3 years ago

PLEASEE HELP ASAP WILL MARK BRAINLIEST

Chemistry

2 answers:

shepuryov [24]3 years ago

7 0

I believe it is A, A, C, D

timofeeve [1]3 years ago

5 0

Answer:A,A,b,b

Explanation:i think i am learning this right now too!

You might be interested in

Which sweet tea would you expect to taste the sweetest? *

Allisa [31]

Answer:

8M IM NOT SURE SO. IF YOU CAN GET A CLEARED PICTURE OF IT WOULD REALLY HELP

4 0

3 years ago

Select the correct answer.

lorasvet [3.4K]

Answer:

D. the energy release increases the molecular motion but decreases the kinetic

energy of the substance

5 0

3 years ago

Use the de Broglie's Wave Equation to find the wavelength of an electron moving at 7.3 × 106 m/s. Please show your work. Note: h

ad-work [718]

Answer:

$\lambda=9.96\times 10^{-11}\ m$

Explanation:

The expression for the deBroglie wavelength is:

$\lambda=\frac {h}{m\times v}$

Where,

$\lambda$ is the deBroglie wavelength

h is Planck's constant having value $6.62607\times 10^{-34}\ Js$

m is the mass of electron having value $9.11\times 10^{-31}\ kg$

v is the speed of electron.

Given that v = $7.3\times 10^6\ m/s$

Applying in the equation as:

$\lambda=\frac {h}{m\times v}$

$\lambda=\frac{6.62607\times 10^{-34}}{9.11\times 10^{-31}\times 7.3\times 10^6}\ m$

$\lambda=\frac{10^{-34}\times \:6.626}{10^{-25}\times \:66.503}\ m$

$\lambda=\frac{6.626}{10^9\times \:66.503}\ m$

$\lambda=9.96\times 10^{-11}\ m$

6 0

3 years ago

The dog will eat more food to store fat and grow more hair.

makvit [3.9K]

hibernation exclamation mark

5 0

3 years ago

In an experiment you are asked to react hydrochloric acid with sodium hydroxide. When measuring the volume of the reactants, whi

Bingel [31]

What are the options? based on the volume it can differ but in general pipettes and graduated cylinder are the best. <span />

7 0

3 years ago