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lora16 [44]
2 years ago
8

2. Which type of glassware is used for general mixing, measuring and

Chemistry
1 answer:
ella [17]2 years ago
5 0

Answer:

D

Explanation:

A beaker can be used for boiling coz it can withstand high temperatures.

It can be used for measuring the volume of a solid indirectly by measuring the displacement of a liquid.

It can as well be used for mixing coz it flat bottomed

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The gas in a 250. mL piston experiences a change in pressure from 1.00 atm to 4.45 atm. What is the new volume (in mL) assuming
Tju [1.3M]

Answer:

56.2 mL

Explanation:

Given data

  • Initial volume (V₁): 250 mL
  • Initial pressure (P₁): 1.00 atm
  • Final volume (V₂): ?
  • Final pressure (P₂): 4.45 atm

Assuming the gas has an ideal behavior, we can find the final volume using Boyle's law.

P₁ × V₁ = P₂ × V₂

V₂ = P₁ × V₁/P₂

V₂ = 1.00 atm × 250 mL/ 4.45 atm

V₂ = 56.2 mL

6 0
3 years ago
A skier is skiing down a slope on the mountain. Is the mechanical energy conserved? Why or why not?
Arada [10]
The reality is that the mechanical energy is supposed to dissapear in this case. The mechanical energy is replaced with the knietic energy. <span>If starting from rest, the mechanical energy of the skier is entirely in the form of potential energy. As the skier begins the descent down the hill, potential energy is lost and kinetic energy is gained.</span>
4 0
2 years ago
Read 2 more answers
Sulfuric acid (h2so4) is spilled on a laboratory bench. which chemical would be useful for neutralizing the acid
marysya [2.9K]
Sulphuric acid (H2SO2) is a dibasic acid. It generated H+ ions when dissolved in water. In order to neutralize an acid, a base containing hydroxy ion (OH-) will be required. 

NaOH, Ca(OH)2, KOH, etc. can be used to neutralize H2SO4.

If NaOH is used as a base, following reaction is initiated.

2NaOH     +      H2SO4      →     Na2SO4     +     H2O     
 (base)                (acid)                  (salt)
8 0
3 years ago
Terbium-147 undergoes positron emission to become a stable atom. What is that stable atom?
ivanzaharov [21]

We have to get the stable atom formed after positron emission from Terbium-147.

The stable atom is (D) ₆₄Gd¹⁴⁷.

Positron is radioactive decay. Positron is a type of beta particle β⁺.

Positron emission decreases proton number relative to neutron number, positron decay results in nuclear transmutation, changing an atom of one chemical element with an atomic number that is less by one.

Terbium on positron emission produces Gadolinium with one atomic number less than Terbium. So, the positron emission reaction is as shown below:

Tb¹⁴⁷→ ₆₄Gd¹⁴⁷ + ₁e⁰

7 0
2 years ago
Differentiate between Fundamental unit and derived unit​
Serga [27]

Answer:

Fundamental Units are the units which are independent of any other unit.

They do not depend on any other physical quantity for their measurements .

Derived Units are derived from Fundamental Units.

They are are products and/or ratios of the fundamental quantities that exist in a system of units.  

Explanation:

8 0
3 years ago
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