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3 years ago

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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What happened to the potential energy and the kinetic energy as the skater went up and down the ramp? Why does this happen?

Salsk061 [2.6K]

Potential energy was high at the top of the ramp and kinetic energy increased while the skater went down the ramp. At the bottom of the ramp the potential energy went away. This is because kinetic energy is energy that a moving object has whereas potential is stored energy due to its position.

7 0

3 years ago

You push a shopping cart for fun with a force of 60N. If the shopping cart has a mass of 12kg, what is the acceleration on the c

ivann1987 [24]

Answer:

$\boxed {\boxed {\sf 5 \ m/s^2 }}$

Explanation:

We are asked to find the acceleration of a shopping cart, given the force and mass. According to Newton's Second Law of Motion, force is the product of mass and acceleration.

$F= m \times a$

The mass of the shopping cart is 12 kilograms and the force is 60 Newtons. Let's convert the units for force. 1 Newton is equal to 1 kilogram meter per second squared, so the force of 60 Newtons is also 60 kilogram meters per second squared.

F= 60 kg*m/s²
m= 12 kg

Substitute the values into the formula.

$60 \ kg *m/s^2 = 12 \ kg \times a$

We are solving for the acceleration, so we must isolate the variable a. It is being multiplied by 12 kilograms. The inverse operation of multiplication is division, so we divide both sides by 12 kg.

$\frac {60 \ kg *m/s^2 } { 12 \ kg}= \frac{12 \ kg \times a }{12 \ kg}$

$\frac {60 \ kg *m/s^2 } { 12 \ kg}=a$

The units of kilograms cancel.

$\frac {60 \ m/s^2 } { 12 }=a$

$5 \ m/s^2 =a$

The acceleration of the shopping cart is <u>5 meters per second squared.</u>

5 0

3 years ago

A solution is created by dissolving 13.0 grams of ammonium chloride in enough water to make 325 mL of solution. How many moles o

marin [14]

Answer:

0.243 moles of ammonium chloride are present in the resulting solution

Explanation:

We determine our compounds of the solution:

Solute: NH₄Cl

The solvent is water

Solution's volume: 325 mL

If we want to know, how many moles of ammonium chloride are present in the resulting solution we may just convert the solute's mass to moles.

Molar mass NH₄Cl = 53.45 g/mol

Moles of NH₄Cl = Mass of NH₄Cl / Molar mass NH₄Cl

13 g / 53.45 g/mol = 0.243 moles

7 0

3 years ago

Read 2 more answers

Carbon Dioxide is an example of a/an

USPshnik [31]

Answer:

Carbon Dioxide is an example of a gas and chemical compound.

Explanation:

Brainlist please:)

6 0

2 years ago

What is the % yield if 20 grams of hydrogen is reacted with 32 grams

sergiy2304 [10]

Answer:

12.5%

Explanation:

32/16 = 2 moles of oxygen

2 x 18.01 x 2/1 = 72.04 g of H2O

9/72.04 x 100 = 12.5%

balanced equation: 2H2 + O2 → 2H2O

limiting reactant is oxygen

6 0

3 years ago

Which alkaline earth metal is a component of gypsum​

Which alkaline earth metal is a component of gypsum