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Art [367]
2 years ago
6

A beam balance is called a first class lever why?​

Chemistry
1 answer:
Dmitriy789 [7]2 years ago
8 0

Answer:

A beam balance is an example of a first class lever.

Explanation:

A beam balance is an example of a first class lever. In a first class lever, the fulcrum is between the effort (force) and the load. The effort (force) moves over a large distance to move the load a smaller distance.

Other examples of first class lever are pliers, scissors, a crow bar, a claw hammer, a see-saw and a weighing balance etc.

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Calculate the speed of light in water. The speed of light in air is 3.00 x 108 m/s.
xz_007 [3.2K]

Answer:

225,563,910 m/s

Explanation:

speed of light in water = speed of light in the air/refractive index

speed of light in water = 3.00 x 10^8 m/s/1.33

speed of light in water = 225,563,910 m/s

4 0
2 years ago
 El vinagre es ácido acético al 5%, a cuantos gramos de ácido acético equivalen 500 g de vinagre?​
Phantasy [73]

Answer:

no equivale a nada porque

El vinagre suele contener ácido acético en una proporción de entre el 4% y 7%. Mucho más que un aderezo, el vinagre puede ser un eficaz y económico ayudante doméstico. Este popular producto, que recibe su nombre del latín vinum acre, es decir "vino agrio", y es básicamente ácido acético diluido.

Explanation:

espero y te sirva

6 0
2 years ago
Ionic bonds form between which two types of elements?​
Alla [95]

Answer:

Ionic bonds usually occur between metal and nonmetal ions. For example, sodium (Na), a metal, and chloride (Cl), a nonmetal, form an ionic bond to make NaCl.

Explanation:

4 0
2 years ago
Read 2 more answers
What is the ph of a solution that is 0.50 m in propanoic acid and 0.40 m in sodium propanoate. (ka for propanoic acid = 1.3 x 10
max2010maxim [7]
<span>The pH is given by the Henderson - Hasselbalch equation:
              pH = pKa + log([A-]/[HA])
              pH = -log(</span><span>1.3 x 10^-5) + log(0.50/0.40)
              pH = 4.98
The answer to this question is 4.98.
</span>
3 0
3 years ago
Balance the following reaction. As2S3 + 9O2 → 2As2O3 + SO2
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Answer:

2As2S3 + 9O2 = 2As2O3 + 6SO2

Explanation:

8 0
3 years ago
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