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
EleoNora [17]
2 years ago
7

Please help! it’s due date is in a few minutes

Chemistry
1 answer:
Licemer1 [7]2 years ago
7 0

Answer:

40'0'

Explanation:

X is smaller than |-40|

You might be interested in
How does kinetic energy affect the stopping distance of a vehicle traveling at 30 mph compared to the same vehicle traveling at
Anastasy [175]
The larger the kinetic energy of the vehicle, the larger the amount of energy will be needed to stop the vehicle, meaning that faster vehicles have a larger stopping distance
5 0
3 years ago
Which one is a chemical reaction? Why?
Alex17521 [72]

Answer:

Copper turns green on exposure to air

Explanation:

Liquid water freezes to form ice: Physical change

Reason: Water can melt back when it becomes ice.

Copper turns green on exposure to air: Chemical change

Reason: The copper can not change back from the green state when it turns green.

3 0
3 years ago
Describe the experimental basis for believing that the nucleus occupies a very small fraction of the volume of the atom.
svetlana [45]

Explanation:

Rutherford conducted an experiment in which he took a thin gold particle film on which he passes alpha- particles. He noticed that:

  • Most of the alpha particles get through the film and can be detected by the detector.
  • Around small portion of the alpha particle deflected at small angles.
  • A very very few alpha particle (approximately 1 out of 1 million alpha particles) just retraced their path which means come back from the center.

He concluded that:

<u>Most of the space of the atom is empty and in the center of the atom , there is solid mass which is the cause of the alpha particles to come back. He gave the term nucleus to this solid mass.</u>

4 0
3 years ago
This drawing shows a human body system.
Alexxx [7]

Answer:its A ( the transport of nutrients,water,oxygen to body cells

Explanation:

I just did it :)

5 0
3 years ago
Which equation is used to help form the combined gas law? mc009-1. Jpg mc009-2. Jpg mc009-3. Jpg mc009-4. Jpg.
Luba_88 [7]

The combined gas law equation has been \dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}.

The combined gas law has been assigned to the ideal gas. It has been stating that ideal gas are having negligible inter-molecular attraction and collision resulting in the absence of pressure and volume from the particles.

In an ideal gas the equation has been given as:

PV=nRT

Where, <em>P </em>has been the pressure of the gas

<em>V </em>has been the volume of the gas

<em>n </em>has been the moles of the gas

<em>R </em>has been a constant

<em>T </em>has been the temperature of the gas

The combined gas law has been given as the change in the pressure, and volume for a gas. It has been given as:

\dfrac{P_1V_1}{T_1}=\dfrac{P_2V_2}{T_2}

For more information about combined gas law, refer to the link:

brainly.com/question/13154969

7 0
3 years ago
Other questions:
  • Monosodium glutamate (msg) in soup, iodine in table salt, and beet extract in strawberry ice cream are all examples of
    11·1 answer
  • How are cistrans isomers used for night vision?
    15·1 answer
  • How many phase rule variables must be specified to fix the thermodynamic state of each of the following systems? Show how you de
    15·1 answer
  • You replicate the CEC analysis of a secondary alcohol you performed in the lab using a reverse phase TLC plate producing the TLC
    5·1 answer
  • What is the average atomic mass of the following isotopic mixture - 42.10 g/mole- 93.50%; 48.30 g/mole 6.200%; 50.40 g/mole - 0.
    12·1 answer
  • Module 2 dba for chemistry questions? flvs
    6·1 answer
  • For the energy diagram of the chemical reaction depicted here, which of the following is the best conclusion?
    8·2 answers
  • What are the two main types of luster?
    15·2 answers
  • Each time the boy breathes, he exhales 0.5012 L of gas. How many moles of gas does he exhale?​
    11·1 answer
  • The fuel used to power the booster rockets on space shuttles is a mixture of aluminum metal and ammonium perchlorate. the follow
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!