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
Wittaler [7]
3 years ago
9

PLEASE HELPP!!!!

Chemistry
1 answer:
Alenkinab [10]3 years ago
3 0

Answer:

Na the valency electrons is 1

The ion charge is positive 1

K the valency electrons is 1

The ion charge is positive 1

Explanation:

Mg the valency electron is 2 The ion charge is positive 2

Ca the valency electron is 2 The ion charge is positive 2

Al the valency electron is 3 The ion charge is positive 3

O the valency electron is 2 The ion charge

is negative 2

F the valency electron is 1 The ion charge is negative 1

Cl the valency electron is 1 The ion charge

is negative 1

N the valency electron is 3 The ion charge is negative 3

S the valency electron is 2 The ion charge is

negative 2

You might be interested in
Which of the following could be the subsh
andreev551 [17]

Answer:

2s^2 2p^2

Explanation:

Group 4A contains a total of 4 electrons for each atom in their valence shell. Filling the orbital diagram, let's say, for carbon, notice that when we start with period 2, we have two elements in the s-block, that is, lithium and beryllium. They correspond to the two s electrons that belong to the valence shell of carbon.

Moving on, we have boron and carbon, the remaining 2 electrons. Now, starting with boron, we're in the p-block.

That said, looking at the second period, the electron configuration for the valence shell of a group 4A element would be:

2s^2 2p^2

6 0
3 years ago
When you stand on a bathroom scale, what force or forces are acting on you?
Readme [11.4K]

Answer:

B

Explanation:

Lets see here, Gravity is pulling you down but your body is repelling to gravity. Meaning that gravity is pulling down your weight and the scale is reading it.

Hope this helped!

3 0
2 years ago
Read 2 more answers
PLEASE HELP NOW!! 30 BRAINLIEST!!!
scoray [572]

Answer:

the answer should be A. the sum of all forces acting on an object

Explanation:

8 0
3 years ago
Read 2 more answers
Brainliest for an answer!
Degger [83]

The volume of H₂ : = 15.2208 L

<h3>Further explanation</h3>

Given

Reaction

2 As (s) + 6 NaOH (aq) → 2 Na₃AsO₃ (s) + 3 H₂ (g)

34.0g of As

Required

The volume of H₂ at STP

Solution

mol As (Ar = 75 g/mol) :

= mass : Ar

= 34 g : 75 g/mol

= 0.453 mol

From the equation, mol ratio As : H₂ = 2 : 3, so mol H₂ :

=3/2 x mol As

=3/2 x 0.453

= 0.6795

At STP, 1 mol = 22.4 L, so :

= 0.6795 x 22.4 L

= 15.2208 L

5 0
2 years ago
Which kind of nuclear decay does not alter the identity of the atom?
PtichkaEL [24]
For alpha and beta decay it does because the proton number changes.
During gamma, there is no change of identity, just energy
5 0
3 years ago
Read 2 more answers
Other questions:
  • What type of coloration do the stonefish and oscellated frog fish have
    15·1 answer
  • How many bromine atoms are present in 37.5 g of CH2Br2?
    5·1 answer
  • What is the m of a solution where 0.500 moles of a salt are dissolved in 100.0 ml of solution? 25.0m 5.00m 50.0m o.500m 2.50m?
    12·1 answer
  • Is a substance that a filter can seperate into two parts a mixture or a pure substance?
    14·1 answer
  • What coefficient would the O 2 have after balancing C 4 H 10 +O 2 CO 2 +H 2 O ?
    12·1 answer
  • An ideal gas is contained in a cylinder with a volume of 5.0x102 mL at a temperature of 30°C and a pressure of 710. Torr. The ga
    11·1 answer
  • Given the data table below, which metal will take the least amount of
    8·1 answer
  • Please please please please help
    5·1 answer
  • PLEASE HELP it’s due in 30 minutes
    13·1 answer
  • At Christmas time, I like to burn scented candles that smell like sugar cookies. How does the candle in one location change the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!