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Aleonysh [2.5K]
3 years ago
11

Why do giant sequoia trees grow

Chemistry
1 answer:
ser-zykov [4K]3 years ago
3 0
To allow their cones to open and release more seeds.
You might be interested in
A 80.0 g piece of metal at 88.0°C is placed in 125 g of water at 20.0°C contained in a calorimeter. The metal and water come to
grandymaker [24]

Answer:

The specific heat of the metal is 0.485 J/g°C

Explanation:

<u>Step 1:</u> Data given

Mass of the piece of metal = 80.0 grams

Mass of the water = 125 grams

Initial temperature of the metal = 88.0 °C

Initial temperature of water =20.0 °C

Final temperature = 24.7 °C

pecific heat of water is 4.18 J/g*°C

<u>Step 2:</u> Calculate specific heat of the metal

Qgained = -Qlost

Q =m*c*ΔT

Qwater = - Qmetal

m(water)*c(water)*ΔT(water) = -m(metal)*c(metal)*ΔT(metal)

with mass of water = 125 grams

with c( water) = 4.18 J/g°C

with ΔT(water) = T2-T1 = 24.7 - 20 = 4.7°C

with mass of metal = 80.0 grams

with c(metal) = TO BE DETERMINED

with ΔT(metal) = 24.7 - 88.0 = -63.3 °C

125*4.18*4.7 = -80 * C(metal) * -63.3

2455.75 = -80 * C(metal) * -63.3

C(metal) = 2455.75 / (-80*-63.3)

C(metal) = 0.485 J/g°C

The specific heat of the metal is 0.485 J/g°C

3 0
4 years ago
What role does the oxidizing agent play in a redox reaction?
mr Goodwill [35]

Answer is "<span>the oxidizing agent receives electrons from the reducing agent</span><span>".

There are two types of reactants in redox reactions. One is oxidizing agent and other is reducing agent.

Oxidizing agent is a substance which helps to oxidize other substance by gaining electrons. This is also called as oxidizer. Due to the gaining electrons, oxidizing agents tend to be reduced.

Reducing agent or reducer helps to reduce other substance while loosening electrons. Hence, reducing agents tend to be oxidized.</span>

5 0
4 years ago
What is the best description of a molecule?
finlep [7]

Answer:

Three or more atoms bonded together

Explanation:

A molecule is the smallest particle in a chemical element or compound that has the chemical properties of that element or compound. Molecules are made up of atoms that are held together by chemical bonds

7 0
3 years ago
Synfuels are made from energy sources that are more plentiful than _____.
zhuklara [117]

The answer is: oil.

Synfuel (synthetic fuel) is a liquid fuel, rarely gaseous fuel, made from syngas.

Syngas is a mixture of carbon monoxide (CO) and hydrogen (H₂).

Syngas goes to additional conversion process to become liquid fuel.

Some methods for manufacturing synthetic fuels are methanol (CH₃OH) to gasoline conversion and direct coal liquefaction.


5 0
3 years ago
The Gateway Arch in St. Louis, MO is approximately 630 ft tall. How many U.S. dimes would be in a stack of the same
miskamm [114]

Answer:

142240

Explanation:

We are told in the question:

Height of Gateway Arch in St. Louis, MO = 630ft

We are asked, how many U.S. dimes would be in a stack of the same

height when 1 dime is 1.35 mm thick.

Step 1

Convert height in ft to mm

1 ft = 304.8 mm

630ft =

Cross Multiply

630ft × 304.8mm/1ft

= 192024 mm.

Step 2

To find how many US dimes would be in a stack of the same height

= Total thickness/ Thickness of 1 US dime

= 192024 mm/1.35mm

= 142240

Therefore, the number of dimes that would be in a stack of the same

height is 142240

6 0
3 years ago
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