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d1i1m1o1n [39]
3 years ago
13

List 3 ways how we know plants are alive?

Chemistry
1 answer:
adelina 88 [10]3 years ago
3 0
They use natural resources like sunlight water they need soil water and sunlight to grow the stem should be pliable and firm and will have a green cast on the inside
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Asap Help!!! I just wanted to know if my answer is correct i am not sure if its not please correct me
Elenna [48]

Answer:

Precipitate

Explanation:

A precipitate is a solid formed from a chemical solution

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2 years ago
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Structural formula for 4-nonene and fluorine gas
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I THINK it's <span>1,1-Difluorononane, or </span>C_9H_{18}F_2.<span>
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3 years ago
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An unknown mass of aluminum requires 6290 joules to raise
Alex Ar [27]

Answer:

124.579 g

Explanation:

Amount of heat required to change the temperature of body is given by the equation given below

Q = m* c * ΔT ____________________equation A

where Q is the total heat energy required by the any object

c is the specific heat capacity of the body J/gK

ΔT is the difference of final temperature of the object and initial temperature of the object

______________________________________

Given Q = 6290 joules

c = 0.900 J/gK

To calculate the temperature in kelvin from Celsius

we can use the formula

K = C + 273

initial temperature  = 23.9°C

initial temperature on kelvin scale =  23.9° + 273 = 296.9

Final temperature  = 80°C

initial temperature on kelvin scale =  80° + 273 = 353

ΔT(temperature difference) = 353 - 296.9 = 56.1

___________________________________________

let the mass of of the  aluminum be m g

substituting the value of Q , c, ΔT in equation A we have

Q = m* c * ΔT

=> 6290 = m * 0.900 * 56.1

=> m = 6290/(0.900 * 56.1 )

=> m = 6290/50.49

=> m = 124.579 g

The mass of the  aluminum is 124.579 g

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3 years ago
PLZ HELP 20 POINTS
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In this experiment, the reaction is quenched with aqueous nahco3. what byproducts form when nabh4 reacts with water? which bypro
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NaBH 4 reacts with water and alcohols, with the evolution of hydrogen gas and the formation of the corresponding borate, the reaction being especially fast at low pH. Nevertheless, alcohol, often methanol or ethanol, is generally the solvent of choice for sodium borohydride reductions of ketones and aldehydes.

Methanol poses a greater risk because it is metabolized into a very toxic substance i.e. formic acid and also highly poisonous.

What is Methanol?

Methanol is a promising energy carrier because, as a liquid, it is easier to store than hydrogen and natural gas. Its energy density is, however, lower than methane, per kg.

To know more about methanol go to the given link :

brainly.com/question/495179

5 0
1 year ago
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