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Alika [10]
2 years ago
6

Where are calcium ions (Ca2+) stored in the body?

Chemistry
2 answers:
ANTONII [103]2 years ago
5 0
Calcium is stored in bones in the body

padilas [110]2 years ago
3 0
Your bones contain a large amount of calcium. thats why you drink milk to make them strong!!
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5. How many moles are in 10g of sodium?
vagabundo [1.1K]

Answer:

0.43

Explanation:

divide the given mass by molar mass from the periodic table

3 0
3 years ago
Which compound is classified as a hydrocarbon? A) butanal B) butyne C) 2-butanol D) 2-butanone
fenix001 [56]

Answer:

butyne

Explanation:

alkane, alkene, and alkyne are all examples of hydrocarbons.

butyne = alkyne

7 0
3 years ago
24 grams of CH4 was added to the above reaction. Calculate the theoretical yield of CO2. A. 66 grams B. 33 grams c. 132 grams. D
Sonbull [250]

Answer:

Option A. 66 g

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

CH₄ + 2O₂ —> CO₂ + 2H₂O

Next, we shall determine the mass of CH₄ that reacted and the mass of CO₂ produced from the balanced equation. This is illustrated below:

Molar mass of CH₄ = 12 + (4×1)

= 12 + 4 = 16 g/mol

Mass of CH₄ from the balanced equation = 1 × 16 = 16 g

Molar mass of CO₂ = 12 + (16×2)

= 12 + 32 = 44 g/mol

Mass of CO₂ from the balanced equation = 1 × 44 = 44 g

SUMMARY:

From the balanced equation above,

16 g of CH₄ reacted to produce 44 g of CO₂.

Finally, we shall determine the theoretical yield of CO₂. this can be obtained as follow:

From the balanced equation above,

16 g of CH₄ reacted to produce 44 g of CO₂.

Therefore, 24 g of CH₄ will react to produce = (24 × 44) /16 = 66 g of CO₂.

Thus, the theoretical yield of CO₂ 66 g

8 0
2 years ago
Is LiOH soluble or insoluble
Effectus [21]
 It is soluble in water and slightly soluble in ethanol.
6 0
2 years ago
5. Which is an example of inertia?
Hitman42 [59]

Answer:

Explanation:

D. When the truck driver slammed on the brakes, all the boxes in the back

of the truck slid forward.

6 0
3 years ago
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