1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Valentin [98]
3 years ago
5

Which metallic substance would require the least amount of thermal energy to melt?

Chemistry
2 answers:
Len [333]3 years ago
5 0

Answer: C (Aluminum)

Explanation:

Aluminum would require the least amount of thermal energy to melt, because according to the chart, it has the lowest melting point (1218ºF) as compared to the melting points of Gold (1945ºF), Nickel (2646ºF), and Steel (2500ºC).

Art [367]3 years ago
3 0
Aluminum it has the least melting point so it’s aluminum. just look and see which is the lowest number
You might be interested in
A sample of helium gas at 27.0 °C and 3.60 atm pressure is cooled in the same container to a temperature of -73.0 °C. What is th
trasher [3.6K]

Answer: The new pressure, if volume and amount of gas do not change is 2.40 atm

Explanation:

To calculate the final temperature of the system, we use the equation given by Gay-Lussac Law. This law states that pressure of the gas is directly proportional to the temperature of the gas at constant pressure.

Mathematically,

\frac{P_1}{T_1}=\frac{P_2}{T_2}

where,

P_1\text{ and }T_1 are the initial pressure and temperature of the gas.

P_2\text{ and }T_2 are the final pressure and temperature of the gas.

We are given:

P_1=3.60atm\\T_1=27^0C=(27+273)K=300K\\P_2=?\\T_2=-73.0^0C=(273-73)=200K

Putting values in above equation, we get:

\frac{3.60}{300K}=\frac{P_2}{200K}\\\\P_2=2.40atm

Thus the new pressure, if volume and amount of gas do not change is  2.40 atm

5 0
3 years ago
In which situation would hydrogen bonding be present?​
sineoko [7]

Answer:

Water ?

Need more info.

Water is H_{2}<em>O</em>

Explanation:

6 0
3 years ago
Read 2 more answers
MARKING BRAINLIEST! please help asap, i need a and b, thank you
defon

The time required to reduce the concentration from 0.00757 M to 0.00180 M is equal to 1.52 × 10⁻⁴ s. The half-life period of the reaction is 9.98× 10⁻⁵s.

<h3>What is the rate of reaction?</h3>

The rate of reaction is described as the speed at which reactants are converted into products. A catalyst increases the rate of the reaction without going under any change in the chemical reaction.

Given the initial concentration of the reactant, C₀= 0.00757 M

The concentration of reactant after time t is C₁= 0.00180 M

The rate constant of the reaction, k = 37.9 M⁻¹s⁻¹

For the first-order reaction: C_t =C_0-kt

0.00180 = 0.00757 - (37.9) t

t =  1.52 × 10⁻⁴ s

The half-life period of the reaction: t_{\frac{1}{2} } =\frac{C_0}{2k}

t_{\frac{1}{2} } =\frac{0.00757}{2\times 37.9}

Half-life of the reaction = 9.98 × 10⁻⁵s

Learn more about the rate of reaction, here:

brainly.com/question/13571877

#SPJ1

5 0
1 year ago
three students made multiple weighings of a copper cylinder each using a different balance. Describe the accuracy and precision
ch4aika [34]
I think that you have put up an incomplete question. However, i am answering the question based on my research and knowledge. 

Lissa- accuracy and precision are both low
Lamont- accuracy and precision are definitely high
<span>Leigh Anne- accuracy is low but precision is definitely high.
</span>
I hope that this is the answer that you were looking for and the answer has definitely come to your desired help.
3 0
3 years ago
The substance oxidized causes the other substance to be reduced and is called the:.
blsea [12.9K]

Answer:hydrogen Peroxide

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following are building blocks of elements A. Atoms B. Protons C. Ions 2. Atoms are made up of A. Air,water,soil B.
    7·1 answer
  • Earth's climate has been stable throughout its history. True False
    7·1 answer
  • 8Ft<br> 14 ft<br> What is the Surface Area?
    14·1 answer
  • When you look at a speck of mold how many microbes are you most likely seeing
    6·2 answers
  • A cold pack manufacturer has decided to change the chemical in their cold pack from ammonium nitrate to ammonium chloride, a saf
    10·1 answer
  • Which describes the process that forms teflon tm? molecular fluorine (f2) undergoes polymerization. a fluorocarbon polymer break
    6·2 answers
  • When you look out the window you can see constantly moving air.Air is cycled in order to reach equilibrium
    5·1 answer
  • Why is volcanic ash a igneous rock
    10·1 answer
  • Calculate the percentage of yield when 20 grams of sodium chloride solution reacts with an excess amount of silver nitrate solut
    9·1 answer
  • How many moles of nitrogen are in 1 mole of Al(NO3)3?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!