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
Svetllana [295]
3 years ago
13

Mass does not change during a chemical change. is the same true for physical change?

Chemistry
1 answer:
Mashutka [201]3 years ago
4 0

Answer:

Mass states that mass is neither created nor destroyed in a chemical reaction or a physical transformation

Explanation:

You might be interested in
As you read from left to right across the periodic table atomic numbers and what by one of each element
Illusion [34]

Answer:

As we read from left to right across the periodic table atomic numbers are increased by one each of element.

Explanation:

As we move from left to right across the periodic table the atomic number is increased by one and the number of valance electron in an atom increase. The atomic size tend to decrease in same period of periodic table because the electrons are added with in the same shell. When the electron are added, at the same time protons are also added in the nucleus. The positive charge is going to increase and this charge is greater in effect than the charge of electrons. This effect lead to the greater nuclear attraction. The electrons are pull towards the nucleus and valance shell get closer to the nucleus. As a result of this greater nuclear attraction atomic radius decreases and ionization energy increases because it is very difficult to remove the electron from atom and more energy is required.

8 0
3 years ago
HELP! 10 pts!! || Which does NOT describe a water molecule?
AVprozaik [17]

Answer:

C.)

Explanation:

Hope this helps:)

5 0
3 years ago
What is the electron arrangement of K
OverLord2011 [107]
A scale factor is it
5 0
3 years ago
what is the maximum number of covalent bonds that an oxygen atom with atomic number 8 can make with hydrogen? question 4 options
Oliga [24]

Maximum number of covalent bonds that an oxygen atom can make with hydrogen is 2.

  • the ground state electronic configuration of oxygen is 2s² 2p⁴ that means it has 6 electrons in its valence shell and require two electrons are required to complete its octate.
  • Two bonds are created when an electron donor atom shares the two needed electrons with oxygen. The ability of two oxygen atoms to share valence electrons results in the creation of a double bond between the two atoms.
  • There are no longer any empty orbitals in the octet of oxygen after it is complete. As a result, it is unable to accept more electrons or create more bonds.

Therefore, Oxygen can only generate two bonds because it needs two additional electrons to complete its octet, after which it will run out of empty orbitals in which to receive additional electrons and create additional bonds.

learn more about octate here:

https://brainly.in/question/24161245

#SPJ4

3 0
1 year ago
Which best describes nuclear fusion? O A nucleus spontaneously splits and absorbs energy O Two nuclei spontaneously combine and
KIM [24]

Answer: Nuclei combine to form a heavier nucleus, releasing energy. ​

Explanation:   e.g two deuterium nucleus (Hydrogen-2 isotopes) forms an He nucleus and energy is released.

4 0
2 years ago
Other questions:
  • What environmental effect has cotton harvesting had in asia
    8·1 answer
  • Given the incomplete equation for the combustion of ethane:
    8·2 answers
  • Calculate the number of photons that would be contained in a laserpulse with a wavelength of 287 nm that contained 4.35 mJ of en
    8·1 answer
  • Consider the following general voltaic cell and a cell notation, and answer all three parts of this question.
    9·1 answer
  • Rising magma pushes on the crust above it, which can cause ground
    12·1 answer
  • Which term is testable, a prediction, and can be supported or refuted by data?
    15·1 answer
  • A small helium tank measures about two feet high. Yet it can fill over 50 balloons! How can such a small tank contain enough hel
    9·1 answer
  • 5.1 mol is equal to_____particles.
    13·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Csf%20%7B%20%5Cfcolorbox%7Bgreen%7D%7Bg%7D%7BWhat%20is%20%5C%3A%20the%20diffrence%20betwe
    11·2 answers
  • Which atom is indicated by this configuration - [Ne] 3s^1
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!