2 years ago

What type of reaction is represented by the chemical equation shown

Chemistry

1 answer:

barxatty [35]2 years ago

4 0

Answer:

Decomposition reaction

Explanation:

2PbO2 → 2PbO + O2

2PbO2 is reactant.

2PbO + O2 is the product.

Definition : -

Decomposition reaction is a chemical reaction in which a single reactant breaks down to simpler products.

You might be interested in

How many atoms altogether make up one molecule of glucose

lilavasa [31]

Answer:

24 atoms makes altogether a molecule of glucose

7 0

3 years ago

The following reaction shows sodium carbonate reacting with calcium hydroxide.

velikii [3]

Ans: 15.1 grams

Given reaction:

Na2CO3 + Ca(OH)2 → 2NaOH + CaCO3

Mass of Na2CO3 = 20.0 g

Molar mass of Na2CO3 = 105.985 g/mol

# moles of Na2CO3 = 20/105.985 = 0.1887 moles

Based on the reaction stoichiometry: 1 mole of Na2CO3 produces 2 moles of NaOH

# moles of NaOH produced = 0.1887*2 = 0.3774 moles

Molar mass of NaOH = 22.989 + 15.999 + 1.008 = 39.996 g/mol

Mass of NaOH produced = 0.3774*39.996 = 15.09 grams

5 0

2 years ago

Help?<br> The question is down below.

Murrr4er [49]

The first three are T I don’t know about the next two and the last one is T

6 0

2 years ago

Read 2 more answers

Sam believes the rock is more denser than the pencil. He measured the mass of the rock to be 8.5 grams and volume to be 4.5mL. H

mezya [45]

Answer:

Rock

Explanation:

Let's calculate the density of each object:

Rock:

$Density = \frac{mass}{volume}=\frac{8.5\ g}{4.5\ mL}=1.9\ g/mL$

Pencil:

$Density = \frac{mass}{volume}=\frac{2.4\ g}{4.5\ mL}=0.53\ g/mL$

Therefore the rock is denser.

6 0

2 years ago

The temperature of a sample of water in the liquid phase is raised 30 degrees Celsius by the addition of 3762 J. What is the mas

Butoxors [25]

The answer is A because it’s how you calculate the mass

3 0

2 years ago