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
Rashid [163]
3 years ago
15

Will mark brainliest if correct!!

Chemistry
1 answer:
german3 years ago
4 0

Answer:

Na2O

Explanation:

it is because oxygen has a lower valence compared to sodium

You might be interested in
AlCl3 + Na NaCl + Al<br><br> Did Na change oxidation number?
Ilya [14]
Al^{+III}Cl^{-I} _{3}+Na^{0}\rightarrow Na^{+I}Cl^{-I} + Al^{0}\\\\&#10;Yes
3 0
3 years ago
Fusion reactors are more desirable than fission because:
Serga [27]
I believe it is A)fuel is more readily available:)
4 0
4 years ago
Read 2 more answers
Calculate the ph of sweater which has a hydrogen ion concentration of 1 times 10 to the power of 8
telo118 [61]

Answer:

The pH of the sweater containing Hydrogen ion concentration

[H^{+}]=1\times 10^{-8} is

<u>8</u>

<u></u>

Explanation:

pH = It is the negative logarithm of activity (concentration) of hydrogen ions.

pH = -log([H+])

Now, In the question the concentration of [H+] ions is :

[H^{+}]=1\times 10^{-8}

pH = -log(1\times 10^{-8})

use the relation:

log(10^{-a})=a

pH= -(-8)

pH = 8

Note : <em><u> 1 times 10 to the power of 8 must be" 1 times 10 to the power of -8"</u></em>

If the concentration is

[H^{+}]=1\times 10^{8}

Then pH = -8 , which is not possible . So in that  case the pH calculation is by other method

5 0
3 years ago
As the volume of a gas at constant temperature did decreased,the pressure increases because
frosja888 [35]

Answer:

boyles law

Explanation:

volume is inversely proportional to pressure

7 0
2 years ago
In an investigation with density, Marcia’s teacher measures the mass and volume of 10 different samples of a substance. The samp
valina [46]

Answer:

Mass  

Step-by-step explanation:

Usually, you plot the independent variable along the horizontal (x) axis and the dependent variable along the vertical (y) axis.

Marcia's teacher plotted the mass of the sample along the x-axis and volume along the y-axis.

The mass is the independent variable, because that is <em>what the teacher varied</em>.

The volume is the <em>dependent variable</em>, because it <em>depends</em> on the mass.

Sample number is <em>wrong</em>, because it is not a variable.

Substance is <em>wrong</em>, because all samples consist of the same substance.

Density is <em>wrong</em>, because it is constant. It is the slope of the graph.

3 0
3 years ago
Read 2 more answers
Other questions:
  • When sodium metal is added to water, an orange flame is observed on the metal surface. Based on this observation, what can best
    15·1 answer
  • Aluminum oxide was prepared by heating 225 g of chromium (III) oxide with 125 g of aluminum. Calculate the percent yield of 100.
    11·1 answer
  • A mathematical equation for density is?
    13·1 answer
  • a bottle of rubbing alcohol is labeled 70%(v/v) how many milliliters of isopropyl alcohol are in a 400ml bottle of this solution
    7·1 answer
  • How many moles are there in 7.50 x 10^23 atoms of iron?
    10·1 answer
  • Balancing Practice (some of these may be in the simulation)
    5·1 answer
  • Zinc is more active than cobalt and iron but less active than aluminum. Cobalt is more active than nickel but less active than i
    12·1 answer
  • What is the formula of the salt produced by this reaction?
    14·1 answer
  • Calculate the number of S atoms in 0.670 mole of S.
    15·1 answer
  • Please help !!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!