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
LUCKY_DIMON [66]
3 years ago
11

Which of these is a chemical property of a substance?

Physics
1 answer:
My name is Ann [436]3 years ago
5 0
Reactivity is a chemical property of substance
You might be interested in
In 1911, Ernest Rutherford and his assistants Geiger and Marsden conducted an experiment in which they scattered alpha particles
alexandr402 [8]

Answer:

Explanation:

We shall apply conservation of mechanical energy

kinetic energy of alpha particle is converted into electric potential energy.

1/2 mv² = k q₁q₂/d , d is closest distance

d = 2kq₁q₂ / mv²

= 2 x 9 x 10⁹ x 79e x 2e / 4mv²

= 1422 x2x (1.6 x 10⁻¹⁹)² x 10⁹ /4x 1.67 x 10⁻²⁷ x (1.5 x 10⁷)²

= 3640.32 x 10⁻²⁹ /2x 3.7575 x 10⁻¹³

= 484.4 x 10⁻¹⁶

=48.4  x 10⁻¹⁵ m

8 0
3 years ago
Describe two sources of earth's energy that are not produced
Anvisha [2.4K]
Here is the answer. Two sources of Earth's energy that are not produced would be Cosmic rays and Tidal Energy. Cosmic rays <span>are high-energy protons and atomic nuclei that come from outside the solar system. Whereas, tidal energy is the energy produced by both the moon (2/3) and the sun (1/3). Hope this answers your question.</span>
6 0
2 years ago
I NEED HELP WITH THE LAST QUESTION I’L MARK U AS BRANLIEST
velikii [3]

Answer:

gap junctions,tight junctions,and desmosomes

6 0
3 years ago
A smoke detector is an electronic fire-protection device that automatically senses the presence of smoke as a key indicator of f
Colt1911 [192]

Answer:

Photoelectric-type alarms aim a light source into a sensing chamber at an angle away from the sensor. Smoke enters the chamber, reflecting light onto the light sensor; triggering the alarm.

Explanation:

nfpa.org is the website with theanswer

7 0
2 years ago
How is a warm front differnt from a cold front
NISA [10]
Bruh... but a warm front is different because it brings warm ness and sun, a cold front brings clouds , cloudy weather, and cold weather
8 0
3 years ago
Other questions:
  • A defibrillator is a device used to shock the heart back to normal beat patterns. To do this, it discharges a 15 μF capacitor th
    8·1 answer
  • Keaton is asked to solve the following physics problem:
    6·1 answer
  • Using complete sentences, explain why graphs are so important to scientists.
    15·1 answer
  • A small car collides with a large truck is the magnitude of the force experience by the car greater than less than or equal to t
    5·2 answers
  • Soap bubble interference Light of 690-nm wavelength interferes constructively when reflected from a soap bubble having refractiv
    14·1 answer
  • What is evaporation? Condensation? Drag the terms on the left to the appropriate blanks on the right to complete the sentences.
    12·1 answer
  • If a subway train is moving to the left (has a negative velocity) and then comes to a stop, what is the direction of its acceler
    14·1 answer
  • 2) Calculate the gravitational potential energy that a parachutist has just as he
    5·1 answer
  • If a car increases its velocity from +6 m/s to +30 m/s in 6 seconds, its acceleration in m/s2 is__________.
    7·1 answer
  • A scientist stated that rock layer C is the
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!