2 years ago

PLEASEEEE HELP MEE!

Chemistry

1 answer:

Ugo [173]2 years ago

7 0

Answer:

2nd option

Explanation:

You might be interested in

Which element was first discovered in space before it was discovered on Earth?

wlad13 [49]

Answer:

carbon

Explanation:

7 0

2 years ago

Read 2 more answers

Question 11 (5 points)

LenKa [72]

Answer:

False

Explanation:

On the left side of the equation (Li + O2), there is 1 Li atom and 2 O atoms.

but on thw right side of the equation (Li2O,) there is 2 Li atoms and 1 O atom

8 0

2 years ago

How can room things in a house save energy? List at least 5 ways in which you can save heat energy. Explain how each one can sav

pychu [463]

Answer:

brainly

Explanation:

Adjust your day-to-day behaviors.

Replace your light bulbs.

Use smart power strips.

Install a programmable or smart thermostat.

Purchase energy efficient appliances.

3 0

2 years ago

I’ll give brainliest!! I am a flat surface with one higher than the other. I make moving loads

Anit [1.1K]

Answer:a inclined plane

Explanation: like a ramp

6 0

2 years ago

Read 2 more answers

Consider an electron with charge âˆ’eâˆ’e and mass mmm orbiting in a circle around a hydrogen nucleus (a single proton) with cha

PtichkaEL [24]

Answer:

Explanation:

The net force on electron is electrostatic force between electron and proton in the nucleus .

Fc = $\frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}$

This provides the centripetal force for the circular path of electron around the nucleus .

Centripetal force required = $\frac{m\times v^2}{r}$

$\frac{m\times v^2}{r}=\frac{1}{4\pi\epsilon} \times \frac{e\times e}{r^2}$

$v^2=\frac{e^2}{4\pi \epsilon m r}$

$v=(\frac{e^2}{4\pi \epsilon m r})^{\frac{1}{2} }$

5 0

2 years ago