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
aev [14]
3 years ago
9

A new substance is usually formed when two or more substances combine and form new protons. chemical bonds. physical shapes. ele

ctrons.
Chemistry
1 answer:
vovangra [49]3 years ago
5 0
Chemical bonds.
protons and electrons can't combine
You might be interested in
Which of the following elements in group 1 of the periodic table has the smallest atomic radius?
ivann1987 [24]
The element in group 1 of the periodic table that had the smallest atomic radius is A. Lithium.
6 0
3 years ago
Identify each number that is given is scientific notation
Neko [114]

Answer:

Need more information.

Explanation:

I believe you either left out info or explained the question confusingly.

5 0
3 years ago
What is the average kinetic energy of 1 mole of a gas at -32 degrees Celsius? (R = 8.314 J/K-mol)
romanna [79]

Answer:

3.01 x 103 J

Explanation:

To determine the average kinetic energy of a gas, it is necessary to use the equation, KE = 3/2 RT. The value of R, multiplied by the temperature, and multiplied by 3/2, can provide the average kinetic energy of the gas.

3 0
3 years ago
The pressure of a sample of helium in a 200. ml. container is 2.0 atm. If the 5 points
just olya [345]

The pressure of the gas = 40 atm

<h3>Further explanation</h3>

Given

200 ml container

P = 2 atm

final volume = 10 ml

Required

Final pressure

Solution

Boyle's Law  

At a fixed temperature, the gas volume is inversely proportional to the pressure applied  

\tt \rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}

Input the value :

P₂ = P₁V₁/V₂

P₂ = 2 x 200 / 10

P₂ = 40 atm

3 0
3 years ago
Calcium chloride is added to the roadways after a snowstorm. Which colligative property is being showcased here?
vlabodo [156]

Answer:

Option (D) freezing point depression

Explanation:

Calcium chloride is added to the roadways after a snowstorm because it reduces the freezing point of the ice. Further more, it has been observed that the calcium chloride also produces enough heat which enhances the melting of the ice as it produces an exothermic reaction.

6 0
3 years ago
Other questions:
  • In what type of reaction or process does heat flow into the system?
    8·2 answers
  • Two 20.0-g ice cubes at –11.0 °C are placed into 205 g of water at 25.0 °C. Assuming no energy is transferred to or from the sur
    6·2 answers
  • Using what you have learned about the three forms of writing chemical equations, classify each of the presented equations as eit
    7·1 answer
  • 3. Prolonged exposure to lead or lead salts is toxic. To prevent lead poisoning, the current standard for lead paint is 600.0 pp
    14·1 answer
  • Which term names the grid used to predict the result of genetic crosses?
    10·2 answers
  • Which ion is this atom most likely to form?<br> Options:<br> a. Na+<br> b. Na-<br> c. Ne-<br> d. Mg+
    6·2 answers
  • What is the percentage of nitrogen in the compound Cu(NO3)2
    9·1 answer
  • What does the chemical formula C3H6O2 tell about a molecule of the compound it represents?
    9·2 answers
  • Metric conversion ( convert )
    11·1 answer
  • PLEASE HELP!!! I REALLY NEED HELP ON THIS TEST!!!<br>​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!