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PIT_PIT [208]
4 years ago
12

Ill give u brainliest pls help i only have until 1:00!

Chemistry
2 answers:
garik1379 [7]4 years ago
8 0

Astronomers would use astronomical units when measuring objects in a solar system. Lightyears would be used when measuring objects outside of our solar system.

Answer: When measuring in a solar system

gain integrity

OLEGan [10]4 years ago
7 0

Perhaps when they are trying to find the distance of an asteroid to the Earth to find out whether or not it is a hazard to Earth.

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How many grams are in 0.75 moles of SO2
lana66690 [7]
<h3>Answer:</h3>

48 g SO₂

<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>Atomic Structure</u>

  • Reading a Periodic Table

<u>Stoichiometry</u>

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

<u>Step 1: Define</u>

0.75 mol SO₂

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

[PT] Molar Mass of S - 32.07 g/mol

[PT] Molar Mass of O - 16.00 g/mol

Molar Mass of SO₂ - 32.07 + 2(16.00) = 64.07 g/mol

<u>Step 3: Convert</u>

  1. Set up:                              \displaystyle 0.75 \ mol \ SO_2(\frac{64.07 \ g \ SO_2}{1 \ mol \ SO_2})
  2. Multiply/Divide:                \displaystyle 48.0525 \ g \ SO_2

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 2 sig figs.</em>

48.0525 g SO₂ ≈ 48 g SO₂

7 0
3 years ago
How many moles are in 63 grams of lithium nitrite, LiNO2?
marshall27 [118]

Answer:

1.19moles

Explanation:

Li-7

N-14

O2-32

moles*(7+14+32)g/mol=63g

moles=1.19

6 0
2 years ago
Question question question
Maksim231197 [3]
Hehehehehheheheheheheheheheh
5 0
3 years ago
How will an increase in pressure affect the following chemical equilibrium:
tresset_1 [31]

Answer:

Will up 2NO

Explanation:

The future gas particle will be increased by about 4.2. (estimated) Pressure is absorbed, and by the gas, created heavier.

8 0
3 years ago
Read 2 more answers
When a book sits on a shelf, what force (If Any) does the shelf exert on the book?
Bad White [126]
I'm pretty sure its the weight of the book
3 0
3 years ago
Read 2 more answers
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