CHEMISTRY HIGH SCHOOL

Answer the following question using the reaction: AB ---> A+BWhich statement describes the above reaction.

Answers

Answer 1
Answer:

Answer:

So whats the question?

Explanation:
Answer 2
Answer:

Answer:

Catabolic reaction.

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Which planet do scientists believe prevented the asteroids in the asteroids belt from forming a planet? A. Earth
B. Jupiter
C. Mars
D. Neptune

Answers

I think it is Jupiter. Let me know if I am right, I hope I am.

Answer: Jupiter is believed to have prevented the asteroids in the asteroid belt from forming a planet.

A sample of an unknown substance has a mass of 0.158 kg. If 2,510.0 J of heat is required to heat the substance from 32.0°C to 61.0°C, what is the specific heat of the substance?

Answers

The specific of the unknown substance that underwent a change in temperature is 0.567 J/g-C. This was solved using the equation for heat transfer which is:

U = mCp(Tf-Ti)

where:
U = heat absorbed or released in joules
m = mass in grams
Cp = specific heat in J/g-C
Tf = final temperature
Ti = initial temperature

Substituting values and converting 0.158 kg to grams gives the value 0.567 J/g-C. You can use a table of specific heat values to determine what the substance is as well.

Answer: 0.469 J / g°C

Explanation:

1) Data:

m = 0.158 kg

Q = 2,150.0 J

ΔT = 61.0°C - 32.0°C

Cs = ?

2) Formula:

Q = m×Cs×ΔT

3) Solution

i) Solve for Cs: Cs = Q / [m×ΔT]

ii) Plug in the data and compute

Cs = 2,150.0 J / [158 g × (61.0°C - 32.0°C) ] = 0.469 J / g°C

a car with a mass of 1.2 × 103 kilograms is moving at a speed of 18 meters/second. It is hit by a truck from behind and its speed after the collision increases to 20 meters/second. What is the value of impulse?

Answers

2.4 × 10^(3) kilogram meters/ second 

Answer: Value of impulse is 2.4* 10^3\text{kg m/s}

Explanation: lmpulse is defined as the amount of force acting over a short time interval 't' which is equal to the change in momentum of the body having mass 'm'.

Mathematically,

J=F* t=m\Delta v

And,

\Delta v=v_2-v_1

Given:

m=1.2* 10^3kg\nv_1=18m/s\nv_2=20m/s

Putting values in above equation, we get:

J=m(v_2-v_1)=1.2* 10^3(20-18)\text{ kg m/s}

J=2.4* 10^3\text{kg m/s}

All the examples stated belos is an example of electric forces except _________. A)a neutron pushing on another neutron B)an electron pushing on a proton B)an electron pushing on another electron

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Among all the choices letter A is not an example of electric forces which is a neutron pushing on another neutron. Neutron do not have charge and a mass slightly larger than the proton. I hope my answer helps you. 
All of the following are examples of electric force except A. A Neuton pushing on another Neutron. Neutrons are subatomic particles that possess no electrical charge.

What element is found in fish

Answers

The elements found in fish are Mercury, Cadmium, Lead, Tin and Arsenic
Your answer is Mercury, Cadmium, Lead, Tin and Arsenic
Well toxic elements found in fish are Mercury, cadmium, lead, tin, and arsenic.

What does 1 amu equal to

Answers

1 atomic mass unit =1.66053904 × 10-27 kilograms
An atomic mass unit is equal to one-twelfth the mass of one Carbon-12 atom.

*Hope that helps XD*
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