Answer:
4. 15
Explanation:
The given formula is:- ![(NH_4)_2SO_4](https://tex.z-dn.net/?f=%28NH_4%29_2SO_4)
1 mole of the salt contains 2 moles of nitrogen atom, 8 moles of hydrogen, 1 mole of sulfur and 4 moles of oxygen atom as can be seen from the formula.
Thus,
1 mole of salt contains total of 15 moles of the atoms which constitute the salt.
<u>Hence, 4. is the answer.</u>
Answer:
The volume is 4.13793 L
Explanation:
Density is a quantity that expresses the relationship between the mass and the volume of a body, so it is defined as the quotient between the mass and the volume of a body:
![density=\frac{mass}{volume}](https://tex.z-dn.net/?f=density%3D%5Cfrac%7Bmass%7D%7Bvolume%7D)
Density is a characteristic property of every body or substance.
The most commonly used units of density are
or
for solids, and
or
for liquids and gases.
In this case, you know:
- density= 0.87
![\frac{g}{mL}](https://tex.z-dn.net/?f=%5Cfrac%7Bg%7D%7BmL%7D)
- mass= 3.6 kg= 3,600 g (being 1 kg=1,000 g)
- volume= ?
Replacing:
![0.87\frac{g}{mL} =\frac{3,600 g}{volume}](https://tex.z-dn.net/?f=0.87%5Cfrac%7Bg%7D%7BmL%7D%20%3D%5Cfrac%7B3%2C600%20g%7D%7Bvolume%7D)
Solving:
![volume =\frac{3,600 g}{0.87\frac{g}{mL}}](https://tex.z-dn.net/?f=volume%20%3D%5Cfrac%7B3%2C600%20g%7D%7B0.87%5Cfrac%7Bg%7D%7BmL%7D%7D)
volume= 4,137.93 mL
Being 1,000 mL=1 L, then volume= 4,137.93 mL= 4.13793 L
<u><em>The volume is 4.13793 L</em></u>
There are three types of artificial cloning:
Gene cloning: copies a few segments of DNA or genes.
Reproductive cloning: it copies the whole animal.
Therapeutic cloning: produces embryonic stem cells for experiments aimed at creating tissues to replace injured or diseased tissues.
Answer:
5
Explanation:
They have 5 in common but different x
Answer: HCI + KOH → KCI + H20
Explanation:
HCI(aq) + KOH(aq) → KCI(aq) + H20(l)
Acid + base → Salt + Water.
The above is a neutralization reaction in which an acid, aqeous HCl reacts completely with an appropriate amount of a base, aqueous KOH to produce salt, aqueous KCl and water, liquid H2O only.
This is a neutralization reaction since, the hydrogen ion, H+, from the HCl is neutralized by the hydroxide ion, OH-, from the KOH to form the water molecule, H2O and salt, KCl only.