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svetlana [45]
3 years ago
7

Which element is a noble gas? A. H B. Ko C. Xx D. Ar E. O

Chemistry
2 answers:
Leni [432]3 years ago
6 0

Answer:

bnklknnjjkjjnnbbbbbbn

oee [108]3 years ago
3 0

Answer:

A. H

H

Explanation:

Hope it helps :)

cggvgg

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Scientists are studying animals in a large lake area. In this lake area, both owls and raccoons eat ducks, and ducks eat frogs.
Stolb23 [73]

Answer:

Population of duck and frog will change with the change

Explanation:

The complete question is

Scientists are studying animals in a large lake area. In this lake area, both owls and raccoons eat ducks, and ducks eat frogs. The data shows that recently the size of the raccoon population decreased. How will the decrease in the raccoon population affect the other populations? Be sure to explain whether the owl population, the duck population, and the frog population will change, and why.

  1. Owl population will change
  2. Duck population will change
  3. Frog population will change

Solution

Raccoon eat duck and duck eat frog. Now if the population of Raccoon decreases then the number of predators of duck will decrease thereby increasing the population of duck.

The higher will be the number of ducks, the more frogs they will consume thereby decreasing the population of frogs

Hence both the population of duck and frog will change with the change

5 0
3 years ago
When a highly reactive metal, such as lithium (Li), is mixed with a highly reactive nonmetal, such as chlorine (Cl), they will m
Usimov [2.4K]

Answer:

True

Explanation:

lithium atoms lose one electron each while chlorine atoms gain one electron each

8 0
3 years ago
Arrange the following elements from greatest to least tendency to accept an electron.? Rank from greatest to least tendency to a
shtirl [24]
Your answer is correct, I do not understand why it would be wrong.
The electron accepting tendency of an atom is known as the tendency of an atom to accept an electron. This is ranked on a scale of 0.7 to 3.98 and these species have the following values:
F: 3.98
O: 3.44
C: 2.55
Be: 1.57
Li: 0.98
3 0
3 years ago
Read 2 more answers
What is the only letter not appearing on the periodic table?.
ivolga24 [154]

Answer:

The answer is j

Explanation:

3 0
3 years ago
Select all that apply.
serious [3.7K]
A beta particle is an electron and it has a -1 charge and zero mass.

Beta decay by emitting an electron is called as β⁻ decay. When this happens, a neutron of the element converts into a proton by emitting an electron. Hence, the mass of daughter nucleus is same as parent atom but atomic number/number of protons is higher by 1 than atomic number of parent atom.

In a β⁻ decay, the symbol is used as ₋₁⁰β or ₋₁⁰e.
             -1 is for charge
<span>              0 is for the mass of the particle

</span>
4 0
3 years ago
Read 2 more answers
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