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
IceJOKER [234]
3 years ago
12

Which regions on the periodic table can adopt positive and negative oxidation numbers?

Chemistry
1 answer:
Dennis_Churaev [7]3 years ago
7 0

<span>The region(s) of the periodic table which are made up of elements that can adopt both positive and negative oxidation numbers are the “non-metal” region. As we can see on the periodic table, the elements situated at the right side of the table have two oxidation states, one positive and the other a negative. </span>

You might be interested in
What is a jet stream?
valkas [14]

Answer:

Jet streams are fast flowing, narrow, meandering air currents in the atmospheres of some planets, including Earth

Explanation:

3 0
4 years ago
Read 2 more answers
How many significant figures in 11 soccer players
maria [59]
Counting gives an exact number and exact numbers have infinite sig figs.
3 0
3 years ago
About how many millions of tons of paper and paperboard were consumed worldwide in 1970? 1980? 1990? 2000?
ad-work [718]

2000 IS RIGHT BECAUSE IT IS

6 0
3 years ago
Read 2 more answers
How much energy, in joules, does 150.0 g of water with an initial temperature of 25 C need to absorb be raised to a final temper
satela [25.4K]

Answer:

31395 J

Explanation:

Given data:

mass of water = 150 g

Initial temperature = 25 °C

Final temperature = 75 °C

Energy absorbed = ?

Solution:

Formula:

q = m . c . ΔT

we know that specific heat of water is 4.186 J/g.°C

ΔT = final temperature - initial temperature

ΔT = 75 °C - 25 °C

ΔT = 50 °C

now we will put the values in formula

q = m . c . ΔT

q = 150 g × 4.186 J/g.°C × 50 °C

q = 31395 J

so, 150 g of water need to absorb 31395 J of energy to raise the temperature from 25°C to 75 °C .

5 0
3 years ago
NH4NO3, whose heat of solution is 25.7 kJ/mol, is one substance that can be used in cold pack. If the goal is to decrease the te
makvit [3.9K]

Answer:

There are necessaries 35,2g of NH₄NO₃ per 100,0g of water to decrease the temperature of the solution from 25,0°C to 5,0°C

Explanation:

To decrease the temperature of the solution there are necessaries:

4,184J/g°C×(5,0°C-25,0°C)×(100,0g+X) = -Y

8368J + 83,68J/gX = Y <em>(1)</em>

Where x are grams of NH₄NO₃ you need to add and Y is the energy that you need to decrease the heat.

Also, the energy Y will be:

Y = 25700J/mol×\frac{1mol}{80,043g}X

Y = 321J/g X <em>(2)</em>

Replacing (2) in (1)

8368J + 83,68J/g X = 321J/g X

8363J = 237,32J/gX

<em>X = 35,2g</em>

<em />

Thus, there are necessaries 35,2g of NH₄NO₃ per 100,0g of water to decrease the temperature of the solution from 25,0°C to 5,0°C

I hope it helps!

6 0
3 years ago
Other questions:
  • A sample of gas occupies 33 mL at -101 degrees Celsius. What volume does the sample occupy at 97degrees celsius? Plz help I have
    8·1 answer
  • Urgent plz help thanks!
    12·1 answer
  • For the following reaction, 30.1 grams of carbon disulfide are allowed to react with 95.9 grams of chlorine gas. carbon disulfid
    9·1 answer
  • Which of the following include exact numbers?
    15·2 answers
  • Several properties of the element magnesium are shown. Which one is a chemical property?
    7·1 answer
  • Which ones react with HCL?
    14·1 answer
  • Explain why atoms would gain or lose electrons in order to resemble the elements in the particular group you named above. Consid
    5·1 answer
  • What did Thomson’s and Rutherford’s experiments have in common?
    12·1 answer
  • Minerals are all naturally occurring solid substances with a definable chemical composition. They must also possess Group of ans
    7·1 answer
  • I2 (s) has a very low solubility in H2O (l) because the weak _____ forces between I2 and H2O are not strong enough to replace th
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!