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
Sunny_sXe [5.5K]
3 years ago
9

Select the correct answer.

Chemistry
1 answer:
lorasvet [3.4K]3 years ago
5 0

Answer:

D. the energy release increases the molecular motion but decreases the kinetic

energy of the substance

You might be interested in
What is the eccentricity of mercury
suter [353]
According to my astronomy book, it's about 0.206
6 0
3 years ago
Read 2 more answers
When a force is applied to an object, its _____, the object _________________________________________________________.
Arada [10]
......................

7 0
3 years ago
What’s the answer for #9
zheka24 [161]
Freezer and refrigerator--> Too cold for most bacteria to grow (reproduce). Oven --> too hot for bacteria to survive
4 0
3 years ago
1. write the complete chemical symbol for the ion with 14 protons 15 neutrons and 18 electrons
motikmotik

Answer:

1.   Si^{-4}

2.  Co^{+2}

Explanation:

An ion is formed when an atom that is said to be neutral gains or losses electrons.

It is thought that a negative ion (anion) is produced as it gains electrons and a positive ion (cation) is formed when it loses an electron.

Atomic number is the total number of protons and electrons in a neutral atom.

From the information

Protons = 14

electron = 18

Net Charge = no of proton - no of electron

= 14 - 18 = -4

Mass number = 14 + 15 = 29

Thus, the chemical symbol = Si^{-4}

For ion with 27 proton, 32 neutrons and 25 electrons

Net charge = 27 - 25 = +2

Mass number = 27 + 32 = 59

Thus, the chemical symbol = Co^{+2}

6 0
2 years ago
Why Group 18 elements on the periodic table rarely form compounds
lawyer [7]
Most elements on group 18 are the Noble Gases. They already have a complete last level with 8 electrones. Actually they can form compounds but only on the lab and they will not even last half a second.
4 0
3 years ago
Other questions:
  • Why does a hot water bottle feel warm? Options: Molecules in the hot water bottle are moving faster than molecules in the skin.
    8·2 answers
  • 1 scientific law and 1 scientific theory ?
    7·1 answer
  • what does it mean when the h3o+ to x- distance doesn't change much as the first 4 to 5 water molecules are added
    14·2 answers
  • What mass of slaked lime is needed to decompose 10 g of ammonium chloride to give 100% yield? Ca(OH)2 + 2NH4Cl → CaCl2 + 2NH3 +
    10·1 answer
  • Select all of the statements that are true about a buffer solution. Select one or more: a. A buffer solution reacts with basic s
    7·1 answer
  • How can you determine an object mechanical energy
    12·2 answers
  • What is the likely impact of water's high specific heat on life on Earth? (3 points)
    11·1 answer
  • If two oceanic plates move towards each other at a convergent boundary, then_____ may occur.
    15·2 answers
  • . <br> If the Moon orbited Earth twice as fast, how many high tides would occur in one day?
    13·1 answer
  • Hello i need help please Questions 1 and 2 (lipids)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!