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KiRa [710]
3 years ago
5

Which tool is used to measure an object's mass

Chemistry
2 answers:
vivado [14]3 years ago
8 0

Answer:

balance

Explanation:

a balance compares an object with a known mass to an object questioned :)

lidiya [134]3 years ago
6 0

Answer:

Weighing balance

Explanation:

In chemistry, a weighing balance is used to measure the mass of an object. Usually, manufacturers provide standard masses that are used to calibrate the weighing balance, these standards serve as "stored reference" for other objects that are to be weighed on the balance. Weighing balances also have there respective "least" and "peaks" they can measure. This means that every weighing balance has it's own capacity - while some can measure as little as 0.001 g up to 300 g, some can only measure 0.1 g to 1000 g.

The sensitivity/precision of the work to be done determines the type of the balance to be used.

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Explain why, when performing stoichiometric calculations, it is
pshichka [43]

Answer:

Stoichiometric Coefficients

The balanced equation makes it possible to convert information about one reactant or product to quantitative data about another element. Understanding this is essential to solving stoichiometric problems

Explanation:

3 0
3 years ago
PLEASE HELP!!! Which claim about the causes of air pollution and water pollution is true? A. the burning of fossil fuels causes
BaLLatris [955]

Answer:

the first one which is A

Explanation:

the burning of fossil fuels causes both air pollution and water pollution

3 0
3 years ago
Read 2 more answers
For the wild type (unmutated) enzyme, you measure a rate of p-nitrophenol release by the change in absorbance at 405 nm (for the
Aleks04 [339]

Answer:

1.2x10⁻⁵M = Concentration of the product released

Explanation:

Lambert-Beer's law states the absorbance of a solution is directly proportional to its concentration. The equation is:

A = E*b*C

<em>Where A is the absotbance of the solution: 0.216</em>

<em>E is the extinction coefficient = 18000M⁻¹cm⁻¹</em>

<em>b is patelength = 1cm</em>

<em>C is concentration of the solution</em>

<em />

Replacing:

0.216 = 18000M⁻¹cm⁻¹*1cm*C

<h3>1.2x10⁻⁵M = Concentration of the product released</h3>
4 0
3 years ago
Compare the function of a switch in an electric circuit to the function of a water faucet. How are they different?
Sever21 [200]
They both turn something on, and the way they are different is the way they turn it off<span>
</span>
5 0
4 years ago
How much faster does ethane (C2H6) gas travel compared to chlorine gas?
zimovet [89]

Answer:

\large \boxed{\text{54 $\, \%$ faster }}

Explanation:

v_{\text{rms}} \propto \sqrt{\dfrac{3RT}{M}

if temperature is constant.  

v_{\text{rms}} \propto \sqrt{\dfrac{1}{M}

if we are comparing two gases,

\dfrac{v_{2}}{v_{1}} = \sqrt{\dfrac{M_{1}}{M_{2}}}

Let chlorine be Gas 1 and ethane be Gas 2

Data:

M₁ =  70.91 g/mol

M₂ = 30.07 g/mol

Calculation

\begin{array}{rcl}\dfrac{v_{2}}{v_{1}} & = & \sqrt{\dfrac{M_{1}}{M_{2}}}\\\\& = & \sqrt{\dfrac{70.91}{30.07}}\\\\& = & \sqrt{2.358}\\\\& = & \mathbf{1.54}\\\end{array}\\\text{Ethane molecules travel at 1.54 times the speed of chlorine molecules}\\\text{or $\large \boxed{\textbf{54 $\%$ faster }}$ than chlorine molecules}

5 0
3 years ago
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