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
djverab [1.8K]
3 years ago
10

In the periodic table we use today, the ordering of the elements is based on _____.

Chemistry
1 answer:
Firdavs [7]3 years ago
3 0
<span>The ordering of the elements is based on Atomic number. 
Atomic number is the number of protons inside the nucleus of an atom. 

Ordering is from left to right. Atomic number increases successively from left t</span>o right.
You might be interested in
What is the electron configuration for magnesium (Mg)?
AveGali [126]

Magnesium has atomic no 12

Electronic configuration given by

  • 1s²2s²2p⁶3s²

Or

  • [Ne]3s²
6 0
2 years ago
The "air bags" that are currently installed in automobiles to prevent injuries in the event of a crash are equipped with sodium
stellarik [79]

Answer:

0.0177 L of nitrogen will be produced

Explanation:

The decomposition reaction of sodium azide will be:

2NaN_{3}(s)--->2Na(s)+3N_{2}(g)

As per the balanced equation two moles of sodium azide will give three moles of nitrogen gas

The molecular weight of sodium azide = 65 g/mol

The mass of sodium azide used = 100 g

The moles of sodium azide used = \frac{mass}{molarmass}=\frac{100}{65}=1.54mol

so 1.54 moles of sodium azide will give = \frac{3X1.54}{2}=2.31mol

the volume will be calculated using ideal gas equation

PV=nRT

Where

P = Pressure = 1.00 atm

V = ?

n = moles = 2.31 mol

R = 0.0821 L atm / mol K

T = 25 °C = 298.15 K

Volume = \frac{P}{nRT}=\frac{1}{2.31X0.0821X298.15}=0.0177L

3 0
3 years ago
 Josh performs an experiment to see how different brands of fertilizer will affect the growth of tomato plants. The amount of su
mestny [16]
It is A. Independent variable 
5 0
3 years ago
Potential energy is based on an objects
erma4kov [3.2K]

This is some information about the potential energy.

Explanation:

Please follow me...

3 0
3 years ago
Read 2 more answers
what is the order of decreasing bond length for a C-C bond composed of the following molecular orbitals?I. sp^3 - sp^3II. sp^2 -
skelet666 [1.2K]

Answer:

The decreasing order of bond length in the carbon - carbon bonds will be:

C-C>C=C>C\equiv C

Explanation:

Bond length is defined as average distance between two nuclei of  bonded atoms in a molecule.Bond length is inversely  proportional to the number of bonds present between two atoms.

\text{Bond length} \propto \frac{1}{\text{Number of bonds}}...[1]

Bond energy is defied as amount of energy required to break apart the bond of 1 mole of molecule into their individual atom. Bond energy is directly proportional to the number of bonds present between two atoms.

\text{Bond Energy} \propto \text{Number of bonds}..[2]

From [1] and [2]:

\text{Bond length} \propto \frac{1}{\text{Bond energy}}

C-C: sp_3 hybridized

C=C: sp_2 hybridized

C\equiv C: sp hybridized

Extent of overlapping of orbitals in these hybridization;

C\equiv C> C=C > C-C

Higher the overlapping of orbital more closer will be both atoms to each other and shorter will be the bond lenght.

So, the decreasing order of bond length in the carbon - carbon bonds will be:

C-C>C=C>C\equiv C

8 0
3 years ago
Other questions:
  • ) how much of the primary standard benzoic acid (fm 122.12, density 1.27 g/ml) should you weigh out to obtain a 100.0 mm aqueous
    14·1 answer
  • determine the rate of a reaction that follows the rate law: rate=k[A]m[B]n, where: k= 1x10-2 [A]=2 M B= 3 M m=2 n=1?
    10·1 answer
  • What is carbon compounds? explain with examples​
    12·1 answer
  • 3. I bought 4 quarts of milk at the<br> store. How mariy mL is that?
    10·2 answers
  • The radio station z107.7 broadcasts radio waves. What do the numbers 107.7 represent?
    6·2 answers
  • Calculate the enthalpy change when 4.00 mol Cl2O7 is produced according to the following balanced equation:
    7·1 answer
  • When baking soda is mixed with vinegar, which type of reaction has taken place?
    11·1 answer
  • How many moles of H20 are produced by 4.8 moles of O2?<br> 2H2 +O2 -----&gt; 2H20
    15·1 answer
  • Convert the following temperature to c 67k b) 1671k
    13·1 answer
  • 20.0 g of bromic acid, HBrO3, is reacted with excess HBr.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!