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
maw [93]
2 years ago
15

Pls help me will give brainliest.

Chemistry
2 answers:
Artyom0805 [142]2 years ago
7 0

Answer:

C. Earth's Mantle

Explanation:

AlexFokin [52]2 years ago
7 0

Answer:

C

Explanation:

Earth's mantle is the correct answer

You might be interested in
Why is fractional distillation not used to produce drinking water from sea water?
Natasha_Volkova [10]

Answer:

Please mark me brainliest. the answer is

Explanation:

The problem is that the desalination of water requires a lot of energy. Salt dissolves very easily in water, forming strong chemical bonds, and those bonds are difficult to break. Energy and the technology to desalinate water are both expensive, and this means that desalinating water can be pretty costly.

4 0
2 years ago
Four different solutions have the following boiling points. Which boiling point corresponds to a solution with the lowest freezi
UNO [17]
What are the temperatures?
8 0
3 years ago
An atom has the following electron configuration 1s2s2sp63s23p64s2 How many valance electrons does this atom have?
JulijaS [17]

Answer:

The electron configuration for this atom is Calcium, which has 2 valence electrons.

Explanation:

Following the periodic table and with the electron configuration, you will end up with calcium, which has 2 valence electrons. (Always follow the electron configuration from left to right! It begins at hydrogen, then to helium... and so on.)

1s2 -> He....

2s2 -> Be....

2p6 -> Ne...

3s2 -> Mg...

3p6 -> Ar...

4s2 -> Ca.

6 0
3 years ago
When the pressure that a gas exerts on a sealed container changes from 22.5 psi to ? psi, the temperature changes from 110 degre
natta225 [31]
Using Gay-Lussac's Law, pressure is proportional to (absolute) temperature in Kelvin. We first convert the temperature values to Kelvin: 110 C = 383.15 K, while 65 C = 338.15 K.
P1/T1 = P2/T2
22.5/383.15 = P2/338.15
P2 = 19.9 psi
8 0
3 years ago
What is the easiest way to explain molecular compounds and covalent bonds also adding information about valance electrons?
wlad13 [49]

Answer:

Molecular compounds consist of two or more nonmetals. The nonmetals that make up a molecular compound are held together by covalent/molecular bonds. Covalent bonds is known as the "sharing" of valence electrons between two or more chemical species. Valence electrons are shared so that the atoms of the compound can become stable, much like how ionic bonds transfer valence electrons between atoms to achieve stability.

5 0
3 years ago
Other questions:
  • The chemical name for laughing gas is dinitrogen oxide. The two elements found in a sample of this gas are and .
    13·1 answer
  • As someone falls toward the Earth, what happens to their GPE?
    5·1 answer
  • What do vacuoles and golgi bodies have in common?
    5·2 answers
  • Consider the assumption that the four molecules of interest have approximately the same molar mass and very similar polarizabili
    5·1 answer
  • Check all the examples below that represent a physical property of matter​
    12·2 answers
  • How did Albert Einstein explain the photoelectric effect?
    7·2 answers
  • How are air resistance and friction similar?
    8·2 answers
  • A pure substance that is present before a reaction but not after <br> Super Confused
    15·1 answer
  • A codon that stops the synthesis of a protein molecule
    5·1 answer
  • What best describes these three molecules? they are not isomers. they are structural isomers. they are geometric isomers. they a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!