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
Reil [10]
3 years ago
10

Potassium atomic number a) 27 b) 67 c) 19

Chemistry
1 answer:
BlackZzzverrR [31]3 years ago
6 0

Answer:

C

Explanation:

19 is the answer, because it is the atomic number of potassium. Hope it helps!

You might be interested in
describe two physical features of these planet that make them different from the other planet in the solar system
USPshnik [31]
We have water and also we are the perfect distance away from the sun and the moon which is unlike any other solar system
3 0
3 years ago
Why do we say the particles in a rock lying on the ground have kinetic energy and potential energy?
oksano4ka [1.4K]

Answer:

the particles of the rock possess kinetic energy as they stay in a place the particles also contain potential energy due to their position and arrangement This form of stored energy is responsible for keeping the particles together

Explanation:

hop it helps

3 0
3 years ago
Perform the following
stepan [7]

Answer:

.747

Explanation:

Answer can only have THREE sig dig because 12.9 has only three

9.635/12.9 = .747

8 0
2 years ago
What mass of na2co3 is present in 0.650 l of a 0.505 m na2co3 solution?
Vladimir79 [104]
V=0.650 L
c=0.505 mol/L
M(Na₂CO₃)=106.0 g/mol

the amount of substance of sodium carbonate is:
n(Na₂CO₃)=vc

the mass of sodium carbonate is:
m(Na₂CO₃)=n(Na₂CO₃)M(Na₂CO₃)

m(Na₂CO₃)=vcM(Na₂CO₃)

m(Na₂CO₃)=0.650*0.505*106.0=34.7945 g



3 0
3 years ago
A blacksmith quenches a horseshoe by dropping the red-hot iron object into a bucket of cold water. How will the blacksmith know
ddd [48]

when it is in the water it will make a hissing sound, and when it is not not making the sound they know it can pulled out of the water. hope this helps :)

8 0
3 years ago
Other questions:
  • A group of engineers run a trial test on a space probe built for measuring the surface temperature of the sun. After the trial,
    12·2 answers
  • Why do ionic compounds have better solubility in water than molecular compounds?
    5·1 answer
  • How many liters of gas are contained in 0.987 mols of Krypton?
    11·1 answer
  • Hydrocarbons are compounds that contain
    11·1 answer
  • Which is true for a substance that absorbs energy?
    13·1 answer
  • Question 1
    7·1 answer
  • Need these solved ASAP please​
    8·1 answer
  • Write a hypothesis statement about the relationship between the number of mushrooms and the concentration of heavy metals in the
    14·1 answer
  • According to the kinetic theory of gases, an ideal gas molecule
    7·2 answers
  • The electron configuration that belongs to the atom with the lowest first ionization energy is?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!