1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Greeley [361]
3 years ago
6

Please can someone please help me !!

Chemistry
1 answer:
Anestetic [448]3 years ago
5 0

Answer:

False

Explanation:

You might be interested in
Find the mass of a 60 ML volume of water if the density of water is 1 g/mL
valkas [14]

Answer:  60 grams

Explanation:  (60 ml)*(1g/ml) = 60g

3 0
2 years ago
Can anyone help me please this is due and i need help someone check over my answers
Yuliya22 [10]
4.) D
10.) C
12.) D
13.) D
14.) D
15.) D
5 0
3 years ago
How many moles of Al would be produced from 20 moles of Al2O3?<br> 2Al2O3<br> -&gt;<br> 4A1 + 302
Evgesh-ka [11]
<h3>Answer:</h3>

\displaystyle 40 \ mol \ Al

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

[RxN - Balanced] 2Al₂O₃ → 4Al + 3O₂

[Given] 20 mol Al₂O₃

<u>Step 2: Identify Conversions</u>

[RxN] 2 mol Al₂O₃ → 4 mol Al

<u>Step 3: Stoich</u>

  1. [DA] Set up:                                                                                                     \displaystyle 20 \ mol \ Al_2O_3(\frac{4 \ mol \ Al}{2 \ mol \ Al_2O_3})
  2. [DA] Multiply/Divide [Cancel out units]:                                                         \displaystyle 40 \ mol \ Al

<u>Step 4:Check</u>

<em>Follow sig fig rules and round. We are given 1 sig fig.</em>

Since our final answer already has 1 sig fig, there is no need to round.

4 0
2 years ago
Is quartz(SiO2) a substance or mixture?
Illusion [34]
Quartz is a substance because the material has uniform properties throughout and is held together via chemical bonds.
8 0
3 years ago
Which element would you expect to have properties similar to Chlorine (Cl)
jeyben [28]

Answer:

Iodine

Explanation:

It's in the same group as chlorine.

5 0
3 years ago
Other questions:
  • An important reaction sequence in the industrial production of nitric acid is the following: N2(g) + 3H2(g) → 2NH3(g) 4NH3(g) +
    7·1 answer
  • Which best describes a reaction in a state of equilibrium?
    7·1 answer
  • Which of the following would have the highest viscosity?
    6·2 answers
  • Which of the following processes involves only physical change? A. decay B. sublimation C. digestion D. combustion
    5·2 answers
  • Will it float or sink?
    6·2 answers
  • Turning milk into plastic easy
    5·1 answer
  • Which equation shows a physical change?
    9·2 answers
  • How large is a piece of gold with density 19.32g/cm and mass 318.97g
    7·1 answer
  • How many moles of oxygen gas are necessary to completely react with 10.6 moles of propane? C3H8(g) + 5 O2(g) --&gt; 3 CO2 (g) +
    12·1 answer
  • Danny lowers the sails on his boat. He paddles upstream at 19 km/hr. The current is still running downstream at 15 km/hr. What i
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!