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3 years ago

The population of worms in a garden ecosystem is decreasing. The population of birds will most likely _____.

Chemistry

1 answer:

Semenov [28]3 years ago

3 0

Answer:

The population of birds would Decrease

Explanation:

A birds main source of food include: Insects, worms, and grubs. Seeds, grasses, and plant material. Nectar and pollen

It also depends on what bird it is but with any species if there main source of food decrease then they decrease or move out of the area.

Hope this helps

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C8H10N4O2 is the chemical formula for caffeine, there are 8 carbons. List the 3 remaining elements in caffeine and how many atom

Nataly [62]

Caffeine that is C8H10N402 is molecule which made up of 4 different elements. apart from carbon the other element includes

element symbol
nitrogen N
oxygen O
hydrogen H
The number of atom present in caffeine molecule are as follows

Nitrogen=4 atoms
Oxygen=2 atoms
Hydrogen=10 atoms

4 0

3 years ago

Cobalt-60 is a strong gamma emitter that has a half- life of 5.26 yr. The co balt-60 in a radiotherapy unit must be replaced whe

Alenkasestr [34]

<u>Answer:</u> The sample of Cobalt-60 isotope must be replaced in January 2027

<u>Explanation:</u>

The equation used to calculate rate constant from given half life for first order kinetics:

$t_{1/2}=\frac{0.693}{k}$

where,

$t_{1/2}$ = half life of the reaction = 5.26 years

Putting values in above equation, we get:

$k=\frac{0.693}{5.26yrs}=0.132yrs^{-1}$

Rate law expression for first order kinetics is given by the equation:

$k=\frac{2.303}{t}\log\frac{[A_o]}{[A]}$

where,

k = rate constant = $0.132yr^{-1}$

t = time taken for decay process = ? yr

$[A_o]$ = initial amount of the sample = 100 grams

[A] = amount left after decay process = (100 - 75) = 25 grams

Putting values in above equation, we get:

$0.132=\frac{2.303}{t}\log\frac{100}{25}\\\\t=10.5yrs$

The original sample was purchased in June 2016

As, June is the 6th month of the year, which means the time period will be $2016+\frac{6}{12}=2016.5$

Adding the time in the original time period, we get:

$2016.5+10.5=2027$

Hence, the sample of Cobalt-60 isotope must be replaced in January 2027

3 0

3 years ago

2CO + O2 --> 2002

olga_2 [115]

8 moles I think I’m not sure

4 0

3 years ago

Compare your predicted ranking of the objects’ volumes with their final ranking based on their measurements. What are the advant

Schach [20]

Answer:

Since its data sample can be quantified using fixed numerical parameters, quantitative observation yields more accurate results than qualitative observation and it is suitable for statistical investigations.

Explanation:

8 0

3 years ago

Given the reaction:

WARRIOR [948]

Answer:

4 moles

Explanation:

From the equation 1 mole of C6H1206 produces 6 moles of CO2.

Therefore the answer is 24/6 = 4 moles of C6H1206.

6 0

3 years ago