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3 years ago

When Earth is between the Moon and the Sun, how is the Moon seen?

2 answers:

7 0

When the Earth is between the moon and the sun, how is the moon seen, in a solar eclipse on Earth. The answer should be A. Full moon. Hope it helped you, and have a great day.

AVprozaik [17]3 years ago

6 0

It is B, because it is an eclipse.

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The mass of a block is 12 g and the volume is 6 ml. Calculate the density of the block.

HACTEHA [7]

Answer:

According to mass and volume, block density is 2 g/ml

Explanation:

Density is a measure, usually used in physics and chemistry, that relates the mass and volume of a solid or compound.

In general terms, the density is directly proportional to the mass, and inversely proportional to the volume, so increasing the mass will also increase the density.

The formula used to calculate the density is

ρ = $\frac{m}{V}$

Therefore, according to the mass and density of the block

ρ = $\frac{12}{6}$ = 2g/ml

Being the density of the block equal to 2 g/ml.

<em>The other options are not possible, because the values given do not correspond to the result of the equation.</em>

5 0

2 years ago

Explain how elements are arranged on the periodic table. What does the table tell you when you read it like sentences in a book

DochEvi [55]

Explanation:

In periodic table:

Elements are arranged according to their atomic number in increasing order.
When we move left to right we move along a period.The period in the periodic table tell us about the principal quantum number,(n).
When move from top to bottom we are moving in group. The group in the periodic table tell us about the number of the valence electrons present in the valence shell of the elements of the particular group.

3 0

3 years ago

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How does the electric force between two charged particles change if the

Anuta_ua [19.1K]

C. It is decreased by a factor of 3.

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3 years ago

What is the chemical reaction between an acid and a base which results in the formation of salt and water?

Tcecarenko [31]

Neutralization is the process in which anacid and base react to give salt and water

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3 years ago

1. Why do scientists use a standard measurement system?

Margaret [11]

Answer:

Explanation:

1.Scientists use a shared system for reporting measurements called the International System of Units (SI). We use common measurement systems because science involves a lot of replication to confirm results. The most common system used in science is the metric system.

2.m, kg, m^3

3. g value change

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2 years ago

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