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aliya0001 [1]
3 years ago
10

1S Called A simple machine that has a disc with a grooved rim to wind up asing is called When a fixed pulley and a movable nugnk

cmm vnghldley​
Chemistry
2 answers:
EastWind [94]3 years ago
7 0

Answer:

the question isn't enlisted here...

maxonik [38]3 years ago
3 0

what is the question??

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Heterogeneous mixture containing a liquid in which visible particles settle
suter [353]
A suspension is the answer
7 0
4 years ago
What cell structure reminds me/you of hand sanitizer A. golgi apparatus B. endoplasmic reticulum C. cytoplasm
Zanzabum

Answer:

I think that it might be cytoplasm

Explanation:

I got this from google

Cytoplasm is a thick solution that fills each cell and is enclosed by the cell membrane. It is mainly composed of water, salts, and proteins. 

4 0
3 years ago
How many moles of gas occupy 98 l at a pressure of 2.8 atmospheres and a temperature of 292 k?
Furkat [3]
From the ideal gas equation, we know that PV = nRT
where, P = pressure, V = volume occupied, n = number of moles of gas, R = universal gas constant=0.082L atm mol-1 K-1 and T = temperature.
Given: P = 2.8 atm, V = 98 l and T = 292 k.
Therefore n =\frac{PV}{RT} = \frac{2.8 X 98}{0.082 X 292} = 11.46
6 0
3 years ago
Explain why copper 2 oxide is a base although it does not turn litmus paper to blue​
In-s [12.5K]

Answer:

See explanation

Explanation:

Copper II oxide is a base but not an alkali. An alkali is a soluble base. Since Copper II oxide is not soluble in water then it is not an alkali.

Let us recall that the change of colour of litmus with an alkali requires the presence of water. In the absence of water, solid Copper II oxide does not turn red litmus paper blue.

The ability to turn red litmus paper blue is commonly observed with alkalis and Copper II oxide is not an alkali.

Also recall that since Copper II oxide is not soluble, hydroxide ions are absent hence Copper II oxide does not turn red litmus paper blue.

3 0
3 years ago
Which of the following transitions represent the emission of a photon with the largest energy?
s2008m [1.1K]

Answer:

n=6 to n=3 (B)

Explanation:

Energy of an electron present in the n^{th} orbit is directly proportional to n^{2} .Hence a transistion from one orbit to another orbit emits an energy proportional to the difference of their squares of the orbits. that is if an electron travels from orbit n1 to orbit n2 then it emits an energy corresponding to n_{1} ^{2} -n_{2} ^{2}.So in the above question the highest energy emission occurs when an electron moves from n=6 to n=3.(Highest difference of energy levels).

6 0
4 years ago
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