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
aalyn [17]
3 years ago
12

An unknown substance has been shown to have strong ionic bonds. Which of the following is most likely a property of this substan

ce?
A. high pH
B. low boiling point
C. high melting point
D. low solubility
Chemistry
1 answer:
nevsk [136]3 years ago
6 0

Answer:

C. high melting point

Explanation:

Ionic bonds are formed by complete transfer of electronic from one to another atoms. The compound having ionic bonds generally have high boiling points and melting point because of greater electrostatic interaction. Their electrical conductivity are high and these minerals tend to dissolve in water.

For example an ionic compound sodium chloride has melting point 800°C .

While,

Covalent bonds are formed as a result of sharing of electrons between atoms. These compounds are insoluble , hard, having low melting and boiling points and have low conductivity.

The metallic bond is formed when metals are present. Due to loosely bound electrons of metals, electrons are shared with the other atoms. As this is a weak bond so these materials have low melting and boiling points.

You might be interested in
A student observes the combustion (burning) of propane (C3H8). Because of the heat and light it generates, the student concludes
insens350 [35]

Answer:

The student's conclusion is not correct

Explanation:

Activation energy is the minimum amount of energy required for a reaction to occur. All reactions require there activation energy to be met before the reaction can proceed. When the temperature of a reaction is increased, the kinetic energy of the reactant molecules increases; colliding more with each other, which makes them "surmount" the activation energy of the reaction faster as compared to a lower temperature.

In combustion, there is burning of an hydrocarbon (in this case propane) in excess oxygen. The burning assists in increasing the kinetic energy of the reactant particles which in turn easily surmounts the activation energy of the reaction  by colliding (effective collision) more with oxygen. So, the reaction has an activation energy but the activation energy has been met and passed and hence the reaction is proceeding faster.

Increasing the temperature of a reaction is one of the ways of increasing the rate of a chemical reaction.

7 0
2 years ago
Which two cell components deal with the same kind of chemical substance ( lipid, protein, enzyme, and so on)
geniusboy [140]

Answer:

Cell membrane and cytoplasm

Explanation:

Cell membrane is the layer that surronds the cell and it is made up of lipids and proteins. It is made up of a kind of fatty acids based lipids i.e phospholipids and sterols.

Cytoplasm is a thick fluid that is found in the cell membranes. It acts as buffer and protect cells organelles and DNA from damage. It is made up of water, p, lipids, proteins, inorganic salts, nucleic acids.

6 0
3 years ago
Which of the following is the name of the process scientists use to gain
kobusy [5.1K]

Scientific method

Explanation:

The scientific method is the name of the process scientists use to gain knowledge about the physical world.

The scientific method is a systematic approach into the study of nature. It follows the following processes:

  • Detailed observation
  • Asking of question
  • Formulation of hypothesis
  • Experimentation
  • Analysis and interpretation
  • Conclusion

learn more:

Experiment brainly.com/question/1621519

#learnwithBrainly

8 0
3 years ago
Air at 293 K and 750 mm Hg pressure has a relative humidity of 80%. What is its percent humidity? The vapour pressure of water a
Mekhanik [1.2K]

Answer : The correct option is, (c) 79.62

Explanation :

The formula used for percent humidity is:

\text{Percent humidity}=\text{Relative humidity}\times \frac{p-p^o_v}{p-p_v}\times 100   ..........(1)

The formula used for relative humidity is:

\text{Relative humidity}=\frac{p_v}{p^o_v}       ...........(2)

where,

p_v = partial pressure of water vapor

p^o_v = vapor pressure of water

p = total pressure

First we have to calculate the partial pressure of water vapor by using equation 2.

Given:

p=750mmHg

p^o_v=17.5mmHg

Relative humidity = 80 % = 0.80

Now put all the given values in equation 2, we get:

0.80=\frac{p_v}{17.5mmHg}

p_v=14mmHg

Now we have to calculate the percent humidity by using equation 1.

\text{Percent humidity}=0.80\times \frac{750-17.5}{750-14}\times 100

\text{Percent humidity}=79.62\%

Therefore, the percent humidity is 79.62 %

4 0
3 years ago
if a sample of 4.50 moles of hydrogen gas was reacted with excess nitrogen, how many moles of ammonia gas would be produced?
sergiy2304 [10]

Answer: 3.00

Explanation: got the answer from my teachers notes

8 0
3 years ago
Other questions:
  • Which term names elements that are usually shiny and good conductors of heat and electricity? A. gases B. metals C. solids D. no
    12·2 answers
  • A can of chicken broth contains 340 mg of sodium chloride in 286.7 g of broth. What is the percent by mass of sodium chloride in
    15·2 answers
  • Why will heat travel faster in solids than in liquids
    6·1 answer
  • Identify the dominant intermolecular attraction in bh3.
    14·1 answer
  • An alcohol is 68.84 % C and 4.962 % H by mass. The rest is oxygen. What is the empirical formula of the alcohol? Enter the eleme
    14·1 answer
  • QUESTION 5
    8·2 answers
  • Name of the the following unsaturated Hydrocarbon​
    6·1 answer
  • How many molecules of sodium chloride are in 2.5 moles??
    8·1 answer
  • Areas in Mexico and Central America are known as
    6·2 answers
  • When servers or sellers break state, county, or municipal alcohol laws when serving or selling alcohol, the server or seller
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!