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Eddi Din [679]
3 years ago
6

A group of students are studying how different stimuli affect the growth of plants. They place a growth lamp next to a plant tha

t has been placed in a dark room. To ensure the survival of the plant they make sure to provide an adequate amount of nutrients and water. Which way is the plant most likely to respond?
Chemistry
1 answer:
julsineya [31]3 years ago
4 0

Answer:

grow

Explanation:

it needs light

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Calculate the pressure in atm, if 0.00825 moles occupies 174 mL at -15 celcius.
Vlad [161]
Answer is: <span>the pressure is 1.12 atm.
</span>n(O₂) = 0.00825 mol, amount of substance.
V = 174 mL ÷ 1000 mL/L = 0.174 L, volume of gas.

<span> T = 15°C = 288.15 K; temperature.
R = 0.08206 L·atm/mol·K, </span>universal gas constant.<span>
Ideal gas law: p·V = n·R·T.
</span>p = n·R·T / V.
p = 0.00825<span> mol · 0.08206 L·atm/mol·K · 288.15 K / 0.174 L.
p = 1.12 atm.</span>


6 0
3 years ago
A sample of metal has a mass of 5. 2 g and absorbs 20. 0 j of energy as it is heated from 30. 0°c to 40. 0°c. What is the identi
kiruha [24]

The identity of the metal is copper.

<h3>What is specific heat?</h3>

The amount of energy needed to raise the temperature of one gram of a substance by one degree Celsius.

Using the formula of specific heat

H = mcdT

Where, H = Heat absorbed

m = mass of the metal

c = specific heat capacity of the metal

dT = temperature change

Putting the values in the equation

20 J = 0.0052 Kg × c × ( 40.0°C - 30.0°C)

c = 20 J/0.0052 Kg × ( 40.0°C - 30.0°C)

c = 385 JKg-1°C-1

Thus, the metal is copper.

Learn more about specific heat

brainly.com/question/11297584

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6 0
2 years ago
How many liters are in 20 grams of hydrogen gas?
motikmotik

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Volume of 20 g of hydrogen at normal temperature and pressure (NTP) = 240.55 ml.

\huge\sf\underline{\underline{\red{❥︎ Thanks}}}

3 0
3 years ago
Methane is the chemical that is most abundant in natural gas.<br> a. True<br> b. False
aliya0001 [1]
<span>a. True. Methane is the chemical that is most abundant in natural gas. </span>

3 0
4 years ago
The uranium used for nuclear fuel exists in nature in several minerals. Calculate how many moles of uranium are in 8.00 moles of
bixtya [17]
For calculating the number of moles of uranium, we can count how many atoms of uranium exist in 1 molecule of the given, and multiply this by the given 8.00 moles.
Carnotite contains (UO2)2, meaning that it has 2 U atoms. Multiplying by 8 gives 16 moles of uranium.
Uranophane contains U2, meaning it has 2 U atoms. Multiplying by 8 gives 16 moles of uranium.
Autunite contains (UO2)2, meaning it has 2 U atoms. Multiplying by 8 also gives 16 moles of uranium.
Therefore, in 8 moles of all 3 compounds given, there are 16 moles of uranium.
8 0
4 years ago
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