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
Effectus [21]
3 years ago
14

An ionic compound forms when calcium reacts with iodine. If a sample of the compoundcontains 7.4 x 1021 calcium ions, how many i

odide ions does it contain
Chemistry
1 answer:
Elina [12.6K]3 years ago
7 0

Answer:

Below.

Explanation:

The formula for calcium iodide is CaI2.

The number of iodide ions is therefore:

2 * 7.4 x 1021

= 14.8 x 1021.

You might be interested in
What function does residual CO2 serve
Luba_88 [7]

The function does residual Co2 plays big part and in maintaining the body’s homeostasis. The addition of respiratory to reserve volume or residual volume.  The lung is the one that who protect the organs, so in exchange of oxygen and carbon dioxide.

6 0
3 years ago
How many grams of methane gas occupy a volume of 11.2 liters at stp
Anni [7]

Answer:

see the pic for the answer

4 0
3 years ago
What quantity of heat is transferred when a 150.0g block of iron metal is heated from 25.0°C to 73.3°C? What is the direction of
s344n2d4d5 [400]

The direction of heat flow is increased which means blocks temperature is higher and hotter than it was before

3 0
3 years ago
The density of copper is listed as 8.94g/cm​ 3​ . Two students each make three density determinations of samples of the substanc
amm1812

Answer:

Density of the copper = 8.94g/cm^3

Student A results = 7.3gm/cm^3 ,9.4 gm/cm^3 , 8.3gm/cm^3

Student B results = 8.4 gm/cm^3 , 8.8 gm/cm^3 , 8gm/cm^3

From the observations we conclude that

Student A's result is accurate but not  precise as the trials noted are not close to each other.

Student B's result is accurate and precise as the trials noted are close to each other.

Mean density of student A = 7.3 + 9.4 + 8.3 /3 = 8.33gm/cm^3

Mean density of student B = 8.4 + 8.8 + 8 /3 = 8.4 gm/cm^3

both the densities of A and B are 0.5 away from the actual density.

5 0
3 years ago
This element has an atomic number smaller than magnesium and 3 electrons in its valence shell
OverLord2011 [107]

Boron (B) is your answer.

6 0
4 years ago
Other questions:
  • While estimating the Caloric content of the chemical constituents present in the food item, the carbohydrate amount is discounte
    11·1 answer
  • How much heat is absorbed by a 56g iron skillet when its temperature rises from 15oC to 27oC?
    12·1 answer
  • How many milliliters of calcium, with a density of 1.55 g/mL, are needed to produce 98.5 grams of calcium hydroxide in the singl
    9·1 answer
  • What is the mass, in grams, of 1.4 mol W
    11·1 answer
  • How does temperature affect magnetism
    5·1 answer
  • How many grams of O2 are produced as 0.033 mol of water decompose
    14·1 answer
  • What is the difference between a chemical formula and a molecular formula.
    13·1 answer
  • What are specatator ions
    9·1 answer
  • Which of the following processes is involved in the formation of sedimentary rocks?
    9·2 answers
  • A sample of nitrogen occupies 10.0 liters at 25°C what would be the new volume at 20°C? 7.9 L Ob 9.8 L 10.2 L 10.6 L
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!