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
Mariana [72]
2 years ago
10

What electron configuration represents Nitrogen? A. 2,2 B. 2,8,4 C. 2,4 D. 2,5

Chemistry
1 answer:
Anastaziya [24]2 years ago
7 0

Answer:

D. 2:5

Explanation:

It has 5 valency electrons

.

You might be interested in
Plz someone help, really struggling
frez [133]

Answer:

22.9 Liters CO(g) needed

Explanation:

2CO(g)     +   O₂(g)    =>    2CO₂(g)

? Liters          32.65g

                 = 32.65g/32g/mol

                 =   1.02 moles O₂

Rxn ratio for CO to O₂ = 2 mole CO(g) to 1 mole O₂(g)

∴moles CO(g) needed = 2 x 1.02 moles CO(g) = 2.04 moles CO(g)

Conditions of standard equation* is STP (0°C & 1atm) => 1 mole any gas occupies 22.4 Liters.

∴Volume of CO(g) = 1.02mole x 22.4Liters/mole = 22.9 Liters CO(g) needed

___________________

*Standard Equation => molecular rxn balanced to smallest whole number ratio coefficients is assumed to be at STP conditions (0°C & 1atm).

6 0
2 years ago
What is the hardest mineral listed here? <br> A. quartz B. calcite C. gypsum D. corundum
a_sh-v [17]
The answer would be D. The only minerals harder than corundum is diamond.
3 0
3 years ago
Read 2 more answers
Given 16.2 grams of substance Y, if the substance absorbs 2722 joules of energy and the specific heat of the substance is 9.22 J
snow_tiger [21]
Since the substance absorbs heat, it is expected that the temperature will rise. The formula for the internal energy of a substance is given by the equation:

ΔU = mCpΔT

where:

ΔU = internal energy
m = mass of substance
Cp = specific heat capacity of substance
ΔT = change in temperature

ΔU = 2722 Joules = 16.2 grams (9.22 J/g-°C) (Tf - 26°C)

This gives a final temperature of Tf = 44.22 °C
4 0
2 years ago
Rain that has a very low pH is called
lakkis [162]
Acid rain is rain with very low pH! Hope this helps!
8 0
2 years ago
A 0.530 M Ca(OH)2 solution was prepared by dissolving 36.0 grams of Ca(OH)2 in enough water. What is the total volume of the sol
Gekata [30.6K]

Answer:

0.917

Explanation:

3 0
3 years ago
Other questions:
  • Help help help help
    5·1 answer
  • Is cleaning bleach a pure substance or mixture
    7·1 answer
  • Describe the range of radii of most atoms in nanometers (nm)
    14·1 answer
  • Balance the equation
    13·1 answer
  • Determine if each of the following statements about chiral molecules is True or False and select the best answer from the dropdo
    12·1 answer
  • How much heat, in kJ, will be absorbed by a 25.0 g piece of aluminum (specific heat = 0.930 J/g・°C) as it changes temperature fr
    13·1 answer
  • How many formula units make up 25.8g of magnesium chloride (MgCl2)? Express the number of formula units numerically.
    8·1 answer
  • Which food type will show no colour charge when it is tested with millon's reagent /Bluret solution​
    7·1 answer
  • What is the source of energy that provides the boost for electrons during photosynthesis
    15·1 answer
  • Perform the following
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!