0
3 years ago
Other questions:
  • The goal of this lesson is to answer the lesson question, "what does half-life ‘look like' for a radioactive substance?" fill in
    9·2 answers
  • When scientists look at these examples, what do they know about the atoms? Carbon-12 Carbon-14
    7·1 answer
  • Mass is measured using _____.
    13·2 answers
  • Select the single best answer. When 2-heptyne was treated with aqueous sulfuric acid containing mercury(II) sulfate, two product
    7·1 answer
  • Magnesium oxide decomposes into magnesium and oxygen. if 16.12 g of magnesium oxide decomposes to form 9.72 g of magnesium, what
    12·1 answer
  • True or false: Observing a physical property of a substance will change the substances' identity I NEEED HELLLPPPPP NOOOWWWW !!!
    14·1 answer
  • During an exothermic reaction, ΔH for the reactants was 890 kJ/mol. Which of the following statements is correct about the ΔH fo
    6·2 answers
  • A tank can hold up to 2500 liters of liquid. The tank initially contains 1000 liters of a brine solution with 50kg of salt. A br
    10·1 answer
  • What causes hail when it rains?
    13·1 answer
  • What is the mass in grams of a single atom of Pt?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!