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
Andru [333]
2 years ago
8

154 pm is greater than 7.7 x10^-9 A. True B. False

Chemistry
1 answer:
Nesterboy [21]2 years ago
7 0
The answer is false.
You might be interested in
Fractional distillation of a mass mixture of 10 g water and 10 g perchloric acid would yield a distillate with what composition
jek_recluse [69]

Azeotrope is a mixture of two or more liquids whose proportions cannot be changed by simple distillation.

Explanation:

Nitic acid and water is an example of azeotrope. The composition of 68% of nitric acid and 32% of water by mass in a boiling point of 393.5k.

The composition of perchloric acid (71.6%) and water boils at 203°c. Pure iron solution weights about 10g is placed in a beaker, hydrochloric acid and nitric acid mixtures are added and heated to dissolve. Add perchloric acid until it evaporate and produces white smoke.cool it down add water and dissolve the salt.

8 0
3 years ago
Trial and error learning is an example of
lbvjy [14]

Answer:

A is your answer i believe

Explanation:

8 0
3 years ago
Which is the stronger acid in each of the following pairs? Explain your reasoning.
Makovka662 [10]

Answer:p-hydroxybenzaldehyde is stronger acid to phenol

para-cyanophenol is stronger acid to meta-cyanophenol

o-fluorophenol is stronger acid to p-fluorophenol.

Explanation:

The PKa tool relative to Ph are used to contrast the pairs.

The pKa of phenol is 10. The pKa of p-hydroxybenzaldehyde is 9.24

The pKa for meta-cyanophenol is 8.61 and the pKa for para-cyanophenol is 7.95. 

The pKa value of o-fluorophenol is 8.7, while that of the p-fluorophenol is 9.9. It's obvious that the inductive effect is more dominant at ortho-position, which results in a more acidic nature

The pKa is the pH value at which a chemical species will accept or donate a proton. The lower the pKa, the stronger the acid and the greater the ability to donate a proton in aqueous solution.

6 0
3 years ago
In an anatomy class, a student has been learning about the bones of the body. While taking a test, he needs to identify the ster
storchak [24]

Answer:

The term “flat bone” is somewhat of a misnomer because, although a flat bone is typically thin, it is also often curved. Examples include the cranial (skull) bones, the scapulae (shoulder blades), the sternum (breastbone), and the ribs. Flat bones serve as points of attachment for muscles and often protect internal organs.

HOPE THIS HELPS!!! :D

3 0
2 years ago
Read 2 more answers
How do I calculate the molecular and molar masses of compounds​
ludmilkaskok [199]

Answer:

The molar mass is the mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol). The molar mass of a compound can be calculated by adding the standard atomic masses (in g/mol) of the constituent atoms.

6 0
3 years ago
Other questions:
  • Refraction occurs when the speed of light changes as it travels between mediums.<br><br><br> T<br> F
    10·1 answer
  • What is a synonym for product (chemistry)
    13·2 answers
  • How much energy is required to heat a frozen can of juice (360 grams- mostly water) from 0 degrees Celsius ( the temperature of
    14·1 answer
  • What is the concentration of chloride ion in a 2.0 M solution of calcium chloride
    6·2 answers
  • The chemical equation of the reaction between Hydrogen and Oxygen is given below
    7·1 answer
  • A weather balloon contains 13.0 L of helium at a pressure of 1.01 atm and a temperature of 21.0°C. If this had
    15·1 answer
  • How many moles at of a gas will occupy 2.5 L at STP?
    13·1 answer
  • use the principles of atomic structure and/or chemical bonding to explain each of the following. in each part, your answers must
    8·1 answer
  • Which statement is TRUE about the following reaction.
    10·1 answer
  • How many moles of diphosphorus
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!