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Lyrx [107]
3 years ago
7

Wendy is using a poorly calibrated electronic balance to measure the mass of a crucible. Her technique in making the measurement

is very careful and she repeats it three times.What will likely characterize her measurements?
A) low accuracy and high precision

B) low accuracy and low precision

C) high accuracy and low precision

D) high accuracy and high precision
Chemistry
1 answer:
Nataly [62]3 years ago
4 0
B answer is b I repeat it’s b
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How often must opened containers of peroxide-formers be tested for peroxide formation?.
Iteru [2.4K]

Answer:

After every 6 months opened containers of peroxide formers will be tested.

Explanation:

Opened containers from which peroxide formation take place will be tested after every 6 months for safe storage. And for unopened container the test will be conducted for peroxide formation is after 12 months from manufacturing expiry date or from receiving date.

Learn more about per-oxide formation on:

brainly.com/question/28294719

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8 0
1 year ago
A sample of nitrogen gas is stored in a 0.500 L flask at 101.3 atm. The gas is transferred to a 0.750
Paladinen [302]

Answer:

67.5 atm

Explanation:

To answer this problem we can use <em>Boyle's law</em>, which states that at constant temperature the pressure and volume of a gas can be described as:

P₁V₁=P₂V₂

In this case:

P₁ = 101.3 atm

V₁ = 0.500 L

P₂ = ?

V₂ = 0.750 L

We input the data:

101.3 atm * 0.500 L = P₂ * 0.750 L

And solve for P₂:

P₂ = 67.5 atm

7 0
3 years ago
A solution that is 0.16 M in HCHO2 and 0.13 M in NaCHO2. Express your answer using two decimal places.
jolli1 [7]
Lol ok so i really don’t know sorry
4 0
4 years ago
Why is ethanol added to the reaction mixture of fat and base in the making of soap?
Oliga [24]
Ethanol is added to the reaction mixture of base and fat in the manufacture of soap because it interferes with the formation of soap and making clarifying it making it translucent. It allows fatty acid to be partially mixed in the water where the base is being dissolved.
7 0
4 years ago
5. How many mm are equal to 4.75 x 10-2 m?
liq [111]

Answer:

47.5 mm are equal to 4.75 × 10⁻² m.

Explanation:

Meter and millimeter both are units of length. Millimeter is smaller unit while meter is larger unit. The one meter consist of thousand millimeter or we can say that one thousand millimeters are equal to one meter. In order to convert the meter value into millimeter we have to multiply the values with thousand.

we know that one meter is equal to 1000 millimeter.

1 m = 1000 mm

4.75 × 10⁻² × 1000 = 47.5 mm

47.5 mm are equal to 4.75 × 10⁻² m.

6 0
3 years ago
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