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Vilka [71]
3 years ago
15

Which alkaline earth metal is a component of gypsum​

Chemistry
2 answers:
77julia77 [94]3 years ago
7 0
Calcium is the right answer
Allisa [31]3 years ago
4 0

Answer:

calcium is the correct answer :)

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Simplify - Factor a
Dmitriy789 [7]

Answer:

Option 1

Explanation:

Option number 1 is the most compact one which indicates it is a solid

7 0
3 years ago
A cylindrical glass tube of length 27.4cm and radius 4 cm is filled with gas. The empty tube has a mass of 254.3 g. The tube fil
Temka [501]

Density of the gas is 3.05 × 10⁻³ g / cm³.

<u>Explanation:</u>

Volume of the cylinder = π r² h

where r is the radius and h is the height of the height or the length of the glass tube.

Here r = 4 cm and h = 27.4 cm

Volume of the cylinder = 3.14 × 4 × 4 × 27.4 = 1376.6 cm³

We have to find the mass of the gas by subtracting the mass of the tube filled with the substance from the mass of the empty tube.

Mass of the substance = 258.5 - 254.3 = 4.2 g

We have to find the density using the formula as,

$ Density = \frac{mass}{volume}

Plugin the values as,

$ Density = \frac{4.2}{1376.6}

              = 3.05 × 10⁻³ g / cm³

So the Density of the gas is 3.05 × 10⁻³ g / cm³.

3 0
3 years ago
How are elements and compounds are different
navik [9.2K]
AN element is composed from atoms with the same number of protons,
 A compound contain two or more different elements
8 0
4 years ago
A motorcycle traveling at 19 m/s starts to slow down steadily, then it stops completely in 10 seconds. What is the motorcycle ac
Dmitry [639]

Answer:

-1,9m/s^{2}

Explanatio:

a=\frac{v-v_{0} }{t}

=\frac{0-19}{10}=-1,9m/s^{2}

3 0
3 years ago
The volume of a sphere is given by V-(4/3)r where r is the radius. The density of magnesium is 1.74 g/cm What is the mass of a m
kicyunya [14]

Answer:

The answer to your question is:

mass = 3.74 g

Explanation:

Data

V = (4/3) πr³

density = 1.74 g/cm³

radius = r = 0.80 cm

Process

V = (4/3) π(0.8)³             Substitution

V = 2.1446 cm³

mass = density x volume

mass = 1.74 x 2.1446      Substitution

mass = 3.74 g

I don't understand if the second section is also a question.

8 0
3 years ago
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