Answer:
Volume
Explanation:
A cubic centimeters(cm³) is a measure of volume that is equal to a cube with width, length and height are all 1 centimeters. then, multiply length, width and height values together, this will give you the volume of the cube. 1 inch = 2.54 centimeters
A star’s spectrum will change over time due to it being dependent on some properties in the photosphere such as :
<h3>What is a Star?</h3>
This refers to an astronomical object composed of hydrogen and helium and held together by gravity. As stars age or get older, changes occur but are very slow.
This is why most stars spend their lifetime in the main sequence but does't invalidate that they won't remain constant as their constituents also become used up with time.
This is therefore the reason why star’s spectrum will change over time as the most appropriate choice.
Read more about Star here brainly.com/question/2193636
#SPJ1
In some kind of a 0.800 m ba(oh)2 solution, each individual ion has a concentration of 1.81M.
<h3>What are the 5 most common electrolytes?</h3>
Together with magnesium, calcite, phosphate, and bicarbonates, salt, potassium, & chloride are the important electrolytes. We obtain electrolytes from our diet and drinks. Unbalanced amounts of these electrolytes might result in either low or high levels.
<h3>Briefing:</h3>
In a solution of Ba(OH)2 at a concentration of 0750 M, Ba2+ is the predominant ion. = 0.800M and OH⁻ = 1.50 M.
The dissociation equation is:
Ba(OH)²(s)=Ba²+aq+2OH-aq
Using the Ba(OH)2 mole ratio: Ba₂⁺which is 1: 1 the concentration of Ba² is = 0.750M
By utilising Ba(OH)2's mole ratio: which is 1:2 the concentration of
OH=0.800*2/1
=1.81M
Individual ion concentration is therefore ba(oh)2 = 0.800M & = 1.81M.
To know more about electrolyte visit:
brainly.com/question/14958132
#SPJ4
Answer:
7200 kPa
Explanation:
Applying,
PV/T = P'V'/T'................ Equation 1
Where P = Initial pressure of neon gas, V = Initial volume of neon gas, T = Initial temperature of neon gas, P' = Final pressure of neon gas, V' = Final volume of neon gas, T' = Final Temperature of neon gas
Make P' the subject of the equation
P' = PVT'/V'T.............. Equation 2
Given: P = 900 kPa, V = 8.0 L, T = 300 K, V' = 2.0 L, T' = 600 K
Substitute these values into equation 2
P' = (900×8×600)/(2×300)
P' = 7200 kPa
Answer: 0.4M
Explanation:
This would be much easier if we first analized what was given from the question. This is illustrated below:
C1 = 2M
V1 = 25mL
C2 =?
V2 = 125mL
C1V1 = C2V2
2x25= C2 x 125
Divide both side by 125, we have:
C2 = (2x25) /125
C2 = 0.4M
Therefore, the molarity of potassium bromide formed will be 0.4M