All categories

3 years ago

Answer please!!!!!!!!!!!!!!!!!!!!!!!!✌✌✌

Chemistry

1 answer:

Nadya [2.5K]3 years ago

3 0

Answer:

hxtististsy z7tzotz8tsx lhsitzrizrs ypzyztozkt udriztkzto

You might be interested in

Which scientist invented the first simple Microscope ?

Vinvika [58]

Answer:

D. Leeuwenhoek

Explanation:

6 0

3 years ago

Thermal energy changes states because

Artyom0805 [142]

.Thermal energy, an extensive property, depends on the number of particles in a substance as well as the amount of energy each particle has. If either the number of particles or the amount of energy in each particle changes, the thermal energy of the sample changes. With identi- cally sized samples, the warmer substance has the greater ther- mal energy. hope that helps.

7 0

3 years ago

Which model represents an element? O A. OB. O c. O D.

Readme [11.4K]

Answer: B represents an element.

8 0

2 years ago

An exhaled air bubble underwater at 290.

Vinil7 [7]

The answer for the following problem is mentioned below.

Therefore the final volume of the gas is 52.7 ml.

Explanation:

Given:

Initial pressure ( $P_{1}$ ) = 290 kPa

Final pressure ( $P_{2}$ ) = 104 kPa

Initial volume ( $V_{1}$ ) = 18.9 ml

To find:

Final volume ( $V_{2}$ )

We know;

From the ideal gas equation;

P × V = n × R × T

where;

P represents the pressure of the gas

V represents the volume of gas

n represents the no of the moles

R represents the universal gas constant

T represents the temperature of the gas

So;

P × V = constant

P ∝ $\frac{1}{V}$

From the above equation;

$\frac{P_{1} }{P_{2} } = \frac{V_{2} }{V_{1} }$

$P_{1}$ represents the initial pressure of the gas

$P_{2}$ represents the final pressure of the gas

$V_{1}$ represents the initial volume of the gas

$V_{2}$ represents the final volume of the gas

Substituting the values of the above equation;

$\frac{290}{104}$ = $\frac{V_{2} }{18.9}$

$V_{2}$ = 52.7 ml

Therefore the final volume of the gas is 52.7 ml.

6 0

3 years ago

You are a marine biologist who wants to study what type of zooplankton (microscopic animals that live in the ocean and feed larg

timama [110]

Answer:

The advantage of the compound light microscope over the dissecting microscope is the magnification power of the telescope. Compound light microscope magnifies from 40x up to 1,000x while dissecting microscope magnifies up to 40 x only. In this regard, more magnification power is advantageous to view smaller objects.

4 0

3 years ago

Answer please!!!!!!!!!!!!!!!!!!!!!!!!✌✌✌​

Answer please!!!!!!!!!!!!!!!!!!!!!!!!✌✌✌