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Scrat [10]
3 years ago
5

Describe how greater distance affects the appearance of an object’s size and brightness

Chemistry
1 answer:
jeka943 years ago
4 0

Answer:

Distance also affects the apparent brightness of an object. A distant, but very energetic star can appear dimmer to us than a lower-energy, but closer one. ... Each of their effective temperatures results in a different brightness for the object. The quasar, however, is very far away, and so appears dim.

Explanation:

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NEED HELP WILL GIVE FOR BRAINLIEST PLEASE
SVEN [57.7K]

Yes. Compounds can have different properties than the elements that go into them.

EXAMPLE: water is a polar liquid, while pure hydrogen and pure oxygen are both nonpolar gasses.

8 0
3 years ago
Why is energy required for the boiling process?
-Dominant- [34]
The heat is the required energy.
5 0
3 years ago
Students working in lab accidentally spilled 17 l of 3.0 m h2so4 solution. they find a large container of acid neutralizer that
jek_recluse [69]

Answer is: 8568.71 of baking soda.

Balanced chemical reaction: H₂SO₄ + 2NaHCO₃ → Na₂SO₄ + 2CO₂ + 2H₂O.

V(H₂SO₄) = 17 L; volume of the sulfuric acid.

c(H₂SO₄) = 3.0 M, molarity of sulfuric acid.

n(H₂SO₄) = V(H₂SO₄) · c(H₂SO₄).

n(H₂SO₄) = 17 L · 3 mol/L.

n(H₂SO₄) = 51 mol; amount of sulfuric acid.

From balanced chemical reaction: n(H₂SO₄) : n(NaHCO₃) = 1 :2.

n(NaHCO₃) = 2 · 51 mol.

n(NaHCO₃) = 102 mol, amount of baking soda.

m(NaHCO₃) = n(NaHCO₃) · M(NaHCO₃).

m(NaHCO₃) = 102 mol · 84.007 g/mol.

m(NaHCO₃) = 8568.714 g; mass of baking soda.

8 0
3 years ago
Calculate the volume of an object (in mL) if the density of the object is 4.08 g/mL and the mass of the object is 10.02 g.
slega [8]

Answer:

<h2>The answer is 2.5 mL</h2>

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

volume =  \frac{mass}{density}  \\

From the question

mass of object = 10.02 g

density = 4.08 g/mL

The volume of the object is

volume =  \frac{10.02}{4.08}  \\  = 2.4558823...

We have the final answer as

<h3>2.5 mL to one decimal place</h3>

Hope this helps you

6 0
4 years ago
Question 7 of 32
sergeinik [125]

Answer:

The battery of a phone contains stores chemical energy. This energy is converted into electrical energy primarily when the phone is turned on. The chemical energy is also converted into light energy, sound energy and heat energy. With the passage of time, the energy will be changed back into the chemical energy when we will charge the phone again.

8 0
3 years ago
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