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2 years ago

7

PLEASE help and quickly as possible it is one question that i need answered so that i can answer all my other questions PLEEEEAS

E
it's for science- it's about fossils - please answer question A with an explanation on what the fossil is

1 answer:

Gnoma [55]2 years ago

6 0

Answer:

fossilized trilobites

Explanation:

I hope it help

brainliest plssssss

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students used a balance and a graduated cylinder to collect the data shown in table 7. calculate the density of the sample. if t

Licemer1 [7]

Answer:

Percentage error = 1.88 %

Solution:

Data Given:

Mass of Sample = 20.46 g

Volume of Sample = 43.0 mL - 40.0 mL = 3.0 mL

Formula Used:

Density = Mass / Volume

Putting values,

Density = 20.46 g / 3.0 mL

Density = 6.82 g.mL⁻¹

Percentage Error:

Experimental Value = 6.82 g.mL⁻¹

Accepted Value = 6.95 g.mL⁻¹

= 6.82 g.mL⁻¹ / 6.95 g.mL⁻¹ × 100 = 98.12 %

Percentage Error = 100 % - 98.12 %

Percentage error = 1.88 %

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3 years ago

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d1i1m1o1n [39]

Answer:

direct effect

Increasing the pressure increases the boiling point and decreasing the pressure decreases the boiling point

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3 years ago

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Name two ways adding salt to lower the freezing temperature benefits you.

miss Akunina [59]

Answer:

Explanation:

Lowers freezing point

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mafiozo [28]

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3 years ago

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GalinKa [24]

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