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
podryga [215]
3 years ago
8

Hi there, I need help producing the aim and hypothesis for the question

Chemistry
1 answer:
svetlana [45]3 years ago
4 0

Answer:

in supernova gold can be turned into lead.

its practical to obtain gold from lead

hope this helps you☺️☺️

You might be interested in
Arenediazoniums can undergo electrophilic aromatic substitutions with a wide variety of activated aromatic compounds to yield ne
mel-nik [20]
B false
I did this last year and it’s false
4 0
3 years ago
What is the one variable that is changed in the experimental group called? the placebo the independent variable the control grou
BlackZzzverrR [31]

Answer:

the independant variable

Explanation:

4 0
3 years ago
Suppose that 0.48 g of water at 25∘C∘C condenses on the surface of a 55-gg block of aluminum that is initially at 25∘C∘C. If the
GarryVolchara [31]

Answer : The final temperature of the metal block is, 25^oC

Explanation :

heat_{absorbed}=heat_{released}

As we know that,  

Q=m\times c\times \Delta T=m\times c\times (T_{final}-T_{initial})

m_1\times c_1\times (T_{final}-T_1)=-[m_2\times c_2\times (T_{final}-T_2)]         .................(1)

where,

q = heat absorbed or released

m_1 = mass of aluminum = 55 g

m_2 = mass of water = 0.48 g

T_{final} = final temperature = ?

T_1 = temperature of aluminum = 25^oC

T_2 = temperature of water = 25^oC

c_1 = specific heat of aluminum = 0.900J/g^oC

c_2 = specific heat of water= 4.184J/g^oC

Now put all the given values in equation (1), we get

55g\times 0.900J/g^oC\times (T_{final}-25)^oC=-[0.48g\times 4.184J/g^oC\times (T_{final}-25)^oC]

T_{final}=25^oC

Thus, the final temperature of the metal block is, 25^oC

6 0
3 years ago
During decomposition of water,10g of oxygen gas was formed.How much hydrogen gas was formed
statuscvo [17]

Answer:

https://www.quora.com/The-following-chemical-reaction-shows-the-decomposition-of-water-to-form-hydrogen-gas-and-oxygen-gas-2H2O-I-produces-2H2-g-O2-g-if-10-0-grams-of-water-reacted-and-you-found-1-11-grams-of-H2-formed-how-many-of-O2

Explanation: i hope ths helps you

8 0
3 years ago
Yucca moths lay eggs in yucca flowers. When the eggs hatch, the larvae eat yucca seeds. The moths help pollinate the flowers. Wh
liberstina [14]
A. Mutualism. This is because both the larvae and the flower are benefited. The larvae is fed, and the flower is pollinated.

Hope this helps!
8 0
3 years ago
Other questions:
  • Determine the total pressure of a gas mixture that contains O2, N2 and He, if the partial pressure of the gases are : P(O2) = 20
    5·1 answer
  • The study of the structure, reaction, and composition of substances is blank​
    5·1 answer
  • What substance is used in a nuclear reactor to absorb heat released from the reactor?
    7·2 answers
  • What occurs when the moon's shadow hits Earth or Earths shadow hits the moon
    9·2 answers
  • How many gallons of propane in a 20-pound tank?
    12·1 answer
  • Question 4 of 10
    8·1 answer
  • Which of the following phase changes is exothermic?
    9·1 answer
  • Y
    15·1 answer
  • Examine the chemical reaction. What coefficient of O2 should be added so the number of atoms of oxygen is conserved on both side
    14·2 answers
  • The primary goal of water-softening ion exchange systems is _____(1 point)
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!