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
Bumek [7]
3 years ago
11

PLZ help! 10 Points is all i could afford

Chemistry
1 answer:
LekaFEV [45]3 years ago
4 0

Answer:

d

Explanation:

protons and neutrons are in the nucleus which i where most of the mass of an atom comes from

You might be interested in
pyrite is a mineral composed of 46.5 mass % iron and 53.5 mass % sulfur. determine the empirical formula for calcocite.
padilas [110]

The empirical formula for pyrite is FeS2.

HOW TO CALCULATE EMPIRICAL FORMULA:

  • The empirical formula represents the simplest whole number ratio of constituents element of a compound. The empirical formula of pyrite can be calculated as follows:

46.5 mass % Fe = 46.5g of Fe

53.5 mass % S = 53.5g of S

  • Next, we divide each element's mass value by its molar mass

Fe = 46.5g ÷ 56g/mol = 0.83mol

S = 53.5g ÷ 32g/mol = 1.67mol

  • Next, we divide each mole value by the smallest (0.83mol)

Fe = 0.83mol ÷ 0.83 = 1

S = 1.67mol ÷ 0.83 = 2.014

Approximately, the ratio of Fe to S is 1:2. Therefore, the empirical formula of pyrite is FeS2.

Learn more at: brainly.com/question/14044066?referrer=searchResults

3 0
2 years ago
How many electrons in an atom can have each of the following quantum number or sublevel designations?
lutik1710 [3]

Answer: a:6 electrons, b:10electrons, c: 2electrons

Explanation:

1.Principle quantum number(n)

n is the number of shell, it is a positive integer. The maximum number of electrons in a shell is 2(n2)

2.Azimuthal quantum number(l)

l is the number of subshell in the principal shell

The name of subshell are s, p, d, f

The number of nodes in each subshell is

s is l=0, p is l=1, d is l=2, f is l=3.

Each shell can have 2 x l + 1 sublevels, and each sublevel can accommodate maximum of 2 electrons and have two electrons.

A. n=2, l=1 then 2 x 1 + 1= 3 subshell, 3*2= 6 electrons in the p subshell

b. 3d, d is l = 2 then 2 x 2 + 1 = 5 sublevels, 5*2=10 electrons in the d subshell

c. 4s, s is l=0 then 2 x 0 + 1 = 1 sublevel, 1*2=2 electrons in the s subshell.

6 0
3 years ago
What happens if you try to move the atoms very close to each other?
stellarik [79]
They push away from each other or repel due to the same charge they have.
4 0
3 years ago
Explain what WHMIS is
White raven [17]
Workplace Hazardous Materials Information System is the answer to this question. Hope it helps :)
7 0
3 years ago
An enzyme is: a. A biological reactant b. A biological product c. A biological catalyst d. a biological co-factor
vovangra [49]
It is <span>a substance produced by a living organism that acts as a catalyst to bring about a specific biochemical reaction.
So I think C matches the discription </span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • For the following reaction, 4.51 grams of water are mixed with excess silicon tetrafluoride. The reaction yields 8.73 grams of h
    11·1 answer
  • 50 POINTS
    8·2 answers
  • From which sublevel are electrons removed when a zn atom in the ground state is oxidized?
    10·1 answer
  • What type of bonding occurs in a sample of pure sodium, ? In other words, how is one sodium atom held to another sodium atom? A.
    12·1 answer
  • Predict the formula for a compound made from X^2+ and Y^3-
    9·1 answer
  • Calculate the pH of each solution at 25∘C
    8·1 answer
  • What is the theoretical yield of aluminum oxide if 3.00 mol of aluminum metal is exposed to 2.55 mol of oxygen?
    15·1 answer
  • Name two metalloids that are semiconductors
    6·1 answer
  • Select True or False.<br> The Sun is like the stars we see at night.<br> False<br> True
    13·2 answers
  • If an emergency vehicle passes you in traffic, just as it passes you the pitch of
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!