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
Dafna1 [17]
3 years ago
7

5. How many significant figures are in the measurement +0.500 mg?

Chemistry
1 answer:
poizon [28]3 years ago
3 0
There are 3 significant figures
You might be interested in
An average human being has about 5.0 L of blood in his or her body. If an average person were to eat 37.7 g of sugar (sucrose, ,
Viktor [21]

Answer: 0.0220275 M

Explanation:

So, we are given the following data or parameters which are going to help in solving this particular Question/problem.

=> Averagely, we have the volume = 5.0 L of blood in human body .

=> Mass of sugar eaten = 37.7 g of sugar (sucrose, 342.30 g/mol).

Therefore, the molarity of the blood sugar change can be calculated as below:

The molarity of the blood sugar change = (1/ volume) × mass/molar mass.

Thus, the molarity of the blood sugar change = (1/5) × 37.7/342.30 = 0.0220275 M.

6 0
3 years ago
Do the same volumes of H2O and H2SO4 have the same number of molecules?
Romashka [77]
No, they do not. Hope I helped! :)
5 0
3 years ago
What volume will 20.0g of Argon occupy at STP?
Yuki888 [10]
Molar mass Argon = 39.948 g/mol

1 mol ------ 39.948 g
  mol ----- 20.0 g 

mol = 20.0 * 1 / 39.948

= 0.5006 moles

1 mol --------------------- 22.4 L ( at STP )
0.5006 moles ------------- L 

L = 0.5006 * 22.4

= 11.21 L

hope this helps!
6 0
3 years ago
Energy is transferred
Andrei [34K]
True is the right oneee
6 0
2 years ago
Identify the products in the following chemical resction 2NaHCO3 + CaCI2 --> CaCO3 + CO2 + 2NaCI + H2O​
Radda [10]

the products are:

CaCO3 Calcium Carbonate

CO2 carbon dioxide

NaCI Sodium chloride

H2O​ Water

8 0
3 years ago
Other questions:
  • Which of the following conditions increases the frequency of collisions without changing the energy or concentration of reactant
    5·2 answers
  • Substances containing which type of bond have the highest melting point?
    11·1 answer
  • You are writing a report on whether global warming really exists. Which of the following resources would be the most scientifica
    5·1 answer
  • What are the limitations of Bronsted-Lowery concept???
    5·2 answers
  • Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO (s) H 2O (l) Ca(OH) 2 (s) In a parti
    14·1 answer
  • A ____usually requires calculations that are too complicated to do by<br>hand. ​
    15·1 answer
  • When energy changes forms there is always some thermal energy that is produced that cannot be used. what type of energy is it?
    6·1 answer
  • Which of the following describes the energy transformations that occur when a toaster is used to make toast?
    5·2 answers
  • please explain why boiling point melting are not considered chemical properties but are considered physical properties of matter
    8·1 answer
  • What would happen if the digestive system was not working?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!