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
lesya692 [45]
3 years ago
15

Jeff’s father is installing a do-it-yourself security system at his house. He needs to get a device from his workshop that conve

rts electric energy to sound energy. Which device is Jeff’s father looking for?
Chemistry
1 answer:
lesantik [10]3 years ago
6 0
The answer is Buzzer
You might be interested in
A weak acid, HF, is in solution with dissolved sodium fluoride, NaF. If HCl is added, which ion will react with the extra hydrog
kumpel [21]

Answer:

c. F1-

Explanation:

In this chemical reaction the expression is:

HF  +  NaF   →  NaHF2

The ion that always keep the negative charge is the fluorine with a -1, if in this mixture there is more positive ions (H1+) the negative ion (F1-) will join with them.

Remember that also the Cl1- will be free, but the fluorine is more reactive than the fluorine.

5 0
3 years ago
Which atomic property is different in each isotope of an element?
slava [35]
Mass number...use da textbook bra
6 0
3 years ago
Consider the unbalanced chemical equation HBr + B = BBr3 + H2. When
Vitek1552 [10]

Answer:

B and BBr3

Explanation:

1) 3HBr + B = BBr3 + H2 (double all equation because H2)

2) 6HBr + <em>2B </em>= <em>2BBr3</em> + 3H2

4 0
3 years ago
600.0 mL of air is at 20.0 c what is the volume at 60.0
pogonyaev

682mL

Explanation:

Given parameters:

Initial volume of air = 600mL

Initial temperature = 20°C

Final temperature = 60°C

Unknown:

Final volume = ?

Solution:

To solve this problem, we apply Charles's law';

Charles's law states that "at constant pressure, the volume of a given mass of gas is directly proportional to its temperature. "

Mathematically;

   \frac{V_{1} }{T_{1} }  = \frac{V_{2} }{T_{2} }

V₁ is the initial volume  of air

T₁ is the initial temperature  of air

V₂ is the final volume  of air

T₂ is the final temperature of air

To proceed in solving this problem, we need to convert the given temperature to Kelvin;

T K = 273 + T°C

T₁  = 273 + 20 = 293K

T₂ = 273 + 60 = 333K

now input the parameters;

V_{2}  = \frac{V_{1} }{T_{1} }  x T_{2}  = \frac{600}{293 }  x 333

 V₂ = 682mL

learn more:

Gas laws brainly.com/question/2438000

#learnwithBrainly

 

8 0
3 years ago
Can you please help me it’s not a hard question
aliya0001 [1]
The answer for acceleration is m/s^2
5 0
3 years ago
Other questions:
  • The modern periodic table is arranged by increasing
    7·1 answer
  • Which formula equation represents the burning of sulfur to produce sulfur dioxide?
    5·2 answers
  • Why should you never mix unknown chemicals?
    12·1 answer
  • What happens in reactions that take place under ideal conditions
    15·1 answer
  • The jet stream and ocean currents most commonly influence which of the following?
    15·1 answer
  • As the voltage across a resistor is increased, what happens to the resistance of the resistor?
    13·2 answers
  • How much heat is needed warm 65.34 g of water from 18.43 to 21.75
    5·1 answer
  • Why isn't a largest predator just at the top of a food web?
    15·1 answer
  • Methane gas is collected over water at 25 C and an atmospheric pressure of 775 mmHg. What is the dry pressure of the gas at this
    13·1 answer
  • How are elements arranged on the periodic table?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!