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DanielleElmas [232]
3 years ago
7

True or false.  As a wave travels through a given material its velocity changes.

Chemistry
2 answers:
cricket20 [7]3 years ago
8 0

Answer:

false

Explanation:

i took the test and got it right

Komok [63]3 years ago
3 0

Answer:

true

Explanation:

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The liquid will freeze

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How does the periodic table help us to predict unknown elements?
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Why is DNA important to every living thing?
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Studio
coldgirl [10]

Answer:

0.895 g/mL

Explanation:

Step 1: Given data

Mass of liquid Z (m): 2.763 lb

Volume of liquid Z (V): 5.93 cups

Step 2: Convert "m" to grams

We will use the relationship 1 lb = 453.59 g.

2.763 lb \times \frac{453.59 g}{1lb} = 1,253g

Step 3: Convert "V" to milliliters

We will use the relationship 1 cup = 236.59 mL.

5.93cup \times \frac{236.59mL}{1cup} = 1.40 \times 10^{3} mL

Step 4: Calculate the density of the liquid Z

The density (ρ) of the liquid Z is equal to its mass divided by its volume.

\rho = \frac{m}{V} = \frac{1,253g}{1.40 \times 10^{3}mL  } = 0.895 g/mL

4 0
3 years ago
Magnesium has 2 valence electrons, and oxygen has 6 valence electrons. Which type of bonding is likely to occur between a magnes
musickatia [10]

Answer:

A.  Ionic—Magnesium will give 2 electrons to oxygen, and both will become ions.

Explanation:

An ionic bond will form between the ions of both atoms. Ionic bonds forms when there is transfer of electrons between two atoms so as to achieve a noble configuration.

In the given problem, magnesium is a metal and highly electropositive. This implies that it will readily donate its valence electrons. Oxygen on the other hand is highly electronegative, to complete its outer shell configuration, it requires just two more electrons.

The transfer of the two electrons to the oxygen atom sets up an electrostatic force of attraction between the two ions and an ionic bond results.

3 0
3 years ago
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