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
gizmo_the_mogwai [7]
3 years ago
10

1. Energy appears in two forms. What are they?

Chemistry
1 answer:
noname [10]3 years ago
5 0
Number 1 is C number 2 is B and number 3 is also B
You might be interested in
2Na3N3 -&gt; 2Na + 3N2<br><br> if 0.58 mol if NaN3 reacts, what mass of nitrogen would result
Ronch [10]

Answer:

                      Mass = 24.36 g of N₂

Explanation:

                   The balance chemical equation for the decomposition of NaNO₃ is as follow;

                                           2 NaN₃ → 2 Na + 3 N₂

Step 1: Find moles of N₂ as;

According to equation,

                 2 moles of NaNO₃ produces  =  3 moles of N₂

So,

              0.58 moles of NaNO₃ will produce  =  X moles of N₂

Solving for X,

                      X = 3 mol × 0.58 mol / 2 mol

                      X = 0.87 mol of N₂

Step 2: Calculate mass of N₂ as,

Mass = Moles × M.Mass

Mass = 0.87 mol × 28.01 g/mol

Mass = 24.36 g of N₂

8 0
3 years ago
Which of the following CANNOT be determined by looking at the spectra of a star? *
Rzqust [24]

Answer:

A:temperature

Explanation:

The temperature cannot be determined by looking at the spectra of the star due to lack of the equipment for its measurement. <em>On the other-hand, the remaining statements like the distance from earth, movement towards or away from earth can be determined.</em>

8 0
3 years ago
A cylinder of oxygen gas has a pressure of 6.00 atm at 25.0
Readme [11.4K]
P1/T1=P2/T2 Gal Lussac's Law
25 C= 298K (just add 273)
0 C= 273 k

6.00atm/298=P2/273

P2=5.50 atm
4 0
2 years ago
What is a wet celled battery composed of? Give an example of a wet celled battery.
svet-max [94.6K]

Answer:

A wet-cell battery is the original type of rechargeable battery.

An example of a wet cell battery is a lead-acid battery.

Explanation:

3 0
2 years ago
Read 2 more answers
F
kobusy [5.1K]

Answer:

From the periodic table, Atomic number of fluorine is 7 and atomic mass is 19

8 0
2 years ago
Other questions:
  • (a) calculate the molarity of a solution made by dissolving 0.0815 mol na2so4 in enough water to form exactly 550. ml of solutio
    6·1 answer
  • Does NH3 dissolve in acetone?
    12·1 answer
  • A 15.00-ml sample of a naoh solution of unknown concentration requires 17.88 ml of a 0.1053 m h2so4 solution to reach the equiva
    13·2 answers
  • Particle 1 has a velocity v1 = 2 m/s and a mass m1 = 2 kg . this particle collides with particle 2 of mass m2 = 6 kg , which is
    13·1 answer
  • The boiling points of some group 7A hydrides are tabulated below.
    14·1 answer
  • Jacob takes 7 classes, each 50.00 minutes long every day for the 5 day school week. How many hours per week does he spend in cla
    15·1 answer
  • What is the kinetic energy of a 1.0-kg billiard ball that moves at 5.0 m/s?
    10·1 answer
  • A __________ is the basic unit of structure and function in living organisms.
    11·2 answers
  • Which variables does equilibrium depend on?
    9·1 answer
  • In addition to surface tension what's responsible for driving ocean waves
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!