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
Which element below is the most reactive? Hydrogen chlorine neon oxygen
trapecia [35]

Answer:

Chlorine

Explanation:

Chlorine has an atomic number of 17 and a configuration of 2, 8, 7. In the outermost shell, it has 7 seven electrons which means that it needs just one more electron to attain an octet configuration in that shell. Therefore it's can react quickly with any nearby nucleophile.

5 0
3 years ago
Read 2 more answers
Which of the following is true in regard to ions? A. A cation will hold a positive charge if it gains one or more electrons. B.
tigry1 [53]

Answer:

B. An ionized atom has a number of protons that is unequal to the number of electrons.

Explanation:

For a neutral atom , the number of proton and electron is equal. An ionized atom has either loss or gain electron, thereby making the number of proton and electron unequal. The answer B is true because an ionized atom has either loss or gain electron to make the number of electron and proton unequal.

Option A is incorrect because a cations holds a positive charge when it loss one or more electron not when it gains one or more electron(s). Anions possess negative charge for gaining electron(s).

Option C is not true because ions can also carry negative charges and they are called anions.

Option D is false because losing one or more electron will turn an atom to a cations.

7 0
3 years ago
For most substances, the distance between the particles is smallest when the substance
olchik [2.2K]
Is a solid? has strong intermolecular forces? 
3 0
3 years ago
Which of these is a base ?<br><br> a.vinegar <br> b.NaOH <br> c.HNO3<br> d.HCI
sergey [27]

Answer:

B. NaOH

Explanation:

6 0
3 years ago
Read 2 more answers
using the water cycle diagram, match the number with the following; condensation runoff [precipitation and evaporation. once you
Oksanka [162]

Answer:

1. Evaporation

2. Condensation

3. Precipitation

4. Runoff

Explanation:

The water cycle shows how water moves on the earth as it passes through different phases.

Water on land is stored in oceans, rivers and other water bodies. This water coupled with those in plants and animals are turned into vapor through EVAPORATION. Evaporation facilitates the movement of water on the surface into the atmosphere.

In the atmosphere, the vapor condenses on dust particles found up there. The vapors forms a nuclei around the dust particles and water condenses at the saturated vapor pressure. This forms cloud.

As the water collects more and more, gravity forces the water to fall in form of PRECIPITATION. The precipitation can be in form of snow or rainfall.

When precipitation occurs, they move on the surface as SURFACE RUNOFFS. Some of the runoff goes back into oceans and rivers. Others infiltrates into the ground and collects in the ground water pool under the subsurface. Subsurface water can also get into into other water bodies when the water table coincides with the steam level.

The water in these bodies can then go into the cycle again. The sun is the source of energy for this process.

4 0
3 years ago
Other questions:
  • In synthesis reactions, there are always more _____________ than ________________.
    12·1 answer
  • What is the temperature of 0.55 mol of gas at a pressure of 1.5 atm and a volume of 12.6 L ?
    9·1 answer
  • A solution has a pH of 2.4. What happens to the solution if the hydronium ion concentration is increased?
    10·2 answers
  • Will the calculated Molarity of NaOH be too high or too low or unaffected if the following happen: when you answer the question,
    12·1 answer
  • How many oxygen molecules are in 22.4 liters of oxygen gas at 273 K and 101.3 kPa?
    7·1 answer
  • after a chemistry student made a AgNO3(small 3 at bottom) solution., she wanted to determine the molar concentration of it. if 2
    8·1 answer
  • Determine how many liters of hydrogen adjusted to STP there are in a 50.0 liter steel cylinder if the pressure inside is 100.0 a
    5·1 answer
  • Record the volume of the liquid in the graduated cylinder. The volume of the liquid is
    12·1 answer
  • How many pi bonds are in the oxalate ion (C2O42-)?
    9·1 answer
  • A student prepares a solution of Potassium Nitrate (KNO3) containing 95g at 40 C. This solution is -
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!