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lord [1]
3 years ago
7

Express 6009m in scientific notation

Chemistry
2 answers:
ElenaW [278]3 years ago
8 0

Answer:

The number 6009 in scientific notation is 6.009*10³

Explanation:

Scientific notation is a quick way to represent a number using base ten powers. This notation is used to express very large or very small numbers very easily.

The numbers are written as a product a*10ⁿ where:

  • a is a real number greater than or equal to 1 and less than 10, to which a decimal point is added after the first digit if it is a number that is not an integer.
  • n is an integer, which receives the name of exponent or order of magnitude. Represents the number of times the comma moves. It is always an integer, positive if it moves to the left, negative if it moves to the right.

To write the number 6009 in scientific notation, the following steps are performed:

  • The decimal point moves to the left as many spaces until it reaches the right of the first digit.  In this case: 6009=6.009
  • This number is then written, which will be the coefficient a in the expression of the previous product.
  • The base 10 is written with the exponent equal to the amount of spaces that the comma moves. This is a positive number because the comma moves to the left. So in this case: the exponent will be 3

Then <u><em>the number 6009 in scientific notation is 6.009*10³</em></u>

Andre45 [30]3 years ago
4 0
6.009 x 10^3. You have to put 6009 into a decimal that is less than 10. Count backwards from 9 until you get to a single digit. You would move the decimal back three places making it 10^3
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Urgent 25 points!!
LekaFEV [45]

Answer:

A. Yes, Amanda find the number of moles of NaCl correctly.

B. 0.73 M.

Explanation:

<em>A. Did Amanda find the number of moles of NaCl correctly? If not, explain. </em>

  • Yes, Amanda find the number of moles of NaCl correctly.
  • The relation to find the no. of moles of NaCl is:

<em>No. of moles (n) of NaCl = mass/molar mass.</em>

mass of NaCl = 32.0 g, molar mass of NaCl = 58.45 g/mol.

∴ No. of moles (n) of NaCl = mass/molar mass = (32.0 g)/(58.45 g/mol) = (32.0 g NaCl)*(1 mol of NaCl)/(58.45 g NaCl) = 0.547 mol ≅ 0.55 mol.

<em>B. What does Amanda need to do next to calculate the molarity of the NaCl solution? Show your work for full credit.</em>

<em></em>

  • Molarity is the no. of moles of solute dissolved in a 1.0 liter of a solution.

∴ M = (no. of moles of NaCl)/(volume of solution (L)) = (0.55 mol)/(0.75 L) = 0.73 M.

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4 years ago
Which type of eclipse would you expect to see if the moon passes directly between earth and the sun?
Deffense [45]

C. A total lunar eclipse.

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The atmosphere is held together by
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Our atmosphere is a mixture of gases that surround Earth. It is kept in place by the pull of Earth's gravity. If Earth was a much smaller planet, like Mercury or Pluto, its gravity would be to weak to hold a large atmosphere.

Explanation:

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Where in an equation for photosynthesis does oxygen belong?
LUCKY_DIMON [66]

Answer:

on the right side, because it is a product

Explanation:

photosynthesis is the chemical reaction with the help of which plants produce chemical energy with the help of light energy.

_______________________________________________

The general standard for writing chemical reaction is that

  • The chemical which are input to the process of chemical reaction are written on left hand side . They are known as reactant.
  • The output of chemical reaction are written on right side. They are termed as product.
  • Transition of reactant to product is shown by arrow.

Chemical reaction for photosynthesis is given by below equation

6CO2 + 12H2O  + light ----------------> C6H12O6 + 6O2 + 6H2O  

We can see that 6 molecules of light combines with 12 molecules of water to give one molecule of glucose and 6 molecules of both water and oxygen.

As, oxygen is the output of photosynthesis process, it is written on the right-hand side of equation and is product of this reaction.

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Thus, of the options given below for

In an equation for photosynthesis does oxygen belong

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7 0
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Bismuth oxide reacts with carbon to form bismuth metal:
lesya692 [45]

Answer:

(a) 1.92 moles of Bi produced.

(b) 80.6 grams

Explanation:

             Balanced equation: Bi2O3(s) + 3C(s) → 2Bi(s) + 3CO(g)

1st find moles of Bi2O3:

Bi2O3 has Mr of 466 and mass of 447 g

\hookrightarrow moles = \frac{mass}{Mr}

\hookrightarrow moles = \frac{447}{466}

\hookrightarrow moles = 0.959227

2nd find moles of Bi:

Bi2O3 : 2Bi

→       1 : 2 ------ this is molar ratio.

→ 0.959227 : (0.959227)*2

→ 0.959227  : 1.91845

→ 0.959227  : 1.92

Therefore 1.92 moles of Bi was produced.

3rd Find moles of 3CO:

Bi2O3 : 3CO

      1 : 3

0.959227 : (0.959227 )*3

0.959227 : 2.87768

3CO has 2.87768 moles and we know the Mr is 28.

\hookrightarrow mass = moles * Mr

\hookrightarrow mass = 2.87768 * 28

\hookrightarrow mass =80.575 g

Therefore 80.575 grams of CO was produced.

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