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
ExtremeBDS [4]
2 years ago
5

How many significant figures are in 0.00102?

Chemistry
2 answers:
Lunna [17]2 years ago
8 0

Answer:

3 digits

Explanation:

The first nonzero digit is counted as a significant digit and the zero inbetween 2 nonzero digits count too.

Therefore, the significant digits are 0.00102.

zaharov [31]2 years ago
7 0

Answer:

3

Explanation:

102 are significant figures

You might be interested in
What is the symbol for halogen on the periodic table? can u please help me????
Phantasy [73]

Answer:

F

Explanation:

4 0
3 years ago
Read 2 more answers
How many moles of iron(III) hydroxide precipitate will form when 2.7 moles of aqueous sodium hydroxide reacts completely with ex
aalyn [17]

Answer:

0.9 mole of Fe(OH)3.

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

Fe(NO3)3 + 3NaOH —> Fe(OH)3 + 3NaNO3

Now, we can determine the moles of iron (III) hydroxide formed from the reaction as follow:

From the balanced equation above,

3 moles of NaOH reacted to produce 1 mole of Fe(OH)3.

Therefore, 2.7 moles of NaOH will react to produce = 2.7/3 = 0.9 mole of Fe(OH)3.

Therefore, 0.9 mole of Fe(OH)3 is produced from the reaction.

7 0
3 years ago
Find the density if the mass is 20 grams and the volume is 10 mL?
tatiyna

Answer:

D= 2g/mL

Explanation:

20g/10ml= 2g/mL

5 0
2 years ago
We know the sun is primarily made from hydrogen and helium on the basis of its:
Aleksandr [31]

We know the sun is primarily made from hydrogen and helium on the basis of its spectrum.

<h3>What is Sun's spectrum?</h3>

Sun's spectrum refers to the light of the Sun whose wavelength spectra can be used to identify atomic composition.

Thus spectrum (Sun's spectrum) initiates with the red light (700 nm) and ends with the blue (380 nm).

In conclusion, we know the sun is primarily made from hydrogen and helium on the basis of its spectrum.

Learn more about the Sun's spectrum here:

brainly.com/question/2021598

#SPJ12

4 0
2 years ago
The closest star to our Sun is Proxima
Aneli [31]

Answer: 40,132,418,653,700 km

Explanation:

1 light year=9460730470000 kilometers

4.242*9460730470000 km=40132418653700 km

8 0
1 year ago
Other questions:
  • Based on the information in the table, which elements are most likely in the same periods of the periodic table?
    7·2 answers
  • Which state of matter has the highest density?
    8·2 answers
  • What is the difference between ester and ether
    12·1 answer
  • What are 3 ways living creatures use carbohydrates
    13·1 answer
  • What mass of NH3 (in grams) must be used to produce 5.65 tons of HNO3 by the Ostwald process, assuming an 80.0 percent yield in
    12·1 answer
  • How many moles of helium are needed to fill a balloon to a volume of 6.3 L at 28 °C and 320
    13·2 answers
  • Draw the major organic product(s) of the reaction of p-bromoaniline with HNO2, HCl.
    5·1 answer
  • A mole of oxygen and a mole of hydrogen (at STP) have all of the following in common EXCEPT
    9·1 answer
  • A student reads that sodium atoms (Na) react with chlorine (Cl2) molecules to form the compound sodium chloride (NaCl). Which mo
    7·2 answers
  • A Carnot cycle operates between the temperatures limits of 400 K and 1600 K, and produces 3600 kW of net power. The rate of entr
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!