3 years ago

I need help with both of the questions fast plz!!!

Chemistry

1 answer:

Zielflug [23.3K]3 years ago

8 0

Answer: SMALLEST is lithium

LARGEST is Fluorine

Explanation:

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1. When this equation is balanced, Fe + 02 -.--> Fe203, what is the

Vilka [71]

Fe + O2 → Fe2O3

After balancing the eq.

4Fe + 3O2 → 2Fe2O3

Hope this will help u mate :)

4 0

3 years ago

What Factors determine surface Gravity?

ddd [48]

Answer: Gravity depends on two main factors.

Explanation: Those factors are mass and distance. I hope this helps!

7 0

2 years ago

Read 2 more answers

For the reaction, 2SO2(g) + O2(g) <--> 2SO3(g), at 450.0 K the equilibrium constant, Kc, has a value of 4.62. A system wa

Nady [450]

Answer:

To the left.

Explanation:

Step 1: Write the balanced reaction at equilibrium

2 SO₂(g) + O₂(g) ⇄ 2 SO₃(g)

Step 2: Calculate the reaction quotient (Qc)

Qc = [SO₃]² / [SO₂]² × [O₂]

Qc = 0.254² / 0.500² × 0.00855

Qc = 30.2

Step 3: Determine in which direction will proceed the system

Since Qc > Kc, the system will shift to the left to attain the equilibrium.

4 0

3 years ago

Given a solution with a Ph of 2.8, what is the [H3O+] of the solution?

Crank

$pH=-\log_{10} [H_3O^+] \Rightarrow [H_3O^+]=10^{-pH} \\ \\
pH=2.8 \\
\ [H_3O^+]=10^{-2.8} \approx 1.58 \times 10^{-3}$

The [H₃O⁺] of the solution is approximately 1.58 × 10⁻³ M.

6 0

3 years ago

What is the density of a book that weighs 550 grams and has a volume of 0.5 liters

Oksi-84 [34.3K]

Answer:

1.1gcm^-3

Explanation:

$density \: = \frac{mass}{volume}$

0.5l = 0.5*1000

= 500cm^3

Density = 550/500

Density =

${1.1gcm}^{ - 3}$

4 0

2 years ago