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myrzilka [38]
4 years ago
7

A marine biologist is preparing a deep-sea submersible for a dive. The sub stores breathing air under high pressure in a spheric

al air tank that measures 68.0cm wide. The biologist estimates she will need 4700.L of air for the dive. Calculate the pressure to which this volume of air must be compressed in order to fit into the air tank. Write your answer in atmospheres. Be sure your answer has the correct number of significant digits.
Chemistry
1 answer:
bixtya [17]4 years ago
8 0

Answer:

the pressure to which this volume of air must be compressed in order to fit into the air tank is 28.5478 atm

Explanation:

the solution is attached in the Word file

Download docx
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Plz answer all 3, I will give 5 stars and brainiest!!! :)<br><br> THANKS
Cerrena [4.2K]

Answer:

B. Positive charge is caused by lack of electrons. A positive ion is formed by the loss of negatively charged electrons. Although the number of protons does not change in the ion, there is an excess number of protons over electrons which produces the positive charge. All electrons in the outer energy level are lost.

C. If there are more electrons than protons, then the element is a negative ion. The amount of neutrons does not play a factor into making a difference between an atom or an ion.

Explanation:

please give brainliest. :)

and have a great day!

5 0
3 years ago
Complete the balanced chemical reaction for the following weak base with a strong acid. In this case, write the resulting acid a
abruzzese [7]

Firstly, the <u>complete question </u>would be:

Complete the balanced chemical reaction for the following weak base with a strong acid. In this case, write the resulting acid and base as its own species in the reaction.

NH₃(aq)+HCl(aq)→

<u>Solution:</u>

In this reaction, the hydrogen from the HCl is taken up by ammonia.

So, the balanced chemical reaction would be:

NH₃ (aq) + HCl (aq)  ----> NH₄⁺ (aq)  + Cl⁻ (aq)

The chorine ion (Cl⁻) is the basic, whereas ammonium (NH₄⁺) is the acid.

<h3><u>What are acid- Base reaction ?</u></h3>

Both biology and industrial chemistry depend on acid-base reactions. In addition, we frequently come across acids or bases in our houses, grocery stores, and pharmacies. For instance, antacids are bases whereas aspirin is an acid (acetylsalicylic acid). Actually, every home cook who has made mayonnaise or marinated fish with lemon juice has performed an acid-base reaction. Let's first go over some of the features of these reactions before moving on to the characteristics of acids and bases.

A material is said to be an acid if it dissolves in water to form H+ ions, whereas a substance is said to be a base if it dissolves in water to form OH- ions. In actuality, this is the only set of definitions that could exist. The definitions of acids and bases have evolved significantly as scientists have learned more about them, despite the fact that the general characteristics of acids and bases have been known for more than a thousand years.

To learn more about acid-base reactions, refer to:

brainly.com/question/15220646

#SPJ4

7 0
2 years ago
If 3.5 g of element X reacts with 10.5 g of element Y to form the compound XY.
irina [24]

Answer:

The percentage by mass of element X is 25 %.

The percentage by mass of element Y is 75 %

Explanation:

X + Y ⇒ XY

3.5 g of element X + 10.5 g of element Y = 14g in total

⇒Element X : 3.5g / 14g = 0.25 ⇒ x 100 % = 25 %

⇒Element Y : 10.5 / 14 = 0.75 ⇒ x 100 % = 75 %

The percentage by mass of element X is 25 %.

The percentage by mass of element Y is 75 %

8 0
4 years ago
How do rock transformations on Venus and Earth indicate the planetary similarities between the two planets?
Gemiola [76]

Answer:

Both the Earth and Venus show the appearance of igneous rocks due to the cooling of the magma.

Explanation:

As we know, ignea rock is the first step in the transformation of rocks. This rock is formed by the overflow of terrestrial magma which, upon cooling, turns into ignea rock, which will undergo metamorphism and transform into metamorphic rock, which will continue to undergo metamorphosis until it becomes the other rocks that complete the rock cycle. This is a terrestrial process that can be found on Venus, which also presents the cooling of magma in the formation of ignea rock, which will undergo metamorphism, transforming into other rocks, the way it occurs on Earth.

3 0
3 years ago
An FM radio station broadcasts electromagnetic radiation at a frequency of 103.4 MHz (megahertz; MHz =106s–1). Calculate the w
kap26 [50]

Answer:

Wavelength=2.899\ m

Explanation:

The relation between frequency and wavelength is shown below as:

c=frequency\times Wavelength

c is the speed of light having value 2.998\times 10^8\ m/s

Given, Frequency = 103.4 MHz = 103.4\times 10^{6}\ Hz  ( as 1 MHz = 10⁶ Hz)

Thus, Wavelength is:

Wavelength=\frac{c}{Frequency}

Wavelength=\frac{2.998\times 10^8}{103.4\times 10^{6}}\ m

Wavelength=2.899\ m

5 0
3 years ago
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