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
Leni [432]
3 years ago
14

Help on this question!

Chemistry
2 answers:
Ira Lisetskai [31]3 years ago
8 0

Answer:

true

Explanation:

cause im smart

enyata [817]3 years ago
6 0

Answer:

True, The Answer is true. Mechanical digestion involves physically breaking the food into smaller pieces.

You might be interested in
PLEASE HELP ME I WILL LOVE U FOREVER
AlekseyPX

Answer:

according to me option a is the correct one

7 0
3 years ago
1 Select the correct answer! Which statement best explains the octet rule? A. Atoms gain, lose, or share electrons to achieve a
Ostrovityanka [42]

Answer:

A. Atoms gain, lose, or share electrons to achieve a full valence shell

Explanation:

The octet rule is best explained as the process in which atoms lose or gain or share electrons to achieve a full valence shell.

  • In this process bonds are formed when there is an attraction between the two substances.
  • For electrovalent compounds, an atom will lose electrons or gain electron to form an ion, the electrostatic attraction causes the bond formation.
  • Covalent compounds, form by sharing of electrons.

Therefore, the octet rule is attained when atoms gain full valence configuration.

5 0
3 years ago
Calculate the pH and pOH of 500.0 mL of a phosphate solution that is 0.285 M HPO42– and 0.285 M PO43–. (Ka for HPO42- = 4.2x10-1
jekas [21]

Answer: when concentrations of acid and base are same, pH = pKa

PH = 12.38 pOH = 1.62

Explanation: pKa= -log(Ka)= 12.38. PH + pOH = 14.00

8 0
4 years ago
A 291 kg motorcycle moves with a velocity of 7 m/s. What is its kinetic energy? Joules
Elenna [48]
Kinetic energy=1/2*mass*velocity²
=1/2*291*49
=7129.5 Joules
3 0
3 years ago
On what basis can mixtures be classified as solutions suspensions or colloids
FinnZ [79.3K]

Answer:

A mixture is classified as a solution when there is an homogeneous mixture of the two or more substances involved in a given medium.

A mixture is classified as a suspension when there is a heterogeneous mixture of undissolved particles in a given medium.

A mixture is classified as a colloid (false solution) when the individual solute Particles are larger than the particles of true solution, but they are not large enough to be seen by the naked eye. The solutes can scatter light rays.

7 0
4 years ago
Other questions:
  • How to convert moles 3.612 x 10^23 atoms Fe
    10·1 answer
  • Important yes people important
    13·1 answer
  • If a gas occupies a volume of 950 mL at standard temperature, what volume will it
    14·1 answer
  • For the simple decomposition reaction
    13·1 answer
  • Calculate the molar mass of Cr4(P2O7)
    5·1 answer
  • Escriba las fórmulas de los siguientes compuestos iónicos:
    9·1 answer
  • Calculate the mass of calcium carbide that is needed to produce 100cm of acetylene according to the following equation​
    7·1 answer
  • In cellular respiration the energy starts as ____________ energy and ends up as ______________ energy.
    9·1 answer
  • *30 points* Pls answer following the rules of :No files
    7·1 answer
  • Suggest the stable ion for phosphorus and why?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!