3 years ago

Answer this please thank you

Chemistry

1 answer:

Zigmanuir [339]3 years ago

7 0

Answer:

Explanation:

D is the correct answer

You might be interested in

An equilibrium mixture of CO, O2 and CO2 at a certain temperature contains 0.0010 M CO2 and 0.0100 M O2. At this temperature, Kc

Naya [18.7K]

The correct answer to this question is letter "B) 8.4 × 10-4 M."

2CO+O2<->2CO2

-x -x +x

It started as 2CO2 so +x, then it decomposed into 2CO and O2, so-x

2CO-oxidized, O2-Oxidized, 2CO2-reduced

the easiest way is to look at the equation, so if we have some reactant and no product

A<->2C+D

-x +2x +x
so if we had product concentration, and no reactant concentration 3A<-> C+D +3x -x-x <span>
</span>

8 0

4 years ago

Read 2 more answers

What coefficient well O2 have after balancing this equation

Vsevolod [243]

Coefficient of O2 will be 6

3 0

3 years ago

Read 2 more answers

I NEED HELP!!

shusha [124]

Answer:

1 B

A,C,A,B

C,A,C,A

C,A,A,B

Explanation:

Easy ive done this brings back memories

7 0

3 years ago

Estradiol is a female sexual hormone that causes maturation and maintenance of the female reproductive system. Elemental analysi

Ipatiy [6.2K]

Answer:

The molecular formula of estradiol is: $C_{18}H_{24}O_2$ .

Explanation:

Molar mass of of estradiol = M= 272.37 g/mol

Let the molecular formula of estradiol be $C_xH_yO_z$

Percentage of an element in a compound:

$\frac{\text{Number of atoms of element}\times \text{Atomic mass of element}}{\text{molecular mass of element}}\times 100$

Percentage of carbon in estradiol :

$\frac{x\times 12 g/mol}{272.37 g/mol}\times 100=79.37\%$

x = 18.0

Percentage of hydrogen in estradiol :

$\frac{y\times 1g/mol}{272.37 g/mol}\times 100=8.88\%$

y = 24.2 ≈ 24

Percentage of oxygen in estradiol :

$\frac{z\times 16 g/mol}{272.37 g/mol}\times 100=11.75\%$

z = 2

The molecular formula of estradiol is: $C_xH_yO_z:C_{18}H_{24}O_2$

7 0

3 years ago

Who can help me please ? Yes I will give BRAINLIST . And yes this is 6th grade work . Please help me ( it’s science btw )

lana [24]

Answer:

true and b are the answers I think

6 0

3 years ago

Read 2 more answers