CHEMISTRY HIGH SCHOOL

Speed of sound is greater in aluminum or steel quora . True or False

Answers

Answer 1
Answer:

Answer:

False.

Explanation:

False. The speed of sound is greater in aluminum than in steel.

Related Questions

What volume change occurs to a 400.0 mL gas sample as the temperature increases from 22.0 °C to 30.0°C?
Most tornadoes carry wind speeds that range fromA. 1 to 105 km per hour. B. 267 to 322 km per hour. C. 105 to 177 km per hour. D. 178 to 266 km per hour.
Which of the following uses a nonrenewable energy resource to generate energy? A. nuclear power plant B. wind farm C. fireplace that burns wood D. biomass power plant
For which of the following equilibria does Keq= [O2]?a. O2(l)<=>O2(g)b. 2O3(g)<=>3O2(g)c. 2H2O(l)<=>2H2(g)+ O2(g)d. 2Hg(s)+ O2(g)<=>2HgO(s)e. C(s)+ O2(g)<=>CO2(g)
Gold’s natural state has a definite shape and a definite volume. What is gold’s natural state(s)?

When a substance freezes, what happens to the mass? The mass stays constant as it changes from a liquid to a solid.

The mass increases as it changes from a liquid to a solid.

The mass decreases as it changes from a liquid to a solid.

There is no mass once the substance becomes a solid

Answers

The correct answer is the first statement. The mass stays constant as it changes from a liquid to a solid. According to the Law of Conservation of Mass, mass is conserved. It is not created nor destroyed. Therefore, as the substance turn into solid, all of the substance goes only to the solid phase.
The mass stays constant as it changes from a liquid to a solid

A sample of nitric acid contains both H3O ions and NO3 ions. This sample has a pHvalue of 1.
What is the color of methyl orange after it is added to this sample?

Answers

The indicator will lead to a solution that has a red color. Methyl orange is an indicator used in titrations because it changes colors at all pH values. When in acidic solution it is red and in basic it is yellow. A pH of 1 is acidic, therefore a red solution.

Who is referred to as “the Father of Modern Chemistry”a. Andreas Vesalius
c. Robert Boyle
b. William Harvey
d. Antonine Lavoiser

Answers

Antonine Lavoiser is referred to as “the Father of Modern Chemistry”. The answer is letter D. He was the one who discovered the role of oxygen in combustion processes. Oxygen is an oxidizing reagent.

At what temperature is a gas likely to have the lowest rate of diffusion?10
150
b
210
с
249
d
300

Answers

Answer:

150

Explanation:

A gas will have the lowest rate of diffusion the lowest temperature from a given set of temperature values.

Since 150 is the lowest value, then this represents the lowest rate of diffusion.

The rate of diffusion is related to the prevalent temperature. When gases diffuse, they move from regions of high concentration to the at of low concentration. They must have enough kinetic energy to move in order to diffuse.

The higher the temperature, the more the kinetic energy and higher rate of diffusion.

Answer:

15º

Explanation:

The rate of diffusion is lower when the temperature is lower. Since 15º is the lowest temperature of the answers, it has the lowest rate of diffusion.

Why do scientific ideas change?

Answers

Answer: because they make there hypothesis before they actually get the facts.

Explanation:

All radioactive nuclides undergo what

Answers

They undergo nuclear fission.
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In which solution will thymol blue indicator appear blue?(1) 0.1 M CH3COOH (3) 0.1 M HCl (2) 0.1 M KOH (4) 0.1 M H2SO4