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evablogger [386]
3 years ago
9

Given the image below, which calculation will NOT give you the correct average atomic mas C-12 C-13 (0.6.12)+0.4.13) (60-12)+40-

13) (12+12+12-12-12+12+13+13+13+13)/10 16/10) 12+(4/10) 13​
Chemistry
1 answer:
Orlov [11]3 years ago
7 0

Answer:

Correct Answer: B.  (60⋅12)+(40⋅13)

Explanation:

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Is a oak tree a invertebrates
viva [34]

Answer:

yes

Explanation:

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7 0
3 years ago
Read 2 more answers
What is the new concentration of 25.0mL added to 125.0mL of 0.150M
____ [38]

Answer:

The new concentration is 0.125 M.

Explanation:

Given data:

Initial volume V₁ = 125.0 mL

Initial molarity M₁ = 0.150 M

New volume V₂ = 25 mL +125 mL = 150 mL

New concentration M₂ = ?

Solution:

M₁V₁    =    M₂V₂

0.150 M × 125 mL = M₂ × 150 mL

M₂ = 0.150 M × 125 mL / 150mL

M₂ = 18.75 M.mL/150 mL

M₂ = 0.125 M

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8 0
3 years ago
There are four substances, A, B C and D. A and C are pure substances. They cannot be broken down into anything simpler by chemic
yarga [219]

The answer is C Becuz D is a compound and that is the only answer that says it

6 0
4 years ago
Given the balanced equation:
poizon [28]
The answer is (2) 10.0 mol. The equation given is balanced. So the ratio of mol number of compound is the ratio of the number before the compound. The HCl and CO2 ratio is 2:1. So the answer is 10.0 mol.
5 0
4 years ago
Describe what half-life is.<br> answer in a paragraph please.
dangina [55]

Half-life is defined as the quantity to reduce to half of its initial value.

Explanation:

The term half-life is generally used in nuclear physics which describes how long a stable atom can survive a radioactive decay or how quickly an unstable stable atom can undergo radioactive decay. Half-life is a constant and does not have any units.

<u>The formula to calculate half-life: </u>

N(t) = \bold{N_{0} e^{-\lambda t}}

Here N(t) is the quantity which is “not decayed”.

N_0 is the “initial quantity” of the substance.

λ is the “decay constant”

4 0
4 years ago
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