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Mashutka [201]
2 years ago
7

Jeff wants to record the diameter of a long, thin wire using an instrument. Which of the following instruments should be use? A

Altimeter B Microscope c Measuring scale D.Micrometer​
Chemistry
1 answer:
lapo4ka [179]2 years ago
4 0

Answer:

D

Explanation:

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A brick has a mass of 100 G and a volume of 25CM3 what is the density of the brick
kumpel [21]

Answer:

\boxed {\boxed {\sf 4 \ g/cm^3}}

Explanation:

We are asked to find the density of a brick. Density is a substance's mass per unit volume. The formula for calculating density is as follows.

\rho= \frac{m}{v}

The mass of the brick is 100 grams and the volume is 25 cubic centimeters.

  • m= 100 g
  • v= 25 cm³

Substitute the values into the formula.

\rho= \frac{ 100 \ g}{25 \ cm^3}

Divide.

\rho=4 \ g/cm^3

The density of the brick is <u>4 grams per cubic centimeter.</u>

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3 years ago
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1.Hans and Zacharias Janssen created the first microscope.

2.Robert Hooke was the first to use the word “cell.”

3.Anton van Leeuwenhoek observed small organisms he called “animalcules.”

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5.Theodor Schwann theorized that animals are made of cells.

6.Rudolf Virchow theorized that cells come from other pre-existing cells.

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3 years ago
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Match the boxes helppppppp
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Answer:

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Explanation:

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Match the special cases of each gas law with its description. A law may be used more than once. In the equations, K is a constan
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Answer:

A - P1V1 = P2 V2

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7.040 x 10^-4 mol

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