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podryga [215]
2 years ago
12

Study Guide for Unit 3 1. Most rocks are a mixture of what?

Chemistry
1 answer:
Kipish [7]2 years ago
7 0

Answer:

most rocks are a mixture of crystals of one or more minerals, or organic matter

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Using the reaction C12H22O11 + 12 O2 ->12CO2 + 11H2O (e). How many grams of carbon dioxide can be produced from 456.7g sucros
klio [65]

Answer:

704.6 g CO2

Explanation:

MM sucrose = 342.3 g/mol

MM CO2 = 44.01 g/mol

g CO2 = 456.7 g sucrose x (1 mol sucrose/MM sucrose) x (12 moles CO2/1 mol sucrose) x (MM CO2/1mol CO2) = 704.6 g CO2

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How are elements in the last column of the periodic table similar?
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3 years ago
For the reaction
ddd [48]

Answer:

52.2 g

Explanation:

Step 1: Write the balanced equation

3 KOH + H₃PO₄ ⟶ K₃PO₄ + 3 H₂O

Step 2: Calculate the moles corresponding to 89.7 g of KOH

The molar mass of KOH is 56.11 g/mol.

89.7 g × 1 mol/56.11 g = 1.60 mol

Step 3: Calculate the moles of H₃PO₄ needed to react with 1.60 moles of KOH

The molar ratio of KOH to H₃PO₄ is 3:1. The moles of H₃PO₄ needed are 1/3 × 1.60 mol = 0.533 mol.

Step 4: Calculate the mass corresponding to 0.533 moles of H₃PO₄

The molar mass of H₃PO₄ is 97.99 g/mol.

0.533 mol × 97.99 g/mol = 52.2 g

3 0
2 years ago
2. What will you change (the independent variable) in each test?
skad [1K]

Answer:the other vaiabable

Explanation:

8 0
3 years ago
I need help plz ill give u Brainliest plzz i need help...Two students are discussing gravity. One student says that there is a g
DIA [1.3K]

Answer:

the first.

Explanation:

Newton's law of universal gravitation, in part, states that every particle attracts every other particle in the universe.

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