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
Eduardwww [97]
3 years ago
9

How many significant figures are in the measurement 40,500 mg?

Chemistry
1 answer:
schepotkina [342]3 years ago
3 0

b) three

this is because all integers are sig figs, and all numbers between integers are sig figs. This makes the 40,5 part of 40,500 significant. Place holder zeroes that are not after a decimal are not significant, so the last two zeroes of the number are not significant.

You might be interested in
A first order reaction has a rate
EleoNora [17]

Answer:

one-half

Explanation:

cuz for a first order reaction is a half life independent of concentration and constant over time

4 0
3 years ago
Fill in the coefficients that will balance the following reaction:
Alex17521 [72]

Answer:

To balance a reaction, the amount of reactants must be equal to the amount of products, as stated by the Law of Conservation of Matter. It may help you to keep track of  the number of each element in a list as you try to balance. It's not able to be balanced.

3 0
2 years ago
Read 2 more answers
Q+ is an ion of element Q. What has the highest value in the ion?
Firdavs [7]

The highest value of the ion is the nucleon number. The correct option is a.

<h3>What is nucleon number?</h3>

The mass number of an element is so named because it represents the total number of protons and neutrons in the element.

The total number of protons and neutrons in an atomic nucleus is known as the mass number, also known as the atomic mass number or nucleon number. It is roughly equivalent to the atomic mass expressed in atomic mass units.

In the given ion Q+, the nucleon number has the highest value in the ion

Thus, the correct option is a.

For more details regarding nucleon number, visit:

brainly.com/question/14622763

#SPJ1

7 0
1 year ago
A horse gallops along a racecourse at a speed of 40 km/h. It takes the horse 3 minutes to run the length of the track.
Natali [406]

To convert minutes to hours we divide the minutes by 60. So if we divide 3 by 60 we get 0.05 hours.

<h3>How to convert minutes into hour?</h3>

We know that in hour, there are 60 minutes so if we go from minutes to hours then we have to divide the number by 60 and when we go from hours to minutes we multiply with the same 60 number.

So we can conclude that to convert minutes to hours we divide the minutes by 60. So if we divide 3 by 60 we get 0.05 hours.

Learn more about hour here: brainly.com/question/291457

#SPJ1

7 0
1 year ago
What physical property difference enabled you to Seperate salt from water?
elena55 [62]
<span>The two techniques for separating an insoluble solid from a liquid are filtration and centrifuging. Filtration relies on the fact that the solid particles are smaller than the filter paper pores which allow the tiny molecules of liquid to pass through. With solids which dissolve in a liquid solvent, evaporation is commonly used to recover the solid and distillation is used to recover the solvent.</span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • The density of a substance is 4.8 g/mL. What is the volume of the sample that is 19.2 g?
    8·1 answer
  • 0.03÷0.35 what is it rounding at least 3 digits
    15·1 answer
  • Consider the reaction H2(g) + Cl2(g) → 2HCl(g)ΔH = −184.6 kJ / mol If 2.00 moles of H2 react with 2.00 moles of Cl2 to form HCl,
    13·1 answer
  • Hydrogen sulfide and concentrated sulfuric acid react to form water and sulfur dioxide as shown in the following reaction:
    13·1 answer
  • How many liters of o2 do you have if you have 5.8 moles of o2
    13·1 answer
  • The end point indicates the completion of the titration by physical change (which is
    10·1 answer
  • Daniel is testing objects for his science experiment. He has a chart listing the mystery objects' densities, but no other inform
    7·2 answers
  • (03.05 LC)
    12·1 answer
  • The least polar bond is found in a molecule of hi hf hcl hbr
    7·1 answer
  • How could you “supersaturate” solutions, exceeding the amount of dissolved solute possible
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!