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
Wewaii [24]
3 years ago
8

Calculate the predicted density for calcium, ca, given the density of strontium, sr, (2.63g/cm3) and barium, ba, (3.65 g/cm3).

Chemistry
1 answer:
alisha [4.7K]3 years ago
4 0
Answer is: <span>the predicted </span>density for calcium is 1.61 g/cm³.

d(Sr) = 2.63 g/cm³; density for strontium.
d(Ba) = 3.65 g/cm³; density for barium.
Ar(Sr) = 87.62 atomic weight for strontium.
Ar(Ba) = 137.33; atomic weight for barium.
Ar(Ca) = 40.08; atomic weight for calcium.
d(Ba) - d(Sr) = 3.65 g/cm³ - 2.63 g/cm³. 
d(Ba) - d(Sr) = 1.02 g/cm³.
d(Ca) = d(Sr) - 1.02 g/cm³.
d(Ca) = 2.63 g/cm³ - 1.02 g/cm³.
d(Ca) = 1.61 g/cm³.
You might be interested in
Veronica is taking an average of 16 height measurements in a brand-new experiment. Which term is this the best example of?
Varvara68 [4.7K]

Answer:

Repetition

Explanation:

The best term to describe this example is repetition and not replication.

Most times, to obtain an accurate and precise reading which is reliable, scientist makes several repeated measurements. The average gives the most reliable representation of the phenomenon being tested.

This process is called repetition.

On the other hand, duplicating an experiment is replication. Experiments are replicated to proof their validity.

  • Since this is a brand new experiment where 16 height measurements are reported, we are dealing with a repetition situation.
4 0
3 years ago
Read 2 more answers
What does the ozone do for us? As in us humans?
dimulka [17.4K]
The ozone layer protects humans from harmful UV rays, because it acts as a sort of filter for any toxic or overpowering waves from damaging our skin. This goes for animals, as well.
6 0
3 years ago
Read 2 more answers
PLEASE HELP IT'S URGENT
yuradex [85]

Answer:

D

Explanation:

4 0
3 years ago
Read 2 more answers
16. Analysis of a sample of a covalent compound showed that it contained 14.4% hydrogen and 85.6% carbon by mass. What is the em
Andre45 [30]

Answer:a

Explanation:

3 0
3 years ago
Please help me with chemistry
jok3333 [9.3K]
I will, I am in a chemistry class right now. What’s up?
8 0
3 years ago
Other questions:
  • Which is the best example of predation?
    14·2 answers
  • Which method reduces carbon dioxide emissions by storing carbon dioxide for a long time?
    10·2 answers
  • Atoms in the same _____ of the periodic table share the same chemical properties
    9·1 answer
  • A doctor orders 4.0 mg of morphine. The vial of morphine on hand is 20. mg per 2.0 mL . How many milliliters of morphine should
    15·1 answer
  • The firm has never paid a dividend on its common stock, and it issued $2,400,000 of 10-year, non-callable, long-term debt in 201
    5·1 answer
  • Why do transitioning electrons release or absorb energy?
    15·2 answers
  • Yasmin's teacher tells her that the solubility of salt is 360 g/L at room temperature (25 °C). How can Yasmin make an unsaturate
    7·1 answer
  • 25 points!!!! How to separate kerosene and diesel from their mixture?
    10·1 answer
  • If 2.27 moles of bromine react with excess phosphorus, how many moles of phosphorus tribromide will be produced
    7·2 answers
  • Josh decided his glass of iced tea needed to be sweeter. He found two types of sugar he could use in the kitchen. There was a bo
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!