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Bogdan [553]
3 years ago
13

Help

Chemistry
1 answer:
Nat2105 [25]3 years ago
8 0

Answer:

commensalism

Explanation:

you had it right lol

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A Group VIIA atom combines with a Group IA atom. The bond formed between them will most likely be:
ad-work [718]

Answer: The correct answer is option B.

Explanation:

  • Ionic bond is formed when there is complete transfer of electrons from one element to another.
  • Covalent bond is formed by the sharing of electrons between two elements.
  • Metallic bond is formed when two metals combine together.

Electronic Configuration of Group VII-A : ns^2np^5

This group require 1 electron to attain stable electronic configuration.

Electronic configuration of Group I-A : ns^1

This group will loose 1 electron to attain stable electronic configuration.

So, there will be complete transfer of electron from Group VII-A to Group I-A and hence, will form ionic bond between them.

Hence, the correct option is B.

8 0
3 years ago
A student has four resistors. Each resistor has a resistance of 100 ohms.
ValentinkaMS [17]

Answer:

The minimum resistance is 25 ohms.

Explanation:

Resistance of each resistor is 100 ohms. When resistors are connected in parallel, the equivalent resistance is lowest. For parallel combination, the equivalent resistance is given by :

\dfrac{1}{R}=\dfrac{1}{R_1}+\dfrac{1}{R_2}+....

Here, all resistors are 100 ohms. So,

\dfrac{1}{R}=\dfrac{1}{100}+\dfrac{1}{100}+\dfrac{1}{100}+\dfrac{1}{100}\\\\R=25\ \Omega

So, the minimum resistance is 25 ohms.

7 0
3 years ago
A frog's tongue is anchored in the very front. Why?
musickatia [10]
So it is able to reach out farther maybe?...
5 0
3 years ago
Read 2 more answers
If u mix 10ml of 70%ethanol with 20ml of 80% ethanol with 50ml water what is the concentration of the resulted solution
morpeh [17]

Answer:

29% is the final concentration

Explanation:

To solve this question we must find the volume of ethanol added and the volume of the whole solution. The concentration will be:

Volume ethanol / Total volume * 100

<em>Volume ethanol:</em>

10mL * 70% = 7mL ethanol

+

20mL * 80% = 16mL ethanol

= 23mL ethanol

<em>Total volume:</em>

10mL + 20mL + 50mL = 80mL

<em>Concentration:</em>

23mL / 80mL * 100

= 29% is the final concentration

6 0
3 years ago
Which is the highest at the top of a hill? *
Romashka-Z-Leto [24]
Potential energy

Explanation:because when your not moving at the highest point you have potential energy
6 0
3 years ago
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