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Irina-Kira [14]
3 years ago
5

A student measures the mass of an object and obtains three values: 21.57 g,

Chemistry
1 answer:
Cerrena [4.2K]3 years ago
6 0

Answer:

21.65

Explanation:

The average = total divided by the number of readings

21.57

22.04

<u>21.35</u>

Total = 64.96

Average = 64.96 / 3 = 21.65

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determine the average volume from the following volume reading: 3.00ml, 2.0ml, 2.987 x 10^-3 l, and 3.4856 ml
lesya [120]

Answer:

The average of given values is 2.1221 ml

Explanation:

Given data:

Given measurements = 3.00 ml , 2.0 ml, 2.987 × 10⁻³ml , 3.4856 ml

Average value of given measurements = ?

Solution:

Formula:

Average value = sum of all measurement  / total number of measurements

2.987 × 10⁻³ml = 0.002987 ml

Now we will put the  values.

Average value = 3.00 ml + 2.0 ml + 0.002987 ml+ 3.4856 ml / 4

Average value = 8.488587 ml / 4

Average value =  2.1221 ml

The average of given values is 2.1221 ml

8 0
3 years ago
Describe the heat transfer that occurs as ocean currents move within their gyres.
Aleks04 [339]

Answer:

Ocean currents!!

Explanation:

The Oceans of the earth transfer heat from one location to another via massive ocean currents. These currents are like river flowing across the vastness of Earth, bringing warm water from the equator up towards higher latitudes, and cooler water down towards the equator.

6 0
2 years ago
Which of the following is a correct description of a double bond between two carbon atoms
kicyunya [14]

A double bond between carbon atoms is longer than a triple bond between carbon atoms.

5 0
3 years ago
what does a set of four quantum numbers tell you about an electron. compare and contrast the locations and properties of two ele
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7 0
3 years ago
How many milligrams of sodium sulfide are needed to completely react with 25.00 ml of a 0.0100 m aqueous solution of cadmium nit
NARA [144]
Na₂S(aq) + Cd(NO₃)₂(aq) = CdS(s) + 2NaNO₃(aq)

v=25.00 mL
c=0.0100 mmol/mL
M(Na₂S)=78.046 mg/mmol

n(Na₂S)=n{Cd(NO₃)₂}=cv

m(Na₂S)=M(Na₂S)n(Na₂S)=M(Na₂S)cv

m(Na₂S)=78.046*0.0100*25.00≈19.5 mg
5 0
3 years ago
Read 2 more answers
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