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
sergejj [24]
3 years ago
9

URGENT: Do you switch charges for ionic or covalent bonds when naming them?

Chemistry
1 answer:
bekas [8.4K]3 years ago
7 0

Answer:

ionic

Explanation:

You might be interested in
Atmospheric pressure at sea level is equal to a column of 760 mm Hg. Oxygen makes up 21 percent of the atmosphere by volume. The
Neporo4naja [7]

<u>Answer:</u> The partial pressure of oxygen is 160 mmHg

<u>Explanation:</u>

We are given:

Percent of oxygen in air = 21 %

Mole fraction of oxygen in air = \frac{21}{100}=0.21

To calculate the partial pressure of oxygen, we use the equation given by Raoult's law, which is:

p_{O_2}=p_T\times \chi_{O_2}

where,

p_{O_2} = partial pressure of oxygen = ?

p_T = total pressure of air = 760 mmHg

\chi_{O_2} = mole fraction of oxygen = 0.21

Putting values in above equation, we get:

p_{O_2}=760mmHg\times 0.21\\\\p_{O_2}=160mmHg

Hence, the partial pressure of oxygen is 160 mmHg

8 0
3 years ago
What is the molarity of a solution made by mixing 2.80 g of koh with enough water make 750 ml of solution?
Travka [436]
<span>Molarity is expressed as the number of moles of solute per volume of the solution. We calculate as follows:

2.80 g ( 1 mol / 56.11 g ) = 0.05 mol KOH

Molarity = 0.05 mol KOH / 750 mL ( 1 L / 1000 mL )
Molarity = 0.07 M

Hope this answers the question. Have a nice day.</span>
7 0
3 years ago
Which one of the following is a base?<br>A. HCI <br>B.Cu(OH)2 <br>C.HNO3 <br>D.HC2H3O2​
DedPeter [7]

Answer:

b. Cu(OH)2

Explanation:

As it is having Hydroxil ions(OH).

5 0
3 years ago
Read 2 more answers
2) Examine the molecules below.<br> Circle the molecules that can also be classified as compounds.
sergejj [24]

Answer:

3rd

Explanation:

its the way they look

4 0
2 years ago
What determines the length of each period in the periodic table?
4vir4ik [10]
The number of electrons that can occupy the sub levels being filled by that period
3 0
3 years ago
Other questions:
  • Which of the following equations violates the law of conservation of mass?. . 2Al + 6HCl----&gt; 2AlCl3 + 3H2. . Na2C2O4 + Pb(NO
    12·1 answer
  • If on substance has 9 positive charges and 11 negative charges is it positive or negative
    13·1 answer
  • A 10.0 kg crate is pushed with a horizontal force of 40 N. The crate moves at a constant velocity of 3.0 m/s. What is the value
    14·1 answer
  • Why is genetic engineering beneficial?
    8·1 answer
  • Calculate the equilibrium potential of a copper wire immersed in 0.0005 M CuSO4 solution. The standard electrode potential for t
    5·1 answer
  • if 14g of ethene reacts with excess amount of steam to give 17.25g of ethanol what is the percentage yield
    10·1 answer
  • What is the correct answer? please
    9·1 answer
  • Which of the following is an example of a connection between the hydrosphere and the
    10·1 answer
  • Consider the hydrocarbon below. 2 carbons are double-bonded to each other; the pair are single bonded to h above left, above rig
    11·1 answer
  • The amount of gram - atoms in two gramm of sulfur is (NB: S=32amu)​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!