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
OlgaM077 [116]
3 years ago
7

Fireworks that appear green in the sky are filled with a salt compound containing a metal called __________.

Chemistry
1 answer:
eimsori [14]3 years ago
6 0

Answer:

barium makes fireworks green.

You might be interested in
If 4.168 kJ of heat is added to a calorimeter containing 75.40 g of water, the temperature of the water and the calorimeter incr
Alinara [238K]

Answer:

The value of  the heat capacity of the Calorimeter  C_c = 54.4 \frac{J}{c}

Explanation:

Given data

Heat added Q = 4.168 KJ = 4168 J

Mass of water m_w = 75.40 gm

Temperature change = ΔT = 35.82 - 24.58 = 11.24 ° c

From the given condition

Q = m_w C_w ΔT + C_c ΔT

Put all the values in above equation we get

4168 = 75.70 × 4.18 × 11.24 +  C_c × 11.24

611.37 =  C_c × 11.24

C_c = 54.4 \frac{J}{c}

This is the value of  the heat capacity of the Calorimeter.

7 0
3 years ago
A fusion reaction releases energy because the binding energy of the resulting nucleus:______.
KIM [24]

Answer:

a. is released in the process

Explanation:

In fusion reaction the nucleus is unstable so it releases its binding energy resulting in decreasing its mass so it becomes more stable.

7 0
3 years ago
Without consulting Appendix B, arrange each group in order of increasing standard molar entropy (S°). Explain.(c) SF₆(g), SF₄(g)
Andre45 [30]

The increasing order of standard molar entropy (S°) is as follow:

SF₄(g) < SF₆(g) < S₂F₁₀(g)

<h3>What is Entropy? </h3>

Entropy is defined as the randomness of the particle. It depends on temperature and pressure or number of particle per unit volume.

It is directly proportional to the temperature and pressure of the gas.

<h3>What is Standard Molar Entropy? </h3>

The standard molar entropy is defined as the entropy content of the one mole of pure substance at the standard state of temperature and pressure of interest.

The standard molar entropy is also defined as the total amount of entropy which 1 mole of the substance acquire, as it is brought from 0K to standard conditions of temperature and pressure.

The standard molar entropy depends on the molas mass of atom, molecules or compound.

SF₄(g) has lower standard molar entropy. Due to less complexity of this molecules.

While, complexity increases from SF₆(g) to S₂F₁₀(g). Therefore, the standard molar entropy of S₂F₁₀(g) is greater than SF₆(g).

Thus, we concluded that the increasing order of standard molar entropy (S°) is as follow:

SF₄(g) < SF₆(g) < S₂F₁₀(g)

learn more about standard molar entropy:

brainly.com/question/15908262

#SPJ4

7 0
2 years ago
How do you calculate the atomic mass number ?
anastassius [24]

add up the mass of protons and neutrons

3 0
3 years ago
Read 2 more answers
Gimme ur bath water plzzzz​
kari74 [83]

Answer:

plzz can you explain in detail this Q

6 0
3 years ago
Other questions:
  • How many elements are there in the first column of the periodic table?
    10·1 answer
  • Forming a hypothesis is accomplished through___ reasoning
    6·1 answer
  • The sources of errors in the kinetic experiment are:
    10·1 answer
  • The total resistance in this circuit is
    9·1 answer
  • Which best describes the data?
    9·1 answer
  • If you were going to build a system to check the effectiveness of automobile catalytic converters on cars, what substances would
    11·1 answer
  • 5) 3Na2SO4
    12·1 answer
  • Plant cells have a cell wall instead of a cell membrane - true or false​
    15·1 answer
  • 10. Given the reaction:
    13·1 answer
  • Is a group of deer in a field called a community or a population?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!