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
emmasim [6.3K]
3 years ago
5

Please hurry!!! And help!!

Chemistry
1 answer:
Crazy boy [7]3 years ago
6 0

Answer:

Graphite, because it has atoms of same atomic and electrovalent electrons

You might be interested in
Which of the following can be separated by physical means: a compound or a mixture. Explain.
sineoko [7]

Answer:

a mixture

Explanation:

in a mixture the substances havent chemically combined so it is easy to just separate them through physical means

4 0
3 years ago
In bullet points: explain the difference between thermal energy, heat and temperature.
sergeinik [125]
  • Thermal Energy- is the energy that comes from heat. This heat is generated by the movement of tiny particles within an object. The faster these particles move, the more heat is generated.

  • Heat-energy is the result of the movement of tiny particles called atoms, molecules or ions in solids, liquids and gases. Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects.

  • Temperature- is a measure of how hot or cold something is; specifically, a measure of the average kinetic energy of the particles in an object, which is a type of energy associated with motion.
3 0
3 years ago
[Ca2+] within the endoplasmic reticulum (ER) is 10-3M. Cytosolic [Ca2+] is 10-7M. Lysosomes in mammalian cells have an internal
Pani-rosa [81]

Answer:

B. Ca2+ import into the ER because it has the steeper concentration gradient

Explanation:

ΔGt =  RT㏑(C₂/C₁)

where ΔGt is the free energy change for transport; R = 8.315 J/mol; T = 298 K; C₂/C₁ is ratio of concentrations inside and outside each organelle.

For Ca²⁺ import

ΔGt = 8.315 J/mol * 298 K * ㏑(10⁻³/10⁻⁷)

ΔGt= 3.42 kJ/mol

For H⁺ import

ΔGt = 8.315 J/mol * 298 K * ㏑ (10⁻⁴/10⁻⁷)

ΔGt = 2.73 kJ/mol

From the above values, ΔGt is greater for Ca²⁺ import because it has a steeper concentration gradient

8 0
3 years ago
Describe how a positive result for the Baeyer Test will look. What is being oxidized? What is being reduced?
Ksivusya [100]

Answer:

This reaction is sometimes referred to as the Baeyer test. Because potassium permanganate, which is purple, is reduced to manganese dioxide, which is a brown precipitate, any water‐soluble compound that produces this color change when added to cold potassium permanganate must possess double or triple bonds.

Explanation:

<h2><em>I</em><em> </em><em>HOPE</em><em> </em><em>IT'S</em><em> </em><em>HELP</em><em> </em></h2>
5 0
3 years ago
How many molecules are in 10 moles of Hydrogen?
vivado [14]

Answer:3.2

Mass:32

Molecular weight: 10

Moles: 3.2

8 0
3 years ago
Other questions:
  • This is the speed at which molecules or atoms move dependent on temperature and state of matter.
    14·2 answers
  • Which planets distance from the sun is 778,600,000
    12·1 answer
  • How many oxygen atoms<br> in 4 Al 2 O 3
    13·1 answer
  • Write down examples of some natural acids and natural bases. Also write use of them.
    14·1 answer
  • Why might a major volcanic eruption lead to cooler temperatures of Earth's surface?
    5·1 answer
  • Which molecules do cells need to get from outside the body in order to function properly
    8·1 answer
  • What is one pro and one con of mining?
    10·1 answer
  • Matter will come in two different types. What are they called?
    5·2 answers
  • a wooden block with a mass of 2.0kg starts from at the top of an inclined plane and ends with a force of 25N at the bottom what
    14·1 answer
  • An exergonic reaction __________ free energy, and an endergonic reaction __________ free energy.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!