All categories

3 years ago

HELP!

Chemistry

1 answer:

MAVERICK [17]3 years ago

4 0

Answer:

Explanation:

energy cannot be created or destroyed like solar energy for instance. it is already energy because it comes from the sun and for other reason.

Hope this helps!

You might be interested in

5) What state of matter are these neon atoms in?

seraphim [82]

Answer:

when liquid (at b.p. ) Neon is a chemical element with the symbol Ne and atomic number 10. It is a noble gas. Neon is a colorless, odorless, inert monatomic gas under standard conditions, with about two-thirds the density of air.

Appearance: colorless gas exhibiting an orang...

Group: group 18 (noble gases)

Phase at STP: gas

8 0

3 years ago

Could someone help me! Consider a cup made of plastic. What are the pros of using plastic?

lozanna [386]

Answer:

It's cheap to make, and its recyclable

3 0

3 years ago

Gaseous butano (CH,(CH),CH) will react with gaseous oxygen (0) to produce gaseous carbon dioxide (CO2) and goseous woter (11,0).

slega [8]

Answer:

Firstly, We have to convert it in the Miles formula...

No. of moles = Mass given/Molar Mass

So, the final answer be come

<h3> Ans - 50.8 gm and there same % is 50.8% butane in reaction </h3>

5 0

2 years ago

A cylindrical glass tube of length 27.4cm and radius 4 cm is filled with gas. The empty tube has a mass of 254.3 g. The tube fil

Temka [501]

Density of the gas is 3.05 × 10⁻³ g / cm³.

Explanation:

Volume of the cylinder = π r² h

where r is the radius and h is the height of the height or the length of the glass tube.

Here r = 4 cm and h = 27.4 cm

Volume of the cylinder = 3.14 × 4 × 4 × 27.4 = 1376.6 cm³

We have to find the mass of the gas by subtracting the mass of the tube filled with the substance from the mass of the empty tube.

Mass of the substance = 258.5 - 254.3 = 4.2 g

We have to find the density using the formula as,

$$ Density = \frac{mass}{volume}$

Plugin the values as,

$$ Density = \frac{4.2}{1376.6}$

= 3.05 × 10⁻³ g / cm³

So the Density of the gas is 3.05 × 10⁻³ g / cm³.

3 0

3 years ago

Suppose you are a member of your city planning board. A company wants to build a large shopping mall near a river in your area.

Flura [38]

A should be the answer.

8 0

3 years ago

Read 2 more answers