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Kamila [148]
2 years ago
15

Q1 A metal object has a mass of 8.37 g. When it was placed in a graduated cylinder containing 20.0 mL of water, the water level

rose to 23.1 mL. What is the density and identity of the metal? (see Table 3.1).
Q2 What is the mass of a solution that has a density of 0.775 g/mL and a volume of 50.0 mL?
Q3 What is the volume of a solution that has a specific gravity of 1.2 and a mass of 185 g?
Chemistry
1 answer:
Reika [66]2 years ago
6 0

Explanation:

<h2>I Forgot it please send a pic and tell me now Cause im lazy to Read ok</h2>
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Describe two carbon sequestering methods that could reduce the impact of deforestation
aleksandr82 [10.1K]

The two carbon-sequestering methods that could reduce the impact of deforestation are afforestation and agriculture.

Carbon sequestering

  • It is a process of capturing and storing the carbon dioxide gas of an atmosphere on a large scale.
  • This is done to prevent adverse global climatic conditions
  • The methods which can reduce the impact of deforestation are afforestation, wetlands, fertilizing ocean surfaces, agriculture, etc.

Afforestation

  • Planting trees in the nonforest region or planting trees in the deforested region.
  • By this more and more carbon dioxide gas will be absorbed by the tress from the atmosphere via photosynthesis and that will get involve in the carbon cycle.
  • Help in re-establishing an ecosystem in the region and prevent soil erosion.

Agriculture

  • Growing and planting crops which maintain carbon level of the soil, And along with absorbs carbon dioxide gas from the atmosphere.
  • Will increase the concentration of oxygen gas in the atmosphere leading to prevent air pollution.

Learn more about carbon sequestering here:

brainly.com/question/18392835?referrer=searchResults

6 0
2 years ago
Which of the following is not an indicator of a chemical reaction?
Cloud [144]

Answer:

Hello There!!

Explanation:

C. a color change

Colour is not an indicator. Sorry if I'm wrong.

hope this helps,have a great day!!

~Pinky~

3 0
3 years ago
A rigid cylinder with a movable piston contains a sample of hydrogen gas. At 330. K, this sample has a pressure of 150. kPa and
Marta_Voda [28]

Answer:

V₂ = 4.34 L

Explanation:

According to general gas equation:

P₁V₁/T₁ = P₂V₂/T₂

Given data:

Initial volume = 3.50 L

Initial pressure = 150 Kpa (150/101.325 = 1.5 atm)

Initial temperature = 330 K

Final temperature = 273 K

Final volume = ?

Final pressure = 1 atm

Formula:  

P₁V₁/T₁ = P₂V₂/T₂  

P₁ = Initial pressure

V₁ = Initial volume

T₁ = Initial temperature

P₂ = Final pressure

V₂ = Final volume

T₂ = Final temperature

Solution:

V₂ = P₁V₁ T₂/ T₁ P₂

V₂ =  1.5 atm ×  3.50 L × 273 K / 330 K × 1 atm

V₂ = 1433.3 atm .L. K / 330 k.atm

V₂ = 4.34 L

4 0
3 years ago
Referring to the article, which of the following is associated with the use of genetic engineering to clone farm
malfutka [58]

D. All of the given statements are true in context of animal cloning.

Explanation:

Cloning is the method in which a similar genetic copy is produced.

Animal cloning is a complex process in which an organism of similar type is produced with same DNA to each other.

Mostly successfully cloned animals in live are cattle,sheep,goats...

Scientists have also cloned rats,mice,rabbits,horses...

This animal cloning is used for farming by the farmers which gives acceleration in their crop production.

Animal cloning have showed some adverse affects in sheep, and other mammal animals regarding issues in their organs like liver,heart,brain etc.

The success rate is very low like 10% in animal cloning due to many reasons such as surviving from birth to the cloned animals.

8 0
3 years ago
Read 2 more answers
I NEED HELP PLEASE, THANKS! :)
TEA [102]

Answer:

K=\frac{[CaO][CH_{4}][H_{2}O ]^{2}  }{[CaCO_{2}][H_{2}]^4  }

Explanation:

The equilibrium expression is the K value equal to the product of the concentrations of the products over the product of the concentrations of the reactants.  If there is a coefficient in front of the compound, raise the molecule to that power.

Since K is big, more product is expected.  This is because of mathematic principles.  A large numerator with a small denominator will produce a large number.

3 0
3 years ago
Read 2 more answers
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