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Dominik [7]
3 years ago
12

How many atoms of group one would react with one atom of group five?

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
7 0
Group 1 elements are comprised of: (1) hydrogen, sodium, lithium, potassium, rubidium, caesium, and francium. The tendency of these atoms is to lose one of their electrons such that they become charge +1. 

Group 5 elements contains the vanadium, niobium, tantalum, and dubnium. It is quite hard to predict the oxidation number of these elements such that it will be hard to determine the number of atoms needed to react with them. Their valence electron is 5, and they react by losing them. Hence, in order to reach the octet rule, 3 group 1 elements should be reacted. 
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PPPPPPPPlease help me (20 points!!!!)
Vika [28.1K]

\longrightarrow{\mathfrak{\frac{-9}{6}÷\frac{3}{-2}}}

\longrightarrow{\sf{\frac{-\cancel{9}}{\cancel{6}}\times\frac{-\cancel{2}}{\cancel{3}}}}

\longrightarrow{\sf{\frac{3}{3}}}

\longrightarrow{\boxed{\bf{1}}}

Identity applied -

\star{\:\:\:\:\:\:\boxed{\bf{\frac{a}{b}÷\frac{c}{d}=\frac{a}{b}\times\frac{d}{c}}}}

4 0
3 years ago
Present Value Hoew much shuold be deposited in an account paying 7.8% interest compounded monthly in order to have a balance of
Alisiya [41]

Answer: $15385 should be deposited.

Step-by-step explanation:

The principal was compounded monthly. This means that it was compounded 12 times in a year. So

n = 12

The rate at which the principal was compounded is 7.8%. So

r = 7.8/100 = 0.078

It was compounded for 4 years. Therefore,

t = 4

The formula for compound interest is

A = P(1+r/n)^nt

A = total amount in the account at the end of t years. The total amount is given as $21000. Therefore

21000 = P (1+0.078/12)^12×4

21000 = P (1+0.078/12)^48

21000 = P (1+0.0065)^48

21000 = P (1.0065)^48

P = 21000/1.365

P = $15385

6 0
2 years ago
Find the solution set of 5x<36 when x ∈ n
Margaret [11]

Answer:

5x<36

5x/5 < 36/5

x < 7.2

4 0
2 years ago
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2 years ago
Which function increases by 3 every time the x-increases by 1? A) y = 3x B) y = 3x + 1 C) y = 1 3 x D) y = 1 3 x + 1
dexar [7]

Answer:

B

Step-by-step explanation:

as it says 3 everytime the x increase by 1

4 0
2 years ago
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