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
blsea [12.9K]
2 years ago
9

Which best describes the law

Chemistry
1 answer:
Alja [10]2 years ago
7 0

Answer:

The mass of the reactants and products is

equal and is not dependent on the physical state of the

substances.

You might be interested in
8. Which type of element requires the least amount of energy to remove an electron?​
pychu [463]

Answer:

nonmetals

Explanation:

4 0
2 years ago
The substances below are listed by increasing specific heat capacity value. Starting at 30 Celsius, they absorb 100 kJ of therma
Georgia [21]

Answer:

Silver.

Explanation:

To obtain the right answer to question, let us calculate the change in temperature for each substance assuming they all have the same mass as 100g.

This is illustrated below:

1. For Siver:

Mass (M) = 100g

Specific heat capacity (C) = 0.239J/g°C

Heat (Q) = 100 kJ = 100000J

Change in temperature (ΔT)

Q = MCΔT

ΔT = Q/MC

ΔT = 100000/(100 x 0.239)

ΔT = 4184°C

2. For Aluminium:

Mass (M) = 100g

Specific heat capacity (C) = 0.921J/g°C

Heat (Q) = 100 kJ = 100000J

Change in temperature (ΔT)

Q = MCΔT

ΔT = Q/MC

ΔT = 100000/(100 x 0.921)

ΔT = 1086°C

3. For Lithium:

Mass (M) = 100g

Specific heat capacity (C) = 3.56J/g°C

Heat (Q) = 100 kJ = 100000J

Change in temperature (ΔT)

Q = MCΔT

ΔT = Q/MC

ΔT = 100000/(100 x 3.56 )

ΔT = 281°C

4. For water:

Mass (M) = 100g

Specific heat capacity (C) = 4.184J/g°C

Heat (Q) = 100 kJ = 100000J

Change in temperature (ΔT)

Q = MCΔT

ΔT = Q/MC

ΔT = 100000/(100 x 4.184)

ΔT = 239°C

Summary

Temperature change of each substance is given below

1. Silver => 4184°C

2. Aluminum => 1086°C

3. Lithium => 281°C

4. Water => 239°C

From the calculations made above, Silver has the highest rise in temperature.

4 0
3 years ago
The class of organic compound below contains a carbonyl group as a part of its structure?
kolbaska11 [484]

Aldehydes and Ketones. Aldehydes and ketones are classes of organic compounds that contain a carbonyl (C=O) group.

that's the correct answer

can I get brainilest

5 0
3 years ago
What is the correct symbol of an ion containing 17 protons,20 neutrons and 18 electrons
Nataliya [291]

Answer:

The symbol of the ion is A^-

Explanation:

Let A be the symbol of the element.

Proton = 17

Electron = 18

Neutron = 20

Since the element has more electrons than protons, it means it has gain electrons.

From the question given,

The difference between the electron and proton = 18 — 17 = 1

So, the element has gain 1 electron.

Therefore the symbol of the ion is A^-

3 0
3 years ago
Which of the following do you pracrice at home​
S_A_V [24]
You didn’t post the photo or full question
8 0
2 years ago
Other questions:
  • How to prepare 250.00 ml of approximately 1.0 m hcl solution from the 2.5 m hcl solutio?
    9·2 answers
  • What is the empirical formula for C 57.66
    12·1 answer
  • PLEASE HELP! 15 POINTS!!!!!
    14·1 answer
  • Write the ΔH system for each of the following changes in physical state
    6·1 answer
  • A student is studying asbestos, a mineral that causes cancer in humans. One of the components of asbestos is silicon, a somewhat
    13·1 answer
  • Which of the following could you do to increase the strength of an electromagnet?
    13·1 answer
  • Which one of the following is an example of a balanced chemical reaction?
    13·1 answer
  • Is baking soda a element, compound or a mixture?
    12·1 answer
  • The difference between Physical/Chemical properties and Physical/Chemical changes
    7·1 answer
  • Organic compounds and their uses​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!