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3 years ago

£ 5.1.4 Quiz: Hydrocarbons What is the name of this molecule?

Chemistry

2 answers:

Lisa [10]3 years ago

5 0

£ is pounds sterling not a molecule

lisov135 [29]3 years ago

3 0

£ is not a molecule. It is a currency. That is pounds sterling, used in the U.K.

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Fill in the blanks and balance with the correct coefficient

MrRissso [65]

$\huge\mathrm{ \underline{Answer}}࿐$

The Balanced equation will be :

$\mathrm{ \boxed2Fe + \boxed3Cl_2 \rightarrow \boxed2FeCl_3}$

The Coefficients are :

$Fe - 2$

$Cl_2 - 3$

$FeCl_3 - 2$

_____________________________

$\mathrm{ \#TeeNForeveR}$

4 0

2 years ago

CH4 + O2 → CO2 + H2O

Scilla [17]

Answer:

9.8 × 10²⁴ molecules H₂O

General Formulas and Concepts:

Atomic Structure

Reading a Periodic Table
Moles
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.

Organic

Naming carbons

Stoichiometry

Analyzing reaction rxn
Using Dimensional Analysis

Explanation:

Step 1: Define

[RxN - Unbalanced] CH₄ + O₂ → CO₂ + H₂O

[RxN - Balanced] CH₄ + 2O₂ → CO₂ + 2H₂O

[Given] 130 g CH₄

Step 2: Identify Conversions

Avogadro's Number

[RxN] 1 mol CH₄ → 2 mol H₂O

[PT] Molar Mass of C: 12.01 g/mol

[PT] Molar Mass of H: 1.01 g/mol

Molar Mass of CH₄: 12.01 + 4(1.01) = 16.05 g/mol

Step 3: Stoichiometry

[DA] Set up conversion: $\displaystyle 130 \ g \ CH_4(\frac{1 \ mol \ CH_4}{16.05 \ g \ CH_4})(\frac{2 \ mol \ H_2O}{1 \ mol \ CH_4})(\frac{6.022 \cdot 10^{23} \ molecules \ H_2O}{1 \ mol \ H_2O})$
[DA] Divide/Multiply [Cancel out units]: $\displaystyle 9.75526 \cdot 10^{24} \ molecules \ H_2O$

Step 4: Check

Follow sig fig rules and round. We are given 2 sig figs.

9.75526 × 10²⁴ molecules H₂O ≈ 9.8 × 10²⁴ molecules H₂O

8 0

2 years ago

Element X reacts with chlorine to form an ionic compound that has the formula XCl₂. To which group on the Periodic Table could e

marishachu [46]

Answer:

Group 2 is the correct answer.

Explanation:

Chlorine has a charge -1. It means that X is +2 so that the formula is XCl2.

4 0

3 years ago

Which statement best explains why Earth's outer core is in liquid form?

sweet-ann [11.9K]

Answer:

The Answer is A, The iron-nickel alloy melts due to hot temperatures.

Explanation:

I took the test on edgenuity :) hope this helps.

7 0

3 years ago

Read 2 more answers

It has been established that 8.0x10^4 tons of gold (Au) have been mined. Assume gold cost $350 per ounce. Whats the total worth

bazaltina [42]

So first lets find out how much gold there is. 10^4=10,000so that means 8.0x10,000= 8,000. now we have to find out how much money that is. All we have to do is multiply 8,000 by 350. When multiplied you get $2,800,000

7 0

2 years ago