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
soldier1979 [14.2K]
3 years ago
11

How many atoms are in 123 g of calcium

Chemistry
1 answer:
Keith_Richards [23]3 years ago
5 0

Answer:

Molar mass of Ca = 40 g / mol , given 123 g Ca is 123/40= 3.075 moles,

1 mole = 6.022 * 10^23 atoms, so 3.075 moles Ca= 18.51*10^23 atoms

Explanation:

You might be interested in
A chlorine concentrations of 0.500 ppm is desired for water purification. What mass of chlorine must be added to 2500 L of water
Readme [11.4K]

Answer:

50g

Explanation:

pls mark me brainliest right

5 0
3 years ago
How many meters are in one kilometer
saul85 [17]

there are 1000 meters in one km

8 0
3 years ago
Read 2 more answers
What happened to your projectile if you changed the liquid​
svp [43]

Answer:

Actors affecting the flight path of a Projectile are:

  •    Gravity.
  •    Air Resistance.
  •    Speed of Release.
  •    Angle of Release.
  •    Height of Release.
  •    Spin

Hope it's Helpful

Mark Me Brainliest

5 0
3 years ago
When the metal was placed in the calorimeter, its temperature dropped to the equilibrium temperature. Calculate the change in te
MAVERICK [17]

Answer:

1st one= -79.6

2nd one= -80

3rd one= -81.2

Explanation:

Good luck!

5 0
3 years ago
Read 2 more answers
2002040_MIJ COMP SCI 1_SEM 1 CR_PY
Slav-nsk [51]

Answer:

a scientific question

Procedure

Conclusion.

Explanation:

Scientific investigation is usually carried out to explain and give answers to natural phenomenon. Now, this scientific investigation is performed through the three main types as described in the question.

With that being said, the most common parts of all types of investigation are :

1. Scientific question: In this stage, questions are usually asked on the basis of observation made which could be answered.

2. Procedure: In this stage, the dimension of the steps are followed to answer and test the scientific question.

3. Conclusion: This is the primary aim that we check when done with our sample values

4 0
3 years ago
Other questions:
  • 4. If the earth were to heat up by 3 degrees, approximately how much would the sea level rise?
    13·1 answer
  • A lake in rural maine drops in ph from 7 to 5 as a result of acid rain falling into it. how has the h+ ion concentration change
    15·1 answer
  • On a periodic table, element names are represented by:
    13·1 answer
  • Which of the following is not a part of kinetic molecular theory?
    8·2 answers
  • What happens when an atom forms an ion?
    7·2 answers
  • I don't understand this part? Plz help =)
    8·1 answer
  • A scientist has a container with a substance inside. At first, the molecules in the substance move away from each other. Later,
    7·1 answer
  • Please help if you can.
    5·1 answer
  • How to find weight with volume and density ​
    14·1 answer
  • 1. The following results were obtained in analysis of iron ore for iron: 34.79%, 34.86%, 34.80%, 34.53% and 34.76% Calculate the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!