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Vaselesa [24]
3 years ago
6

One gram is approximately the same as half the mass of a new U.S.

Chemistry
1 answer:
MrRa [10]3 years ago
4 0

Answer:

b) dime

Explanation:

a dime is approximately 2.2g

half of this is 1.1g, which can be rounded down to one gram.

hope this helps

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Chemical formula for aluminum hydroxide is Al(OH)3 which of the following is true aluminum
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The answer to yo question is ( it has three OH groups). 
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Which of the following is a compound machine?
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Characteristics of matter that cannot be changed are called
olchik [2.2K]
It is called Mass.

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A sample of CO2 weighing 86.34g contains how many molecules?
irakobra [83]

Answer:

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General Formulas and Concepts:

<u>Chemistry - Atomic Structure</u>

  • Reading a Periodic Table
  • Using Dimensional Analysis
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Explanation:

<u>Step 1: Define</u>

86.34 g CO₂

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

Avogadro's Number

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<u>Step 3: Convert</u>

<u />86.34 \ g \ CO_2(\frac{1 \ mol \ CO_2}{44.01 \ g \ CO_2} )(\frac{6.022 \cdot 10^{23} \ molecules \ CO_2}{1 \ mol \ CO_2} ) = 1.18141 × 10²⁴ molecules CO₂

<u>Step 4: Check</u>

<em>We are given 4 sig figs. Follow sig fig rules and round.</em>

1.18141 × 10²⁴ molecules CO₂ ≈ 1.181 × 10²⁴ molecules CO₂

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Energy from the sun. Solar energy is the original source of most energy on Earth. There are many ways we use energy from the Sun.

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