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
statuscvo [17]
3 years ago
7

When a physical or chemical change occurs, the law of conservation of mass always applies. What happens to the atoms during a ch

emical change, according to this law?
Group of answer choices

Atoms disappear

Atoms are created.

Atoms are destroyed.

Atoms are rearranged.
Physics
2 answers:
matrenka [14]3 years ago
8 0
Atoms are rearranged is the answer.
lisabon 2012 [21]3 years ago
5 0
The answer would be the atoms are rearranged
You might be interested in
Give three examples from your life of magnetic force.
Margaret [11]
Headphones, refrigerator magnets, and compasses

Hope that was helpful.
4 0
3 years ago
Read 2 more answers
A bicycle wheel of radius 0.70 m is rolling without slipping on a horizontal surface with an angular speed of 2.0 rev/s when the
aleksandrvk [35]

Answer:

θ= 5 radian

Explanation:

Given data:

Radius r = 0.70 m

Initial angular speed ω_i = 2rev/s

Time t = 5 s

Final angular speed ω_f =0

so we have angular displacement

\theta= \frac{\omega_f-\omega_i}{2}\times t

putting values

\theta= \frac{0-2}{2}\times5 = 5 rad

8 0
3 years ago
Kohlberg believed that_____________.A. moral development progressed through distinct, qualitatively different stages. B. moral d
Whitepunk [10]

Answer:

A. moral development progressed through distinct, qualitatively different stages.

Explanation:

Kolhberg’s theory of moral development states that we progress through three levels of moral thinking that build on our cognitive development.

7 0
3 years ago
You are the science officer on a visit to a distant solar system. Prior to landing on a planet you measure its diameter to be 1.
trapecia [35]

Answer

given,

diameter of planet = 1.8 x 10⁷ m

radius of planet = 0.9 x 10⁷ m

time period = 22.3 hours

the planet orbits 2.2 x 10¹¹ m   period of 402 earth days.

acceleration= 12.2 m/s²

we know

g = \dfrac{GM_{p}}{r^2}

M_{p} = \dfrac{gr^2}{G}

M_{p} = \dfrac{12.2 \times (0.9 \times 10^7)^2}{6.67 \times 10^{-11}}

M_p = 1.48 x 10²⁵  Kg

b) Formula to calculate the mass of star

M_{s} = \dfrac{4\pi^2}{GT_s^2}(R^3)

M_{s} = \dfrac{4\pi^2}{6.67 \times 10^{-11} \times (402 \times 86400)^2}((2.2 \times 10^{11})^3)

M_s = 5.22 x 10³³ Kg

3 0
3 years ago
If the period wave is 6 seconds what is its frequency
Lunna [17]

Answer:

.17Hz

Explanation:

The formula for frequency is f= 1/T , where T is the period.

f = 1/6 and 1/6 ≈ .17

3 0
3 years ago
Other questions:
  • Any push or pull on an object is Question 5 options: Acceleration Velocity Force Inertia
    5·2 answers
  • A planet is 10 light years away from Earth. What speed would you need to go for a trip to the planet and back to take only 5 yea
    12·1 answer
  • A automotive test driver travels due north in a prototype hybrid vehicle at 30 mi/h
    10·1 answer
  • This is the equation for the formation of magnesium chloride. Mg(s) + 2HCl(l) → MgCl2(aq) + H2(g) Which are the reactants and th
    13·1 answer
  • As time goes on, the ENTROPY in a closed system should increase. This is because of which Law?
    14·1 answer
  • All moving objects have momentum. __ momentum refers to the momentum of objects moving in a straight line and __ momentum refers
    9·1 answer
  • Even in the most advanced circuits, we cannot oscillate electrons back and forth at that rate through wires. But we can oscillat
    9·1 answer
  • Which wave must have a medium to travel?
    7·2 answers
  • this is an area where two tectonic plates move towards each other with one going under the other plate?
    11·1 answer
  • What is the significance of Isaac's name? What is the significance of Isaac's name?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!