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
Zinaida [17]
3 years ago
6

Which pair of elements are the most similar? A. Ca and F B. Na and Cl C. Ne and Ar D. K and Ca

Chemistry
1 answer:
Vinil7 [7]3 years ago
8 0

Answer:

c

Explanation:

You might be interested in
What type of bonding is found in the compound of2?
Ratling [72]

Answer:

chemical bond

Explanation:

because atom can join together by forming a chemical bond

7 0
3 years ago
Why there are only 20 amino acids, although a amino acid is coded by a single codon with three bases. That means by permutation,
snow_lady [41]
In nature there are many more variations amino acids than the simple 20 found in humans. However, when analyzing the human genome sequence, there is a code for all 64 permutations (4^3), only some of them share amino acids. This is a safe-guard against mutations of one or two nucleotides. For example, the amino acid Alanine is coded with four different nucleotide sequences: GCA, GCC, GCG, GCU. Also some amino acids code the same like UUU &UUC
5 0
3 years ago
What is the mass of carbon in 500. g of octane?
denis23 [38]

The answer is: the mass of carbon is 420.6 grams.

m(C₈H₁₈) = 500 g; mass of octane.

M(C₈H₁₈) = 114.22 g/mol; molar mass of octane.

n(C₈H₁₈) = m(C₈H₁₈) ÷ M(C₈H₁₈).

n(C₈H₁₈) = 500 g ÷ 114.22 g/mol.

n(C₈H₁₈) = 4.38 mol; amount of octane.

In one molecule of octane, there are eight carbon atoms:

n(C) = 8 · n(C₈H₁₈).

n(C) = 8 · 4.38 mol.

n(C) = 35.02 mol; amount of carbon.

m(C) = 35.02 mol · 12.01 g/mol.

m(C) = 420.6 g; mass of carbone.

5 0
3 years ago
I need help with this!!!
scZoUnD [109]
11- Form of energy that can be reflected or emitted from objects through electrical or magnetic waves.

12-Energy that is caused by moving electric charges.

13-Energy stored in the bonds of chemical compounds.

I only know those. Sorry hoped I helped a little! :)
5 0
3 years ago
When Xavier places his hands near a light bulb, he notices that certain areas around the light bulb are warmer than others.
Artemon [7]

Answer:

because of conduction. The areas to the sides of the light bulb are warmest because of convection. The area directly above the light bulb is warmest because of conduction. The area directly above the light bulb is warmest because of convection

6 0
3 years ago
Other questions:
  • Which intermolecular force would cause the highest boiling point?
    6·1 answer
  • Which of the following is altered by a catalyst?
    10·1 answer
  • PLS HELP ASAP TY. What kind of bond would many atoms of the same metal make?
    13·1 answer
  • What is the total number of atoms in a molecule of CH3OH?<br> one<br> three<br> four<br> six
    5·2 answers
  • The density of gold is 19.3 g/cm3. what volume would 131.2 g of gold have?
    8·1 answer
  • How much is one liter
    8·1 answer
  • How many moles of C6H12O2 are needed to get 12 moles of CO2
    12·1 answer
  • A reaction produces 74.10 g Ca(OH)2 after 56.08 g CaO is added to 36.04 g H2O. How should the difference in the masses of reacta
    10·1 answer
  • 8. Well-aerated soils have the _______________ smell of good soil.
    11·1 answer
  • How many mg is 76.0 kg? Express your answer in scientific notation. Use the ^ symbol before the exponent, eg 1x10^3
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!