3 years ago

PLZ HELP PLZ PLZ ILL MARK AS BRAINLIESTT!!!

Chemistry

2 answers:

erastova [34]3 years ago

4 0

Answer:

HELP ASAP!! Evaluate the extent to which the United States government and people have reconciled social, economic, and political disparities with regards to the nation’s founding principles.

marin [14]3 years ago

3 0

A. V = 11 x 7 x 10
= 770 cm3
b. D = 825g/ 770cm3
= 1.07 gcm-3

Hope this helps!

You might be interested in

Consider the decomposition of hydrogen peroxide reaction. If the rate of decomposition of hydrogen peroxide at a particular temp

Natasha2012 [34]

Answer:

0.049 mol/L.s

Explanation:

The decomposition of hydrogen peroxide is:

$H_2O_2 \to H_2O + \dfrac{1}{2}O_2$

$Rate = -\dfrac{\Delta [H_2O_2]}{\Delta t}= \dfrac{\Delta [H_2O_2]}{\Delta t}= \dfrac{ 2 \Delta [H_2O_2]}{\Delta t}$

The rate of decomposition reaction = the rate of formation of $H_2O$ = 0.098 mol/L.s

∴

Rate of formation of $O_2$ $= \dfrac{ rate \ of \ reaction }{2}$

$= \dfrac{ 0.098 }{2}$

= 0.049 mol/L.s

8 0

3 years ago

Please help me with this thank you I’ll give extra credit! Thank you againnnn !!

Anon25 [30]

Answer: i have not 1 idea

Explanation:

4 0

3 years ago

Calculate the following quantity: volume of 1.403 M copper(II) nitrate that must be diluted with water to prepare 575.2 mL of a

Juliette [100K]

Answer:

328 ml

Explanation:

We have given final volume =575.2 ml=0.575 L

Final concentration = 0.8012 M

We know that moles of copper(II) nitrate = final volume ×final concentration =0.8012×.0575=0.4606 moles

We have to find initial volume

So initial volume $=\frac{moles\ of \ copper(II)\ nitrate}{initial\ concentration}=\frac{0.4606}{1.403}=0.328L=328ml$

6 0

4 years ago

Will give brainlist need answers asap

lord [1]

Answer:

2nd and 4th ones

Explanation:

More sugar dissolves in water than salt

more aspirin dissolves in water than CO2 ...but less aspirin than table salt (NaCl)

5 0

2 years ago

A compound is a substance composed of two or more elements that are

Anastaziya [24]

Chemically bonded together

3 0

4 years ago