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
IgorLugansk [536]
2 years ago
8

Do you really get 7 years of bad luck if you crack a mirror :(

Chemistry
1 answer:
Mazyrski [523]2 years ago
4 0

Answer:

nope its a myth don't worry :)

You might be interested in
The boiling point of water is 100ºC. The boiling point of acetone is 56ºC. Which statement about distilling a mixture of acetone
Anika [276]

Answer:

I think  Acetone will be  captured and cooled.

Explanation:

Distillation is a method of separation based on the difference in boiling point of two liquids.

The liquid that has a lower boiling point is first separated from the mixture. It vaporizes, cooled and collected before the liquid that has a higher boiling point.

In this case, acetone is captured and cooled before water since it has a boiling point of 56ºC and water has a boiling point of 100ºC.

3 0
1 year ago
ΔH for the reaction below is -826.0 kJ/mol. Calculate the heat change when a 69.03-g sample of iron is reacted.4Fe(s) + 3 O2(g)
Anuta_ua [19.1K]

Answer:

c. -1020.9 kJ

Explanation:

4Fe (s) + 3 O₂ (g) --> 2 Fe₂O₃(s)         ΔH  =  -826.0 kJ/mol.

atomic weight of iron = 56

69.03 g = 69.03 / 56

= 1.23268 moles

Heat released by 1.23268 moles

= 1.23268 x 826.0

= -1020.9 kJ .

4 0
3 years ago
Bright headlights show objects how far away
bija089 [108]

well according to what i know....headlights only let you see about 350 feet ahead...hope it helps :)

7 0
3 years ago
Read 2 more answers
Which best describes how isotopes of the same element differ?
Tasya [4]
It would be C!!!!!!!!!!!!!
8 0
3 years ago
SOICHIOMETRY HOW MANY MOL OF NITROGEN DIOXIDE ARE REQUIRED TO PRODUCE 2.75 MOL NITRIC ACID? 3NO2+ H20→ 2HNO3+ NO
pishuonlain [190]

Answer: C

Explanation: Hope this help :D

4 0
2 years ago
Other questions:
  • You have two 500.0 ml aqueous solutions. solution a is a solution of a metal nitrate that is 8.246% nitrogen by mass the ionic c
    12·1 answer
  • A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the followi
    9·1 answer
  • An ionic bond results from electrical attraction between
    15·1 answer
  • When an ionic compound is named or its formula is written, what sort of element is placed first? What is the charge on its ions?
    12·1 answer
  • Amino acids can be synthesized by reductive amination. Draw the structure of the organic compound that you would use to synthesi
    15·1 answer
  • What is the pH of an aqueous solution that has a hydroxide ion concentration of 1.0 x 10^-5 M?​
    11·1 answer
  • If a neutral atom has 5 protons (+) and 5 neutrons (0), how many electrons does it have?
    10·1 answer
  • A liquid element whose molecules consists of one atom​
    12·2 answers
  • Metals,nonmetals, metalloids
    8·1 answer
  • How does marketing affect the consumer mindset?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!