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
iVinArrow [24]
4 years ago
6

0.000000655 mL in scientific notation

Chemistry
1 answer:
alina1380 [7]4 years ago
3 0

Answer:

<u>The answer is 6.55 * 10⁻⁷</u>

Explanation:

Let's write 0.000000655 mL in scientific notation:

The first step is you have to move the decimal place until you have a number between 1 and 10. If you keep moving the decimal point to the right in 0.000000655 you will get 6.55.

Now, the second step is you count how many places you moved the decimal point. You moved it 7 places to the right to change 0.000000655 to 6.55.

Finally, You need to show that you moved the decimal point 7 places to the right by noting that the number should be multiplied by 10⁻⁷ because a power of ten with a negative exponent, such as 10⁻⁷, means the decimal was moved to the right.

<u>The answer is 6.55 * 10⁻⁷</u>

You might be interested in
How was Ohm's Law proven wrong in 1909?
maksim [4K]

Answer:

Ohm's law states that Voltage is directly proportional to the Current passing through the conductor.  It increases in case of conductors and decreases in case of semi-conductors. Hence Resistivity turned out to be a variable making the Resistance a variable too and hence proving Ohm's Law wrong.

Explanation:

7 0
4 years ago
A 0.1 M NaCl solution and a 0.2 M glucose solution are separated by a membrane that is impermeable to these solutes but is perme
katovenus [111]

nothing will happen

if you calculate the water potiential for both solutions

you get 2(0.1)(R)(T) and 1(0.2)(R)(T)

which is the same thing, so its isotonic.

7 0
3 years ago
Use this chemical equation to answer the question.
Maurinko [17]

Answer:

D. 4, 3, 2.

Explanation:

Oxygen exists as the molecule O2. So it is:

4Fe +  302  --->  2Fe2O3

7 0
3 years ago
Read 2 more answers
Multiple covalent bonds may occur in atoms that contain carbon,nitrogen, or
Arisa [49]

Answer: Multiple covalent bonds may occur in atoms that contain carbon,nitrogen, or  <u><em>oxygen</em></u>.

8 0
3 years ago
What mass of CDP (403 g mol−1) is in 10 mL of the buffered solution at the beginning of Experiment 1? 6.4 × 10−4 g 6.4 × 10−3 g
eduard

Compete Question:

What mass of CDP (403 g mol−1) is in 10 mL of the buffered solution at the beginning of Experiment 1?

               Passage: "16 mmol of CDP in 1 L of buffer"

                                       

Answer:

6.4 × 10-2 g  

Explanation:

  Mass = Mole × Molar Mass

   we are given from the question that 16 mmol of CDP is in 1 L of buffer

    this mean that we have 16 × 10^-3 moles of CDP in 1 liter of buffer.

so the mass of CDP in one liter of buffer will be calculate as,

         mass of CDP = 16 × 10^-3 × 403g mol−1

                               = 64 × 10^-1

                               = 6.4 g/L

But because the question

asks us about the mass of CDP in 10 mL of solution, we will go further to calculate it like this:

6.4 g/L × 10 mL

6.4 g/L × 0.01 L  = 6.4 × 10^-2

8 0
4 years ago
Other questions:
  • A collection of coins contains 15 pennies, 12 dimes, and 7 quarters. What is the percentage of pennies in the collection? Expres
    12·1 answer
  • Which of the following most likely explains why the chemical symbol for calcium is Ca?
    5·1 answer
  • The ability of a substance to dissolve in another substance?
    8·2 answers
  • Dimensional analysis definition chemistry
    8·2 answers
  • 10.0g of calcium carbonate was heated. The mass of calcium oxide left was 5.6g. Calculate the mass of carbon dioxide produced in
    7·1 answer
  • What are the units for momentum? <br> A. kg/s <br>B. kg.m/s <br>C. kg•m/s2 <br> D. kg•m/​
    9·2 answers
  • Step 2 is _____________ because the energy _________ when carbon-oxygen bonds form is greater than the energy _________ when car
    7·1 answer
  • Mass is measured in= a. Liters b. centimeters c. newtons d. kilograms
    14·1 answer
  • To study a marine organism, a biologist prepares a 1.00-kg sample to simulate the ion concentrations in seawater. She mixes 26.5
    9·1 answer
  • Someone please help me figure out the significant figure
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!