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
dimaraw [331]
3 years ago
14

5. 54 J of heat is required to raise the temperature of a 2.47g unknown substance from 17.10C to 46.70C. a) Calculate the specif

ic heat of the substance b) What is the substance?
Chemistry
1 answer:
musickatia [10]3 years ago
5 0
<h3>upemnavsi wiwnownivv</h3>
You might be interested in
A student is determining the density of an unknown metal with a mass of 32.56 g. The student partially fills a graduated cylinde
xenn [34]

Answer:

The metal is Tin (Sn)

Explanation:

The following data were obtained from the question:

Mass of metal = 32.56 g

Volume of water = 14.78 mL

Volume of water + metal = 20.44 mL

Next, we shall determine the volume of the metal. This is illustrated below:

Volume of water = 14.78 mL

Volume of water + metal = 20.44 mL

Volume of metal =..?

Volume of metal = (Volume of water + metal) – (Volume of water )

Volume of metal = 20.44 – 14.78

Volume of metal = 5.66mL

Next, we shall determine the density of the metal.

Density of a substance is defined as the mass of the substance per unit volume of the substance. Mathematically, the density of a substance is expressed as:

Density = Mass / volume

With the above formula, we can obtain the density of the metal as follow:

Mass of metal = 32.56 g

Volume of metal = 5.66mL

Density =.?

Density = Mass /volume

Density = 32.56g/5.66mL

Density of the metal = 5.75g/mL

Comparing the density of the metal with standard density of elements, the metal is Tin (Sn)

4 0
3 years ago
When is it necessary for a scientists to do research?
MAXImum [283]
I would say A and D. A is right for sure, as for D, I'm not so sure. Hope this helps!
5 0
3 years ago
Read 2 more answers
How many electrons will a metal generally have in its outer energy level?
Zarrin [17]

Answer:

Metals have one or two electrons in their outermost shell

C. 1-2

Explanation:

  • Metals have low ionisation energy because they easily looses the outermost electrons
  • They have only one- two electrons in the outer most shell.
  • They loose these electron to form charged species called cation.

4 0
3 years ago
How do I know the point which a solid will turn to a liquid?
oee [108]

There is a special temperature for every substance called the melting point. When a solid reaches the temperature of its melting point, it can become a liquid.  

4 0
3 years ago
Read 2 more answers
How is temperature related to the physical change of a substance ?
tekilochka [14]
Determining on the temperature, ice could melt, water could freeze or evaporate. Just an example.
4 0
3 years ago
Read 2 more answers
Other questions:
  • How many moles of MgCl2 are there in 319 g of the compound?
    5·1 answer
  • If the theoretical yield of RX is 56.0 g , what is it’s percent yield ?b
    10·2 answers
  • Which substance is the oxidizing agent in this reaction? 2CuO+C→2Cu+CO2 Express your answer as a chemical formula.
    6·1 answer
  • (1.000) How many moles can be found in 83.80 grams of krypton?
    11·1 answer
  • P l e a s e help me omg I'm so confused-I'll give 40 points, I only have 45-
    11·1 answer
  • Hanif thought that more heat energy has been given out in his reaction and noor thought that both reactions gave out same amount
    7·1 answer
  • 10. How many moles of Ne are in a 0.50L tube at 200kPa and 50 °C? 11,60<br>​
    10·1 answer
  • Each graph below represents a different type of electromagnetic wave. Which graph most likely illustrates radio waves?
    5·1 answer
  • 1. Mixing is a physical change.<br> True or false
    6·2 answers
  • Use the periodic table and example bond table to answer the question.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!