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pentagon [3]
3 years ago
14

When vinegar and baking soda react, the mixture becomes cold to the touch and a gas and a new liquid substance are formed. Which

best describes what is occurring in the reaction? The reaction is chemical and endothermic. The reaction is chemical and exothermic. The reaction is non-chemical and endothermic. The reaction is non-chemical and exothermic.
Chemistry
2 answers:
Anastaziya [24]3 years ago
8 0

Answer:

The reaction is chemical and endothermic.

Explanation:

The process taking place is a chemical reaction and is exothermic because endothermic means it is making things colder while releasing heat.

djyliett [7]3 years ago
4 0

Answer:

A

Explanation:

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leva [86]
<h3>Answer:</h3>

0.819 mol Ag

<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
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<u>Chemistry</u>

<u>Atomic Structure</u>

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<u>Stoichiometry</u>

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<h3>Explanation:</h3>

<u>Step 1: Define</u>

4.93 × 10²³ atoms Ag

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

Avogadro's Number

<u>Step 3: Convert</u>

  1. Set up:                              \displaystyle 4.93 \cdot 10^{23} \ atoms \ Ag(\frac{1 \ mol \ Ag}{6.022 \cdot 10^{23} \ atoms \ Ag})
  2. Divide:                              \displaystyle 0.818665 \ mol \ Ag

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

0.818665 mol Ag ≈ 0.819 mol Ag

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So here, we got:

3.01⋅1022Mg atoms⋅1mol6.02⋅1023M gatoms=0.05mol

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