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vovangra [49]
3 years ago
15

Help please i beg someone answer and explain

Chemistry
1 answer:
Novosadov [1.4K]3 years ago
3 0

Answer:

Q,N,1) lithium + hydrochloric -> lithium chloride + Hydrogen.

  1. word equation ( 2li + 2HCl -> 2liCl + H2)
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kogti [31]

Answer:

powerthrone lol

Explanation:

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3 0
3 years ago
Nonferrous alloys do not contain<br> a. copper.<br> b. brass.<br> c. gold.<br> d. iron.
marin [14]
Nonferrous alloys do not contain iron as the name suggests. Ferrous is the latin word for iron. These alloys use precious metals such as gold, silver, platinum and other metals like copper, aluminum, lead, zinc and even alloys like brass. Answer is D.
6 0
3 years ago
What is the pressure of a sample of gas at a volume of .335 L if it occupies 1700 mL at
Alchen [17]

Answer:

4,313.43 mmHg is the pressure of a sample of gas at a volume of .335 L if it occupies 1700 mL at  850 mm Hg

Explanation:

Boyle's law says:

"The volume occupied by a given gas mass at constant temperature is inversely proportional to the pressure." This means that if the quantity of gas and the temperature remain constant, the product of the pressure for the volume always has the same value.

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

o P * V = k

If you have a certain volume of gas V1 that is at a pressure P1 at the beginning of the experiment and you vary the volume of gas to a new value V2, then the pressure will change to P2, it will be true:

P1 * V1 = P2 * V2

In this case:

  • V1=0.335 L
  • P1= ?
  • V2= 1700 mL= 1.7 L (Being 1 L=1000 mL)
  • P2= 850 mmHg

Replacing:

P1*0.335 L=850 mmHg*1.7 L

Solving:

P1=\frac{850 mmHg*1.7 L}{0.335 L}

<u><em>P1=4,313.43 mmHg</em></u>

<u><em>4,313.43 mmHg is the pressure of a sample of gas at a volume of .335 L if it occupies 1700 mL at  850 mm Hg</em></u>

5 0
3 years ago
1.
monitta

Answer:

Answer : (1) :-

Volume of water filled in the pycnometer is given as = 9.9872 mL.

Mass of pycnometer when filled with water = 23.1148 g.

Mass of empty pycnometer = 13.1455 g.

So, mass of water = (23.1148 - 13.1455) g. = 9.9693 g.

We know that,

<em>    Density = Mass / Volume = (9.9693 g.) / (9.9872 mL) = </em>0.998 g/mL.

<u>It is observed that the density of water is evaluated to be 0.998 g/mL. We know that, at 4℃ the density of water becomes maximum i.e. 1 g/mL. On the other hand the temperature at which the density of water is 0.998 g/mL is 0℃. Therefore, it can be concluded that the experiment was performed at a temperature of 0℃.</u>

<u />

3 0
3 years ago
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The main driving force for the filtering process, or outward pressure is the blood pressure as it enters the glomerulus.
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3 years ago
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