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
Dominik [7]
3 years ago
15

Calcium drawing look like

Chemistry
1 answer:
leva [86]3 years ago
7 0
Not the best drawing but hope thats correct

You might be interested in
10. A water molecule is made up of one oxygen atom and two hydrogen atoms. Why is water
Norma-Jean [14]
Its either C or D I’m stuck on this.
6 0
3 years ago
Read 2 more answers
What mass of ether will be produced is 221 g of ethanol reacts with a 66 percent yield?
Keith_Richards [23]
@pandamille help her please!!!!
5 0
3 years ago
A scientist collected the data shown in the graph above. How is the graph useful to the scientist?
Vladimir79 [104]
The scientist can analyze that data and help other scientists with his research
7 0
3 years ago
The process by which particles in a solution spread out evenly is called?
padilas [110]

Answer:

this is your answer.....

7 0
3 years ago
When 15.3 g of sodium nitrate, NaNO3,was dissolved in water in a calorimeter, the temperature fell from 25.00oC to 21.56oC. If t
satela [25.4K]

Answer:

20.468 kilo Joules is the enthalpy change when one mole of sodium nitrate dissolves.

Explanation:

Heat lost by solution ad calorimeter = Q

Heat capacity of solution ad calorimeter = C = 1071 J/°C

Change in temperature = ΔT = 21.56°C - 25.00°C = -3.44°C

Q=C\times Delta T

Q=1071 J/^oC\times (-3.44^oC)=-3,684.24 J

Heat gained by sodium nitrate = -Q = -(-3,684.24 J)=3,684.24 J

Moles of sodium nitrate = \frac{15.3 g}{85 g/mol}=0.18 mol

When 0.18 mole of sodium nitrate was dissolved in water 3,684.24 joulesof heat was absorbed by it.

Then heat absorbed by 1 mole of sodium nitrate :

\frac{3,684.24 J}{0.18}=20,468 J=20.468 kJ

1 J = 0.001 kJ

20.468 kilo Joules is the enthalpy change when one mole of sodium nitrate dissolves.

8 0
3 years ago
Other questions:
  • Five different substances are given to you to be dissolved in water. Which substances are most likely to undergo dissolution in
    13·1 answer
  • A(n)<br> wave carries energy through matter
    9·2 answers
  • Be sure to answer all parts. part 1 out of 4 how many nucleophilic centers are present in methanol (ch3oh)?
    11·2 answers
  • How many molecules are contained in a 7.20-g sample of dimethylmercury?
    8·2 answers
  • .Photography first used at a crime scene. before the 1800s during the 1800s 1900-1988 1990-present
    10·2 answers
  • Determine the total number of atoms contain in a 2.00 moles of Ni
    5·1 answer
  • Quinine is a natural product extracted from the bark of the cinchona tree, which is native to South America. Quinine is used as
    9·1 answer
  • 1 loop in the primary coil and 8 loops in the secondary. If the secondary voltage is 120 V, what must be the primary voltage
    10·1 answer
  • 9. Identify which properties of each of the following elements make them ideal for their uses. KIU A (a) copper and aluminum for
    8·1 answer
  • Guys I know this is not an educational question, but guess what? &gt;.&gt;
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!