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
Lana71 [14]
2 years ago
9

Please help..

Chemistry
1 answer:
Hoochie [10]2 years ago
8 0

Answer:

1.

Explanation:

Let's start with the hydrogen. If we have 4 grams of hydrogen, it would be enough for 4 * 9 = 36 grams of water. Well, that can't be possible ...

4 votes

You might be interested in
Explain how the colors of the visible light spectrum are organized using the terms wavelength and frequency.
Eddi Din [679]

Answer:

Visible light spectrum is a part of electromagnetic waves.  The colors of the visible light spectrum are organised on the basis of their wavelength and frequency.

As the light or color having high frequency will have the shorter wavelength and vice versa, so  colors in visible light spectrum arranged from highest frequency to lowest frequency or from shortest wavelength to highest wavelength. For example: The highest frequency color is violet and lowest frequency of visible light is red.

3 0
3 years ago
Calculate the mass (in grams) of calcium carbonate present in a 50.00 mL sample of an aqueous calcium carbonate standard, assumi
horrorfan [7]
1 part per million is the same as 

<span>1 mcg/mL (mcg = 1 micro gram = 1 * 10^-6 grams). </span>
<span>125 ppm = 125 mcg/mL </span>

<span>125 mcg/ml * [1 gram / 1 * 10^6 mgrm] = 1.25 * 10^-4 grams </span>

<span>The density of hard water is 1.000 grams / mL </span>

<span>50 mL of water contains 1.25 * 10^-4 grams. </span>

<span>given mass = 1.25 * 10^-4 </span>
<span>Molar mass = 100.0 grams / mole </span>
<span>n = ????? </span>

<span>n = 1.25 * 10^-4/100 = 1.25 * 10^-6 moles. 

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

</span>
7 0
3 years ago
Dehydrohalogenation of tert-pentyl bromide at higher temperatures will produce 2-methyl-1-butene as the chief product when
salantis [7]

I'm going to suppose you want the adjusted chemical reaction, using the formulas of the compounds. You can see it in the image attached.

6 0
4 years ago
A sound wave is traveling at 6,420 m/s and has a frequency of 600 Hz.
kolbaska11 [484]

10.7 mExplanation:The wavelength of a wave can be found by using the formulawherec is the speed of the wavef is the frequencyFrom the questionc = 6420 m/sf = 600 HzWe haveWe have the final answer as10.7 mHope this helps you

3 0
3 years ago
What different physical property allows the distillation method to work?
shusha [124]

Distillation is a widely used method for separating mixtures based on differences in the conditions required to change the phase of components of the mixture. To separate a mixture of liquids, the liquid can be heated to force components, which have different boiling points , into the gas phase .

7 0
4 years ago
Other questions:
  • What part of the atom determines if it will combine or break apart from other substances?
    12·2 answers
  • A small child watches you as you stir a spoonful of sugar into a glass of clear lime-flavored drink. The child says she believes
    5·1 answer
  • What is the maximum number of electrons that can occupy a box in an orbital filling diagram at any energy level?
    13·1 answer
  • Does the shape, size, or temperature of matter affect its density?
    12·1 answer
  • How many grams of oxygen are required to burn 60 grams of ethane gas, C2H6? 2 C2H6 (g) + 7 O2(g) → 4 CO2 (g) + 6 H2O (g)
    14·1 answer
  • What type of reaction is 2AI+6HCI=2AICI3+3H2
    5·1 answer
  • What is the definition of erosion ​
    9·2 answers
  • What are the factors of diffusion?
    11·2 answers
  • Using the following thermochemical equation, calculate how much heat is associated with the decomposition of 4.00 moles of NH4Cl
    5·2 answers
  • Fractional distillation is used to separated
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!