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enot [183]
3 years ago
15

Electronegativity tends to increase from left to right across a row, because

Chemistry
1 answer:
m_a_m_a [10]3 years ago
7 0
<span>Electronegativity tends to increase from left to right across a row, because </span>the attraction between the nucleus and the valence electrons increases. 
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Explain why you need a control group
Mariulka [41]

Answer: You need a control group because......

Explanation:  You need a control group in order to study if there is any difference in behavior between two groups when an external stimulant is introduced.  

7 0
4 years ago
Calculate the mass of aluminum bromide that can be produced from 4.4 mil of bromide
Aloiza [94]

Answer:

197 grams

Explanation:

Without taking into account the number of sig figs you have for your values, you can say that the answer will once again be

197 g of aluminium bromide.

(I hope this is right)

7 0
3 years ago
PLEASE ANSWER ASAP AND SHOW WORK: A camping stove uses a 5.0 L propane tank that holds 68.0 moles of liquid C3H8. How large a co
seropon [69]

<u>Answer:</u> The volume of the container needed is 554.6 L

<u>Explanation:</u>

To calculate the volume of the gas, we use the equation given by ideal gas which follows:

PV=nRT

where,

P = pressure of the gas = 3.0 atm

V = Volume of the gas = ? L

T = Temperature of the gas = 25^oC=[25+273]K=298K

R = Gas constant = 0.0821\text{ L.atm }mol^{-1}K^{-1}

n = number of moles of propane gas = 68.0 moles

Putting values in above equation, we get:

3.0atm\times ?L=68mol\times 0.0821\text{ L.atm }mol^{-1}K^{-1}\times 298K\\\\V=\frac{68\times 0.0821\times 298}{3.0}=554.6L

Hence, the volume of the container needed is 554.6 L

6 0
3 years ago
The picture shows a balloon containing air.
hram777 [196]

Answer:

The air particles are sped up and they are more spaced apart.

Explanation:

This is because when things are heated up the particles speed up and flow more freely causing them to be space apart.

5 0
3 years ago
A hypothesis is ______ to explain a set of observations.
aliina [53]

Answer:

1

Explanation:

one possible way its just a theory of what the answer could be

8 0
3 years ago
Read 2 more answers
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