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
sveta [45]
3 years ago
12

How many molecules of CaCi2 are equivalent to 75.9 grams

Chemistry
1 answer:
horsena [70]3 years ago
8 0
<em>M CaCl₂: 40+(35,5×2) = 111 g/mol</em>


6,02·10²³ molecules ---------- 111g
X molecules --------------------- 75,9g
X = (75,9×<span>6,02·10²³)/111
X = <u>4,116</u></span><span><u>·10²³</u> molecules of CaCl</span>₂

:)
You might be interested in
Is supports combustion a chemical or physical property
Gennadij [26K]
<span>Supporting combustion is a chemical property because it involves a chemical reaction that can only be reversed with another chemical reaction.</span>
4 0
3 years ago
Read 2 more answers
Turgor, an internal stimulus, refers to —
VladimirAG [237]

Answer:

which has a lower freeging point oxgyen or ethanol

6 0
3 years ago
Different amounts of ice was added to several samples of water. The results are shown in the table. Which conclusion can be draw
Yakvenalex [24]

The conclusion which can be drawn from the results that more ice added caused a greater change in temperature.

<h3>Why temperature of substance changes?</h3>

Temperature of any substance will change if some amount of energy is absorbed or released by that substance in the form of heat.

If in simple water, we add some amount of ice then energy or heat from the whole mixture will released as a result of which temperature of the water decreases. And decrease in temperature will depend on the amount of added ice.

Hence, more ice added caused a greater change in temperature.

To know more about change in temperature, visit the below link:

brainly.com/question/24719561

#SPJ1

3 0
2 years ago
Which element has 13 protons and 8 neutrons?
WINSTONCH [101]

Answer:

only thing close I can see would be aluminun

Explanation:

atomic number of 13 and 8 2nd electrons in its shell.

5 0
3 years ago
Read 2 more answers
When iron rusts in air iron3 oxide is produced. How many moles of oxygen react with 28.0 mol of iron in the rusting reaction 4fe
Marrrta [24]
This the balanced equation based on the question 4Fe + 3O_2  -\ \textgreater \ 2Fe_2O_3.

We then proceed with the following calculations

28.0molFe*(\frac {3molO_2}{4mol Fe})= 21molO_2

The answer is 21molO_2 is produced.
5 0
3 years ago
Other questions:
  • Determine the volume of 0.150 M NaOH solution required to neutralize each sample of hydrochloric acid. The neutralization reacti
    8·2 answers
  • According to Dalton's atomic theory, which statement is true about atoms of the same element? They can be destroyed. They have i
    8·2 answers
  • The minerals are sorted into two groups. Which property are they sorted by?
    5·1 answer
  • How many moles of argon are equal to 3.01×1023 atoms
    10·1 answer
  • The process of photosynthesis coverts____energy from the sun into____energy
    15·2 answers
  • What does the "R-" represent?
    9·2 answers
  • What variables(s) are constant for charler's law?
    7·1 answer
  • Cuántos gramos de cloruro de magnesio se pueden obtener si se hacen reaccionar 354,9g de cloruro de titanio (IV) y 285g de magne
    5·1 answer
  • What is a climax community? no plagiarism.
    12·2 answers
  • Which atom would be neutral?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!