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Alinara [238K]
3 years ago
11

An element is found to have the following naturally occurring isotopes:

Chemistry
1 answer:
ryzh [129]3 years ago
8 0

Answer:

.25x14+.75x16=15.5

Explanation:

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What is sustainability
11Alexandr11 [23.1K]

Answer:

The ability to be maintained at a certain rate or level

Explanation:

3 0
3 years ago
If HCl is a 0.05 M solution and 50 mL is used to titrate the NaOH, what is the molarity of NaOH if the flask contains 100 mL?
Liono4ka [1.6K]

Answer:

Molarity of NaOH = 0.025 M

Explanation:

Given data:

Molarity of  HCl = C₁ = 0.05 M

Volume of HCl = V₁= 50 mL

Molarity of NaOH = C₂=?

Volume of NaOH =V₂= 100 mL

Solution:

Formula:

C₁V₁  = C₂V₂

C₁ = Molarity of  HCl

V₁  = Volume of HCl

C₂ = Molarity of NaOH

V₂ = Volume of NaOH

Now we will put the values:

C₁V₁  = C₂V₂

0.05 M × 50 mL = C₂ × 100 mL

2.5 M.mL =C₂ × 100 mL

C₂  = 2.5 M.mL /100 mL

C₂  = 0.025 M

7 0
3 years ago
What would be the mass number of an atom with an atomic mass of 56.23 amu?
OlgaM077 [116]

Answer:

26

Explanation:

26 because if you split 56.23 in half you get 26

8 0
2 years ago
What orbital is represented by the transition metals in period four
andreev551 [17]

The name transition metal refers to the position in the periodic table of elements. The transition elements represent the successive addition of electrons to the d atomic orbitals of the atoms. In this way, the transition metals represent the transition between group 2 (2A) elements and group 13 (3A) elements.

8 0
3 years ago
Endothermic or exothermic- grass growing in a lawn.
DochEvi [55]

Answer:

endothermic

Explanation:

7 0
2 years ago
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