2 years ago

Please help............

Chemistry

1 answer:

Levart [38]2 years ago

3 0

Answer:

Explanation:

An ammeter, a voltmeter. The third one i didnt know it

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Which of the following is a reactant in aerobic respiration?

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The reactant in aerobic respiration is oxygen (answer C)

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2 years ago

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Bas_tet [7]

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Radium is used to produce Radon

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3 years ago

If a gold bar is 16,000 g mass and 800 cm^3 volume what is the density?

ki77a [65]

Answer:

<h3>The answer is 20 g/cm³</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

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volume = 800 cm³

We have

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5 0

3 years ago

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lukranit [14]

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8 0

3 years ago

15g of FeCI3 is dissolved in 450 mL of solution. What is the concentration of [CI-]?

storchak [24]

The concentration of [CI-] : 0.617 M

<h3>Further explanation</h3>

FeCl₃ dissolved in 450 mL of solution(will dissociate )

Reaction

FeCl₃⇒Fe³⁺+3Cl⁻

mol FeCl₃(MW=162,2 g/mol)

$\tt \dfrac{15}{162.2}=0.0925$

mol Cl⁻ :

$\tt \dfrac{3}{1}\times 0.0925=0.2775$

molarity of Cl⁻ :

$\tt \dfrac{0.2775}{0.45}=0.617~M$

7 0

2 years ago

Please help............​

Please help............