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
Mila [183]
3 years ago
15

Help science!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Chemistry
1 answer:
goldfiish [28.3K]3 years ago
7 0
All plants and animals need nitrogen<span> to make amino acids, proteins and DNA, but the </span>nitrogen<span> in the atmosphere is not in a form that they can use.</span>
You might be interested in
Name two factors that influence the viscosity of a lava flow
mr_godi [17]
Three factors that affect magma viscosity are temperature, composition, and presence of dissolved gases. 
6 0
2 years ago
How does a change in frequency or amplitude change the sound we hear
suter [353]
<span>Pitch is sometimes defined as the fundamental frequency of a sound wave (i.e. generally, the lowest frequency in a given sound wave). For most practical purposes, this is fine, and pitch and frequency can be thought of as equivalent. On the other hand, for most practical purposes, amplitude can be thought of as volume.However, technically, pitch (and volume) are human perceptions. Thus, our perception of pitch and volume are not solely based on frequency and amplitude respectively, but are based on a combination of both (and even other factors). Frequency overwhelming dictates perceived pitch, but amplitude also does have some small, small effect on our pitch perception, especially when it is very large. For example, a very loud sound can have a different <span>perceived </span>pitch than you would predict from its frequency alone.That all being said, usually these effects are negligible, and pitch can be thought of as equivalent to fundamental frequency.
</span>
4 0
2 years ago
the chloride of a metal M contains 47.25% of metal 1.0 gram of metal would be displaced from a compound by 0.88 gram of another
GenaCL600 [577]

Answer:

The equivalent weight of M is approximately 31.8 g

The equivalent weight of N is approximately 27.98 g

Explanation:

The given parameters are;

The percentage of the the metal M in in the chloride = 47.25%

Where by the chemical formula for the metal chloride is MClₓ, we have;

47.25% of the mass of MClₓ = Mass of M = W

Therefore, we have;

\dfrac{0.4725}{W} = \dfrac{1}{W + 35.5 \cdot x}

0.4725 × (W +  35.5·x) = W

0.4725·W + 0.4725×35.5×x = W

W - 0.4725·W  = 16.77·x

0.5275·W = 16.77·x

W/x = 16.77/0.5275 = 31.799 = The equivalent weight of M

The equivalent weight of M = 31.799 ≈ 31.8 g

Given that 1 gram of M is displaced by 0.88 gram of N, then the equivalent weight of N that will displace 31.799 = 0.88 × 31.799 ≈ 27.98 g

The equivalent weight of N = 27.98 g.

7 0
2 years ago
A change in which property of light will have no effect on whether or not the photoelectric effect occurs??? Frequently energy i
slavikrds [6]
Intensity has no affect on whether or not the photoelectric effect occurs.  The determining property is frequency and since frequency and wavelength are inversely proportional, wavelength matters as well.  If a frequency of light can't cause the photoelectric effect to happen, no matter what the intensity is, the light can't make it happen.

I hope this helps.  Let me know in the comments if anything is unclear.
5 0
3 years ago
Read 2 more answers
Mass , volume, and density are all properties of what
Vladimir [108]

Answer: Physical properties

Explanation: Can be measured without changing a substance's chemical identity.

4 0
3 years ago
Other questions:
  • If 3 g of element C combine with 8 g of element D to
    7·1 answer
  • What is the difference between a amalgam and alloy.
    15·1 answer
  • Which one of these is an element carbon carbon dioxide air water
    15·1 answer
  • Why use fire in the industrial revolution? <br><br><br><br> HELP PLEASE❤️❤️❤️
    6·1 answer
  • The following properties are either physical or chemical. Which one is different from the rest based on those two categories?
    6·2 answers
  • Identify two acids and two bases that you use or
    13·2 answers
  • What is Waves? Please help will give brainliest
    14·1 answer
  • Which of the following does not represent an aspect of an environmentally<br> sustainable society?
    7·2 answers
  • 3. What is the density of a 100 grams (g) box that displaces 20 mL of water?
    7·1 answer
  • A book is pushed and released and it slides across a table for a short distance. The book quickly comes to a stop. The book orig
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!