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
Maru [420]
3 years ago
8

How many atoms doesCo(NO3)2 have

Chemistry
2 answers:
svet-max [94.6K]3 years ago
7 0
The answer is 9. Calcium nitrate is made up
of 3 different elements that equal 9 atoms.
Leno4ka [110]3 years ago
5 0
9 (I had this on a test and got it right)
You might be interested in
What are the products of photosynthesis?
gtnhenbr [62]

Answer:

Glucose also called(Energy)

4 0
4 years ago
you have 30.0 grams of a chemical element. After a certian amount of time, you have 3.75 grams remaining. How many half lives ha
Salsk061 [2.6K]

Explanation:

The chemical elements goes from 30g to 15g to 7.5g to 3.75g.

Therefore, it has gone through 3 half lives.

5 0
3 years ago
Why do different substances heat up and cool down at different rates?
shepuryov [24]
Each substance has its own unique structure and properties that are based on these structures.

One of those most important properties is the "specific heat" value.
Specific heat is defined as the amount of heat required to raise the temperature of a unit mass of a substance by 1 degree Celsius.

Each substance has its own specific heat. The higher the specific heat of a substance, the longer it will take to heat up or cool down.

Hope this helps :)
7 0
4 years ago
What is the mass of a 4.50-μci 146c source? the half-life of 146c is 5730 yr.
saveliy_v [14]
The activity of the sample is:
R₀ = 4.5 x 10⁻⁶ Ci (3.70 x 10¹⁰ decays/s / 1 Ci)
     = 166500 decays / s

The number of nuclei is:
N₀ = (166500 decays/s) / (5730 yr * 3.154 x 10⁷s /1yr)  = 9.2 x 10⁻⁷

The mass of a ₆C¹⁴ source is:
m = N₀m₀ = (9.2 x 10⁻⁷) * (2.34 x 10⁻²⁶) = 2.16 x 10⁻³² kg

7 0
3 years ago
What structure would you only find in plant cells?
KengaRu [80]

Answer:

vacuole, cell wall, and plastids such as chloroplasts.

Explanation:

hope this helps u

8 0
3 years ago
Read 2 more answers
Other questions:
  • What are the properties of compounds, mixtures, solutions, and pure substances? please answer!
    8·2 answers
  • A reaction is first order. If the initial reactant concentration is 0.0200 M, and 25.0 days later the concentration is 6.25 x 10
    5·1 answer
  • Describe one of the major differences between oceanic crust and continental crust.
    9·1 answer
  • How many grams of water would there be in 100.0g of hydrate? How many moles?
    6·2 answers
  • 65 g of NaOH is dissolved to make 500 mL of solution. Find moles of NaPH and Molarity of solution.
    10·1 answer
  • Which drawing is structural model of C3H8?
    8·1 answer
  • ZnCI2 + H2SO4 = ZnSO4 + HCI
    14·2 answers
  • Which equation represents a combustion reaction?
    9·2 answers
  • 7. The force that attracts objects to each other
    7·1 answer
  • What are the consequences of building a equitable water sanitation
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!