Which word in the passage is the key to understanding Ophelia’s tone? matter affrighted unbrac’d foul’d

The equation: 2pb(no₃)₂ --> 2pbo + 4no₂ + o₂ shows the decomposition of lead nitrate. How many grams of oxygen are produced w

SashulF [63]

Answer:

Explanation:

Hi there!

2Pb (no₃) -------> 2Pb + 4no₂ + o₂

Molecular mass of 4no₂ = 184g

Molecular mass of o₂ = 32g

From the reaction;

When 184 g of no₂ was formed 32 g of oxygen was formed.

When 1 g of no₂ was formed 32/184 g of oxygen was formed.

When 11.5 g of no₂ was formed (32/184)*11.5 g of oxygen was formed.

Therefore, when 11.5 g of no₂ was formed 2 g of oxygen was formed.

Hope it helps!

8 0

2 years ago

Match each fossil with the layer where it’ll be present based on those conditions.

elena-s [515]

The correct matches are:

Birds - A

Dinosaurs - B

Amphibians - C

Corals - D

Trilobites - E

By the statements presented, we have the situation where the trilobites are the oldest of the species, thus they will be on the bottom layer. The corals are second ones that emerged, so they will be found in the second bottom layer, and after them come the amphibians that will be found in the third layer. The dinosaurs evolved after the amphibians, so since they are younger than them, they will be located in the second layer from the top, with the birds evolving from the later dinosaurs and being the youngest, they will be found in the top layer.

6 0

3 years ago

What is the relationship between resistance and current for a given voltage?.

777dan777 [17]

The relationship between voltage, current, and resistance is described by Ohm's law. This equation, i = v/r, tells us that the current, i, flowing through a circuit is directly proportional to the voltage, v, and inversely proportional to the resistance, r.

5 0

2 years ago

A company ordered $400 worth of muffins. Bran muffins cost $2 each and blueberry muffins cost $4 each. If the company ordered tw

astra-53 [7]

Answer:

40 Bran Muffins

80 Blueberry Muffins

Explanation:

Let the number of Bran muffins ordered = x

The number of Blueberry muffins ordered = 2x <em>(it is given that the number of blueberry muffins is twice the number of bran muffins)</em>

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The cost of Bran muffins ordered = Number of Bran muffins * cost of 1 muffin

Cost of Bran muffins ordered = x * 2

Cost of Bran Muffins ordered = $ 2x

The cost of Blueberry muffins ordered = Number of Blueberry muffins * Cost of 1 blueberry muffin

Cost of Blueberry muffins ordered = 2x * 4

Cost of Blueberry muffins ordered = $ 8x

Since the sum of costs of Blueberry and Bran muffins is $400

Cost of Bran muffins + Cost of Blueberry muffins ordered = 400

2x + 8x = 400

10x = 400

x = 40

Hence, the number of Bran muffins ordered is 40

we are told that the number of Blueberry muffins is twice the number of Bran muffins

So,

Blueberry muffins = Bran muffins * 2

Blueberry Muffins = 40 * 2

Blueberry muffins = 80

So, the number of Blueberry muffins is 80

3 0

3 years ago

Which best describes how sorting tools organize data?

scoundrel [369]

1st one, Sorting tools rearrange data within columns and rows.

6 0

3 years ago

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