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
Olin [163]
3 years ago
15

Identify the number of significant figures in each measurement. Type the correct answer in each box. Use numerals instead of wor

ds.

Chemistry
2 answers:
Natalka [10]3 years ago
6 0

Answer:

92

98

35

35

Explanation:

Andrei [34K]3 years ago
5 0
............
92
98
35
35
You might be interested in
What controls which substances can move into and out of a cell?
erma4kov [3.2K]
The cell wall and nucleus
4 0
3 years ago
Vaporization is an endothermic process. Using the terms 'kinetic energy' and 'intermolecular forces', explain how the addition o
Novay_Z [31]
An endothermic process is a process that needs energy in order to proceed. This is the opposite of exothermic which is a process of releasing energy. During an endothermic process, the temperature of the system is increased thus exciting the molecules and allowing them to move faster. This will cause liquid to vaporize. 
5 0
3 years ago
I WILL GIVE BRAINLIST!!!!!![CM.04] A meteorologist observed satellite images to predict the weather in a city. She predicted two
weeeeeb [17]

The amount of snowfall depends on the right combination of temperatures and moisture in the air.

3 0
3 years ago
Determine el PH y el % de disociación de una solución de ácido débil, sabiendo que se disuelven 20 gramos del ácido (masa molar=
IceJOKER [234]

Answer:

pH = 4.27. Porcentaje de disociación: 0.03%

Explanation:

El pH de un ácido débil, HX, se obtiene haciendo uso de su equilibrio:

HX(aq) ⇄ H⁺(aq) + X⁻(aq)

Donde la constante de equilibrio, Ka, es

Ka = 1.65x10⁻⁸ = [H⁺] [X⁻] / [HX]

Como los iones H⁺ y X⁻ vienen del mismo equilibrio podemos decir:

[H⁺] = [X⁻]

[HX] es:

20g * (1mol/55g) = 0.3636moles / 2.100L = 0.1732M

Reemplazando es Ka:

1.65x10⁻⁸ = [H⁺] [H⁺] / [0.1732M]

2.858x10⁻⁹ = [H⁺]²

5.35x10⁻⁵M = [H⁺]

pH = -log[H⁺]

<h3>pH = 4.27</h3>

El porcentaje de disociacion es [X⁻] / [HX] inicial * 100

Reemplazando

5.35x10⁻⁵M / 0.1732M * 100

<h3>0.03%</h3>
5 0
2 years ago
2. Which of the following does not have a nucleus? a. prokaryotes b. eukaryotes c. prokaryotes and eukaryotes ​
qwelly [4]

Answer:

Erythrocytes

Erythrocytes do not contain a nucleus. This would make answer choice "A" correct. Erythrocytes are red blood cells and these cells differ from the other cells of the body because of the absence of the nucleus. All the other cells noted have nuclei.

Explanation:

Have A Wonderful Day !!

3 0
3 years ago
Read 2 more answers
Other questions:
  • Ide ores, such es ? ​
    9·1 answer
  • 2. Convert 6.578 x 1023 atoms of magnesium to moles.<br> 6.578 x 1023 atoms x<br> mol<br> atoms
    14·1 answer
  • Which best describes the motion of iron atoms in solid iron?
    11·1 answer
  • During boiling, bubbles appear in the liquid water. In the boxes below represent the
    9·1 answer
  • What element is undergoing reduction (if any) in the following reaction?
    7·1 answer
  • The the balanced equations to: solutions of lithium sulfate and potassium phosphate are mixed together to make lithium phosphate
    5·1 answer
  • How is the bond in F2 different from the bond in KCl?
    5·1 answer
  • I have a homework and I need help please.​
    15·1 answer
  • Why do we need digital technology in school?​
    15·1 answer
  • Give the name and symbol or formula of a Group 7A(17) element or compound that fits each description or use:(c) Weakest hydrohal
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!