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
Ipatiy [6.2K]
2 years ago
5

HelpPlease I don’t understand

Mathematics
1 answer:
Simora [160]2 years ago
6 0
That is certainly confusing, what type of math is that?
You might be interested in
For every 2 hours that Robert spends studying for a math test he spends 3 hours working on English. If he spends 21 hours one mo
nataly862011 [7]

Answer:

31.5 hours studying English

Step-by-step explanation:

2 math hours  = 3 english hours

21 math hours = ? english hours

21/2 = 10.5

10.5 * 3 = 31.5

5 0
3 years ago
The molar mass of AlCl3 is 133.34 g/mol. How many molecules of AlCl3 are there in 2 g?
Mnenie [13.5K]

To solve this problem, we have to apply mole-concept to this and we would need the molar mass of AlCl3.  2g of AlCl3 contains 9.034*10^21 molecules.

<h3>Number of Molecules in 2g of AlCl3</h3>

The molar mass of AlCl3 is given as 133.34g/mol

Data;

  • mass = 2g
  • molar mass = 133.34g/mol

Using the mole concept, we can equate the molar mass to the number of molecules present in the entity.

133.34g = 6.023*10^2^3

If we equate this

133.34g = 6.023*10^2^3\\2g = x molecules\\x = \frac{2*6.023*10^2^3}{133.34} \\x = 9.034*10^2^1 molecules

From the calculations above, 2g of AlCl3 contains 9.034*10^21 molecules.

Learn more on mole concept here;

brainly.com/question/21150359

#SPJ1

5 0
1 year ago
What is the probability of rolling a 3 on a 6-sided 8)
adelina 88 [10]

Answer:

the chances of rolling a 3 are 1/6

the changes of not doing it is 5/6

7 0
3 years ago
How do you re-write 0.7 repeating as a simplified fraction?
Brums [2.3K]

Answer:

7/10

Step-by-step explanation:

because .7*10 = 70 and it would  be 70/100 so you simplify it to 7/10

3 0
3 years ago
Read 2 more answers
A stack of bricks is 3 1/2 feet high.
ololo11 [35]
Divide 42 inches by the total amount of inches in one brick
why you are dividing by 42 inches is because 3 1/2 ft is equal to 42 inches
4 0
3 years ago
Other questions:
  • FP!!!!!!!!!!!!!!!!
    14·2 answers
  • Yesterday, Nina's lunch cost $9.80 and she left a $1.47 tip. Today, Nina's lunch cost $12.60. If she tips the same rate that she
    10·1 answer
  • Sarah is hiking on a trail near her home. She traveled 5 miles before stopping for a break. After the break, Sarah plans on incr
    8·2 answers
  • Plzzz help me quick!!!
    8·1 answer
  • What's 1/2 + 1/3? Y'all please help me . And when or if you can give me the answer can you do step-by-step on how you did that s
    10·2 answers
  • A fencing company charges $22 per foot to install a wood fence.How much will it cost to install a wood fence around a rectangula
    13·1 answer
  • How do i solve this
    13·2 answers
  • Can someone please help me? I will mark brainliest. Random answers will be reported
    15·1 answer
  • Which of the following best describes the graph shown below?
    6·1 answer
  • Can someone explain ways i can graph a logarithmic function?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!