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charle [14.2K]
3 years ago
10

Question 5 (1 point)

Chemistry
2 answers:
mart [117]3 years ago
3 0

Answer:

hhhheeelllpppp

Explanation:

i need this answer tooooo

AveGali [126]3 years ago
3 0

Answer: help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! i i also need this answer so please help answer the question please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Explanation:

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A gas of 190 mL at a pressure of 74 atm can be expected to change its pressure when its volume changes to 30.0 mL. Express its n
kozerog [31]

Answer : The new pressure of the gas will be, 468.66 atm

Explanation :

Boyle's Law : This law states that pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}     (At constant temperature and number of moles)

or,

P_1V_1=P_2V_2

where,

P_1 = initial pressure of the gas = 74 atm

P_2 = final pressure of the gas = ?

V_1 = initial volume of the gas = 190 ml

V_2 = final volume of the gas = 30 ml

Now we put all the given values in the above formula, we get the final or new pressure of the gas.

74atm\times 190ml=P_2\times 30ml

P_2=468.66atm

Therefore, the new pressure of the gas will be, 468.66 atm

4 0
3 years ago
Read 2 more answers
What will the cleaning sanitation and storage of food contact surfaces of equipment and utensils help prevent?
sertanlavr [38]

Proper cleaning and sanitizing practices are critical in preventing bacteria that can cause foodborne illness.

Benefits of sanitizing:

Eliminates Pathogens.

Sanitizing Improves Home Odor.

Reduces Respiratory issues.

Decreases Allergy Flare-Ups.

Easy to Use.

Reduces Stress.

Helps the Immune System.

When and how to clean surfaces in your home.

Important to clean and sanitize kitchen premises

Cleaning your kitchen premises and equipment ensures that clean food preparation is carried out in order to improve kitchen efficiency and reduce environmental impacts.

To learn more about cleaning refer: brainly.com/question/25912875

#SPJ4

4 0
2 years ago
5 Facts about Geology
Bingel [31]
1-There are 18 volcanoes in the US with the potential to erupt again, all of them in Alaska, Hawaii and the West Coast states.

2-Rubies and sapphires are actually the same mineral - corundum. The basic chemical formula of corundum is Al2O3, but traces of iron stain the mineral red (ruby) while traces of chromium or titanium stain the mineral blue (sapphire).

3-Rubies, sapphires and emeralds are all more rare than diamonds.

4-Not all diamonds are transparent. They come in a variety of colors (called "fancies"), including yellow, green, blue, orange, brown ("champagne"), purple, grey, black (called carbanado, recently shown to be meteroic), milky white, pink, and red. Red is by far the rarest.

5-Antacids taste like chalk because they ARE chalk, a.k.a. calcium carbonate.


Hope this helps, Give a thanks ! Haha
4 0
2 years ago
There are four hundred participants in the local Thanksgiving 5K race. If 51% of the participants are female, what is the ratio
Paha777 [63]

Answer:

51:49 is the ratio of female participants to male participants.

Explanation:

Percentage of females in the race = 51 %

Percentage of males in the race = 100% - 51 % = 49%

Total participants in race = 400

Number of women participants = 51% of 400=\frac{51}{100}\times 400=204

Number of men participants  = 49% of 400=\frac{49}{100}\times 400=196

Ratio of female participants to male participants :

\frac{204}{196}=\frac{51}{49}=51:49

5 0
3 years ago
Calculate the mass percentage of Na2SO4 in a solution containing 10.9 g Na2SO4 in 482 g water.
boyakko [2]

Answer:

The answer to your question is 2.21 %

Explanation:

Data

mass of Na₂SO₄ = 10.9 g

mass of H₂O       = 482 g

Formula

Percent by mass = \frac{mass of solute}{total mass} x 100

Substitution

Percent by mass = \frac{10.9}{10.9 + 482} x 100

Simplification and result

Percent by mass = \frac{10.9}{492.9} x 100

       Percent by mass = 0.022 x 100

       Percent by mass = 2.21

3 0
3 years ago
Read 2 more answers
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