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3 years ago

When an ice cube melts what happens to the matter that once made up the cube

Chemistry

1 answer:

Vinil7 [7]3 years ago

3 0

Water is whats left so then that evaporates

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Over time the Mexican-Free Tailed bat has evolved to be able to echolocate in the dark to find prey. Bats are able to see, but d

Law Incorporation [45]

Answer:

Light

Explanation:

1 They were not albe to see at night because it was dark so the lack of light caused them to use echolocation.

Hope this helps

4 0

3 years ago

How many grams of carbon are contained in one mole of<img src="https://tex.z-dn.net/?f=C_%7B3%7DH_%7B8%7D" id="TexFormula1" titl

NNADVOKAT [17]

$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\qquad \tt \rightarrow \:36 \:\: g$

____________________________________

$\large \tt Explanation \: :$

The given compound has 3 carbon atoms, so in 1 mole of that compound, there will be 3 moles of carbon atoms.

Mass of each mole of carbon atoms = 12 g

For 3 mole carbon atoms, it will be 12 × 3 = 36 grams

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

4 0

2 years ago

A piece of limestone erodes due to acid rain. This process can be best described as a......

arsen [322]

Slow chemical change

It is a chemical change because the erosion is due to the chemical reaction between the acid and the in the rain and the calcium carbonate.

It is slow due to the concentration of acid is low.

3 0

3 years ago

How many molecules are there in a 1.43 mole sample of H2O2?

SIZIF [17.4K]

One mole of hydrogen peroxide contains 6.02 x 10^23 molecules of hydrogen peroxide. And each molecule contains 4 atoms, so the answer is 4 x 6.02 x 10^23.

5 0

3 years ago

Is ammonium ion a bronsted base

Leokris [45]

Unlikely. It's unlikely for ammonium ion ${\text{NH}_4}^{+}$ to accept a proton $\text{H}^{+}$ and act as a Bronsted-Lowry Acid.

<h3>Explanation</h3>

What's the definition of Bronsted-Lowry acids and bases?

Bronsted-Lowry Acid: a species that can donate one or more protons $\text{H}^{+}$ in a reaction.

Bronsted-Lowry Base: a species that can accept one or more protons $\text{H}^{+}$

Ammonium ions ${\text{NH}_4}^{+}$ are positive. Protons $\text{H}^{+}$ are also positive.

Positive charges repel each other, which means that it will be difficult for ${\text{NH}_4}^{+}$ to accept any additional protons. As a result, it's unlikely that ${\text{NH}_4}^{+}$ will accept <em>any</em> proton and act like a Bronsted-Lowry Base.

6 0

3 years ago