3 years ago

Can someone help me with those questions I ask yesterday please

Chemistry

1 answer:

Doss [256]3 years ago

3 0

Answer:

where

Explanation:

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Please help me do three

Orlov [11]

Answer:

3a) (NH₄)₂ CO₂

b) FeF₂

c) CaN₂

d) Al₂O₃

e) NiCl₂

f) Mg₃P₂

g) KHCO₃

h) PbOH₂

6 0

2 years ago

The nucleus of an atom contains at least one<br> proton.<br> True or false

Svetllana [295]

The answer is falling

5 0

3 years ago

Im hvaing a hard time getting the right answer

Tanya [424]

Answer:

$V=23.9mL$

Explanation:

Hello!

In this case for the solution you are given, we first use the mass to compute the moles of CuNO3:

$n=2.49g*\frac{1mol}{125.55 g}=0.0198mol$

Next, knowing that the molarity has units of moles over liters, we can solve for volume as follows:

$M=\frac{n}{V}\\\\V=\frac{n}{M}$

By plugging in the moles and molarity, we obtain:

$V=\frac{0.0198mol}{0.830mol/L}=0.0239L$

Which in mL is:

$V=0.0239L*\frac{1000mL}{1L}\\\\V=23.9mL$

Best regards!

6 0

2 years ago

If the 3d and 4s bands overlap in a metal atom, what is the maximum number of electrons for this composite band? express your an

Roman55 [17]

Hey there!

3d band can hold as many as 10 electrons, while 4s can bear as many as two electrons.

The maximum number of electrons for this composite band should be 12 electrons.

Hope that helps!

3 0

3 years ago

How many eight-packs of water would you need if 32 people

bonufazy [111]

Answer:

You would need 8 eight packs of water

Explanation:

32 x 2 (seeing as this is the amount of water each person consumes)

= 64 divided by 8 (the amount of water in each pack)

= 8 eight packs of water

5 0

2 years ago

Can someone help me with those questions I ask yesterday please​

Can someone help me with those questions I ask yesterday please