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inn [45]
3 years ago
10

Where are alkaline Earth metals found on the periodic table

Chemistry
2 answers:
Eva8 [605]3 years ago
8 0
They are located in group 2
Radda [10]3 years ago
5 0
They would be located in group 2
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If it takes three "breathes" to blow up a balloon to 1.2 L, and each breath supplies the balloon with 0.060 moles of exhaled air
padilas [110]
A 3.0 L balloon is 2.5 times as big as a 1.2L balloon, and 3 times .060 equals .18, so if you multiply .18 by 2.5 you get .45 moles of air i’m pretty sure
3 0
4 years ago
The specific heat of ethanol (C2H5OH) is 2.46 J/g ° C. What is the heat capacity of 1.00 kg of ethanol?
inessss [21]

Answer:

The total heat required is 4088.6 J

Explanation:

We have three processes which involve heat absorption. We have to calculate the heat of each process and then to calculate the total heat.

1- liquid ethanol is heated from 25ºC (298 K) to the boiling point 78.5ºc (351.5 K). We use specifi heat of liquid ethanol to calculate the heat absorbed in this part:

H1= m x Sh x ΔT

H1= m x Sh x (Tfinal - Tinitial)

H1= 3.95 g x 2.45 J/g.K x (351.5 K -298 K)

H1= 517.7 JExplanation:

7 0
3 years ago
Which statement describes the bonds in iron sulfate, FeSO4?
Harlamova29_29 [7]

Answer: Would be D. Fe and S have an ionic bond, while S and O have covalent.

Hope that helps.

7 0
3 years ago
Read 2 more answers
HELP PLEASE
7nadin3 [17]

Answer:

0.031moles

Explanation:

ok so it would help if I knew the marks but 1 mole = 1000L so if the volume was 31L then if you convert you will get that answer

8 0
3 years ago
How many grams are in 0.220 mol of Ne?
yawa3891 [41]

Answer:

Mass = 4.44 g

Explanation:

Given data:

Number of moles of Ne = 0.220 mol

Mass in gram = ?

Solution:

Formula:

Number of moles = mass/ molar mass

Molar mass of Ne = 20.2 g/mol

by putting values,

0.220 mol = mass/ 20.2 g/mol

Mass = 0.220 mol × 20.2 g/mol

Mass = 4.44 g

5 0
3 years ago
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