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
vodka [1.7K]
3 years ago
15

What period is Pb in

Chemistry
1 answer:
ad-work [718]3 years ago
4 0

Pb (lead) is in the 6th period

(please give brainliest if this helped you)

You might be interested in
Contrast a plant cell with an animal cell. How can you tell them apart
nlexa [21]
The main differences between a plant cell and animal cells is that plant cells have more of a rectangular shape because the cell wall is more rigid. While animal cells have more of a circular or irregular shape because they don't have a cell wall. Plant cells usually have one or more large vacuoles, while animal cells have smaller vacuoles if any are present.
6 0
3 years ago
An aqueous solution of blue copper(II) ions can react with chloride ions to form a yellow copper compound. The ionic equation fo
klio [65]
Since the forward reaction is endothermic (heat is consumed in the reaction) that means that the enthalpy change for the forward reaction is a positive value.
Therefore, i would say that the reverse or backward reaction is exothermic (heat is released in the reaction to the sorroundings) and that the enthalpy change is a negative value.
5 0
3 years ago
Which of the following elements is a highly reactive nonmetal? A. iron (Fe) B. sodium (Na) C. flourine (F) D. helium (He)
devlian [24]

It's C. flourine (F)

4 0
3 years ago
Read 2 more answers
Which compound is a carbohydrate. Nucleotide or protien or starch or amino acid
marshall27 [118]
Starch is carbohydrate
3 0
3 years ago
Sorry its kinda hard to see
galina1969 [7]

Answer:

Volume: 20!

Density: 2!

Explanation:

Volume is how much a liquid can take up space in a container! so 50- 30= 20! then the mass is 10, do 20 divided by 10 and u get 2! for the density!

4 0
2 years ago
Other questions:
  • A) For the following reaction, K > 1. Classify each of the reactants and products based on their strength as Bronsted-Lowry a
    6·1 answer
  • A method used by the U.S. Environmental Protection Agency (EPA) for determining the concentration of ozone in air is to pass the
    15·1 answer
  • A 4.55 l sample of water contains 0.115 g of sodium ions. determine the concentration of sodium ions in ppm if the density of th
    6·2 answers
  • 1,5,25,125 what’s the pattern rule and extend by 3 more numbers
    12·1 answer
  • Root nodules are associations between bacteria and plant roots responsible for
    9·1 answer
  • When silver coins are found in ancient shipwrecks, they are coated with a black crust. What question could you ask to help you d
    7·1 answer
  • What is the ground-state electron configuration of chlorine and the number of valence electrons in it?
    10·1 answer
  • Insertion mutation definition ?
    5·2 answers
  • Which of the following would increase the intensity of the tornado?
    11·1 answer
  • What is the role of neutrons in the nucleus? Be specific, there are two things the neutron does for the atom.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!