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2 years ago

Draw this image below. It shows one ton of feathers and one ton of bricks a. Compare the mass of the two substances:

Chemistry

1 answer:

bogdanovich [222]2 years ago

8 0

I don't understand the question

Can you elaborate further

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4. Jake surveyed his 25 classmates on their favorite flavor of

Eddi Din [679]

Answer:

Explanation:

In total there are 25 students. If you add up all the other students who liked flavors other than strawberry twist you will get 14. That means 14/25 students did not favor strawberry twist, while the other 11/25 did.

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2 years ago

Is each genus of organisms is divided into classes

Yuri [45]

Yes each and every organism is divided into different classes.

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3 years ago

Read 2 more answers

Which event always involves a chemical change A boiling B melting C conducting D burning

Andrew [12]

The answer is Burning

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3 years ago

A 0.4647-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.01962 mol of

Scilla [17]

Answer:

The essence including its given problem is outlined in the following segment on the context..

Explanation:

The given values are:

Moles of CO₂,

x = 0.01962

Moles of water,

$\frac{y}{2} =0.01961$

$y=2\times 0.01961$

$=0.03922$

Compound's mass,

= 0.4647 g

Let the compound's formula will be:

$C_{x}H_{y}O_{z}$

Combustion's general equation will be:

⇒ $C_{x}H_{y}O_{z}+x+(\frac{y}{4}-\frac{z}{2}) O_{2}=xCO_{2}+\frac{y}{2H_{2}O}$

On putting the estimated values, we get

⇒ $12\times x=1\times y+16\times z=0.4647$

⇒ $12\times 0.01962+1\times 0.03922+16\times z=0.4647$

⇒ $0.27466+16z=0.4647$

⇒ $z=0.01187$

Now,

x : y : z = $0.01962:0.03922:0.01187$

= $\frac{0.01962}{0.0118}:\frac{0.03922}{0.0188}:\frac{0.0188}{0.0188}$

= $1.6:3.3:1.0$

= $3:6:2$

So that the empirical formula seems to be "C₃H₆O₂".

8 0

2 years ago

An aqueous solution has a normal boiling point of 103.0°

torisob [31]

About 5 degrees that is

3 0

3 years ago