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2 years ago

Heat from a fire is an example of? a Radiation b Conduction c Convection

Chemistry

2 answers:

nikdorinn [45]2 years ago

7 0

The answer should be A because radiation refers to the emission of energy in rays or waves

Nat2105 [25]2 years ago

4 0

I think the answer is A bit I could be wrong

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Mr. Smith wanted to see if the color of light shined on a plant had an effect on the number of leaves it had. He gathered a 2

iragen [17]

Higgffggvtgrjtbrb verve even

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2 years ago

A plane mirror is useful for seeing:

AURORKA [14]

C. A nearly identical image.

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2 years ago

A gas fills a balloon at a temperature of 27 C and 101.325 kPa of pressure. What will the pressure of the balloon be if the gas

JulijaS [17]

135.1‬kPa

Explanation:

Given parameters:

T1 = 27°C

P1 = 101.325 kPa

T2 = 127°C

Unknown:

P2 = ?

Solution:

Using a derivative of the combined gas law where we assume that the gas has a constant volume, we can solve for the unknown.

At constant volume:

$\frac{P1}{T1} = \frac{P2}{T2}$

P1 is the initial pressure

T1 is the initial temperature

P2 is the final pressure

T2 is the final temperature

Take the given temperature to K

T1 = 27 + 273 = 300K

T2 = 127 + 273 = 400K

Input the variables:

$\frac{101.325}{300} = \frac{P2}{400}$

P2 = 135.1‬kPa

learn more:

Boyle's law brainly.com/question/8928288

#learnwithBrainly

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2 years ago

The sodium salt, NaA, of a weak acid is dissolved in water; no other substance is added. Which of these statements (to a close a

ddd [48]

Answer:

Your question is somewhat poorly worded, even so what I can contribute is the statement is false, since the salt is sodium chloride, where its severe chemical formula NaCl, is a SALT not an acid and if it dissolves in water, seriously the solute of a solution, where water plays the role of the solvent

Explanation:

Sodium chloride is a binary salt, very easy to dissolve in water, it is also called the famous table salt, since it can be ingested in food even though it is not so recommended against high blood pressure conditions.

8 0

2 years ago

Find the mass of 3.89 mol of NaF

Otrada [13]

The answer is 163.333993748 grams

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2 years ago