Answer:
It is the total distance traveled over the total time .
Answer: after years of research if the evidence still supports a change the theory will be revised
Explanation:
I think that’s it
Answer:
a. alumina
b. corundum
h. bauxite
Explanation:
The following compounds have the maximum amount of Aluminum oxide -
Alumina -
Alumina is known as the aluminium oxide , with a formula of ,
It is the most commonly occuring oxide of Aluminum metal .
Corundum -
It is the crystalline form , with the molecular formula of ,
It also have some trace of other metals like , chromium , vanadium , titanium.
bauxite -
It is the sedimentary rock , which has very high quantity of Aluminium metal .
Answer:
∴ The absolute pressure of the air in the balloon in kPa = 102.69 kPa.
Explanation:
- We can solve this problem using the general gas law:
<em>PV = nRT</em>, where,
P is the pressure of the gas <em>(atm)</em>,
V is the volume of the gas in L <em>(V of air = 6.23 L)</em>,
n is the no. of moles of gas <em>(n of air = 0.25 mole)</em>,
R is the general gas constant <em>(R = 0.082 L.atm/mol.K)</em>,
T is the temperature of gas in K <em>(T = 35 °C + 273 = 308 K</em>).
∴ P = nRT / V = (0.25 mole)(0.082 L.atm/mol.K)(308 K) / (6.23 L) = 1.0135 atm.
- <em>Now, we should convert the pressure from (atm) to (kPa).</em>
1.0 atm → 101.325 kPa,
1.0135 atm → ??? kPa.
∴ The absolute pressure of the air in the balloon in kPa = (101.325 kPa)(1.0135 atm) / (1.0 atm) = 102.69 kPa.
Answer:
The words science and technology can and often are used interchangeably. But the goal of science is the pursuit of knowledge for its own sake while the goal of technology is to create products that solve problems and improve human life. Simply put, technology is the practical application of science.
Science and technology help each other advance. Scientific knowledge is used to create new technologies. New technologies often allow scientists to explore nature in different ways and make new discoveries.
Examples of technologies that have helped science advance include the telescope and microscope. Hope this helps! =)