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Ronch [10]
3 years ago
7

There are several different insecticides sold at your local home and garden store. They all claim to be safe for use around anim

als and children, but you want to be sure of this safety before you use one of the products at your own home. What would be the best way to increase the scientific reliability of these safety claims? (2 points)
Ask an employee of the store for her recommendation.

Look up results of tests conducted by environmental agencies.

Check for endorsements by celebrities of home-improvement shows.

Use the sales records to determine which product is most popular.
Chemistry
1 answer:
fomenos3 years ago
7 0

The answer is: Look up results of tests conducted by environmental agencies.

For example, the FDA tests give reliability to the results of improved health obtained by each company.

The FDA (The Food and Drug Administration) is a federal agency of the United States Department of Health and Human Services.

The FDA controls food safety, tobacco products, dietary supplements, prescription, pharmaceutical drugs, vaccines, biopharmaceuticals, blood transfusions, medical devices, electromagnetic radiation emitting devices, cosmetics and animal food.

Other claims are not reliable.

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What describes Rutherford’s model of the atom?
HACTEHA [7]
Rutherford's model shows that an atom is mostly empty space, with electrons orbiting a fixed, positively charged nucleus in set, predictable paths. ... It was after this that Rutherford began developing his model of the atom.
8 0
3 years ago
The Ka of carbonic acid is 4.3 x 10-7.
ratelena [41]

Answer:

poor hydrogen-ion donor

Explanation:

Acid dissociation constant constant chemistry is the equilibrium constant of the dissociation reaction of an acid, it is denoted by Ka. This equilibrium constant is a measure of the strength of an acid in a solution.

Note these as a rule of thumb:

When Ka is large, the dissociation of the acid is favored.

When Ka is small, the acid does not dissociate to a large extent.

Hence, a Ka of 4.3 x 10-7 shows a weak acid. A weak acid is a poor hydrogen ion donor because it does not dissociate to a large extent in solution.

3 0
3 years ago
What are geometric isomers?
alexandr402 [8]
Geometric isomers is defined as "each of two or more compounds that differ from each other in the arrangement of groups with respect to a double bond, ring, or other rigid structure."

I hope this answer helped you! If you have any further questions or concerns, feel free to ask! :)
7 0
3 years ago
Explain how the concept of the “survival of the fittest” relates to the theory of evolution.
Vinvika [58]
The fittest species for a certain biome will adapt and change so as to keep living. This process is evolution and an example can be giraffes. If they had smaller necks, they couldn't reach the tree tops where food is, so only the fittest one with large necks survived, and they evolved by having the entire species grow up with large necks.
8 0
2 years ago
Read 2 more answers
You have 7.86 x 10^23 molecules of NaCl. This would be equal to ___ grams of NaCl.
sergij07 [2.7K]

7.86 \times 10 {}^{23} atoms \\  \frac{7.86}{6.022}  \times  \frac{10 {}^{23} }{ {10}^{23} }   = 1.305\: moles

1.305 × (23+35.5) = 76.34 grams

3 0
2 years ago
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