3 years ago

2x +5x +x^2 -x=Plz help

Chemistry

1 answer:

wel3 years ago

8 0

Answer:

Explanation:

2x + 5x + x^2 -x

7x - x + x^2

= 6x + x^2

You might be interested in

Which of the following statements best explains why Native Americans were overtaken so easily by European settlers?

MaRussiya [10]

Answer:

I don't see any following statements

Explanation:

could you give me some and I'll be happy to help : )

5 0

2 years ago

Read 2 more answers

The the heat system in a home most likely uses ________________ to transfer heat.

tino4ka555 [31]

Radiation is the answer

5 0

2 years ago

A sample of argon gas has a volume of 795 mL at a pres-sure of 1.20 atm and a temperature of 116 ∘C. What is the final volume of

jek_recluse [69]

<u>Answer:</u> The volume when the pressure and temperature has changed is $1.6\times 10^2mL$

<u>Explanation:</u>

To calculate the volume when temperature and pressure has changed, we use the equation given by combined gas law.

The equation follows:

$\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

where,

$P_1,V_1\text{ and }T_1$ are the initial pressure, volume and temperature of the gas

$P_2,V_2\text{ and }T_2$ are the final pressure, volume and temperature of the gas

Let us assume:

$P_1=1.20atm\\V_1=795mL\\T_1=116^oC=[116+273]K=389K\\P_2=0.55atm\\V_2=?mL\\T_2=75^oC=[75+273]K=348K$

Putting values in above equation, we get:

$\frac{1.20atm\times 795mL}{389K}=\frac{0.55atm\times V_2}{348K}\\\\V_2=\frac{1.20\times 795\times 348}{0.55\times 389}=1.6\times 10^3mL$

Hence, the volume when the pressure and temperature has changed is $1.6\times 10^2mL$

5 0

2 years ago

Which subatomic particle helps identify an elements identify

Sindrei [870]

Answer:

Protons

Explanation:

Protons are the subatomic particle that determines the identity of an element.

8 0

3 years ago

How to calculate IMA

Cloud [144]

Using IMA is used in Engineering, but there is a simple rhyme I use called IMA Deer. IMA=De/Dr

7 0

2 years ago

2x +5x +x^2 -x=Plz help​

2x +5x +x^2 -x=Plz help