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guapka [62]
2 years ago
8

Which of the following single replacement reactions will take place?

Chemistry
1 answer:
Bess [88]2 years ago
7 0

Answer:

O Al + Mg(NO3)2 -->

Explanation:

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Im so alone and i really need friends and maybe more pls dont delete my quiestion
balandron [24]

Answer:

I'll be your friend!

Explanation:

If you need help with anything just ask!

6 0
2 years ago
The density of helium is 0.17 g/L. What Is the mass of helium in a 5.4 L helium balloon? (2 sig figs) *
ioda

Answer:

The correct answer is 0.92 g

Explanation:

The density is defined as the mass per unit of volume:

Density= mass/volume

From the data provided:

volume= 5.4 L

density= 0.17 g/L

Thus, to calculate the mass of helium:

mass= density x volume = 0.17 g/L x 5.4 L= 0.918 g ≅ 0.92 g

6 0
3 years ago
What is the resultant molarity of 20mL of a 3.5M solution is diluted to 100mL? Will mark brainliest
motikmotik

Answer:

The resultant molarity is 0,7 M.

Explanation:

A dilution consists of the decrease of concentration of a substance in a solution (the higher the volume of the solvent, the lower the concentration).

We use the formula for dilutions:

C1 x V1 = C2 x V2

3,5 M x 20 ml= C2 x 100ml

C2= (3,5 M x 20 ml)/100ml

<em>C2= 0,7M</em>

4 0
3 years ago
I need helpppp plzzzz
Inessa [10]

Answer:

at first i would like to tell which class

Explanation:

125000 is the answwr

8 0
3 years ago
PLEASE ANSWER I GIVE BRAINLIEST AND MAX POINTS
d1i1m1o1n [39]

Answer:

I believe the answer is A (changes in air temperature  result in differences in air pressure which causes wind). Hope this helps

Explanation:

7 0
2 years ago
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