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satela [25.4K]
3 years ago
5

Help ASAP 100 POINTS AND BRAINLEST IF CORRECT! Classification Activity Worksheet

Chemistry
1 answer:
mart [117]3 years ago
6 0

As per questions,

• Myth: A dead organism is the same as a non-living thing in science.

Fact: A dead organism is <u>not</u> the same as a non-living thing in science.

Evidence: A dead organism means that it was once alive, whereas a non-living thing has never been alive.

• Myth: The Linnaeus system of classification will always stay the same.

Fact: The Linnaeus system of classification <u>will pass on</u> .

Evidence: Its new species are being found. Also, Carl Linnaeus came up with a sequential classification of living organism under different taxons namely Kingdom, phylum, class, order, family, genus and species.

• Myth: Tigers and goldfish are not related.

Fact: Tigers and goldfish are <u>related</u>

Evidence: They fall into the same category of vertebrates, which means that both creatures have spines, and internal bone structure.

• Myth: An organism's kingdom only describes physical characteristics.

Fact: An organism's kingdom <u>not </u><u>only</u> describes physical characteristics.

Evidence: This is evident by that both plant and animal kingdom are classified on the basis of photosynthetic ability. Besides physical characteristics, it also describes its mode of nutrition and food characteristics.

• Myth: Mammals and plants don't belong in the same domain.

Fact: Mammals and plants <u>belong</u> in the same domain.

Evidence: Plants have cells, nucleus, breathing and respiratory capabilities just like mammals.

---------------------★------------------

Your myth: Animals are not related to humans.

Fact: Animals are <u>indirectly related</u> to humans.

Evidence: Humans possessess some unique features found in other species, hence, we are related to apes. At the known time, <em>chimpanzees</em> is our closest relative, and we share up to 98% of the DNA sequence with them.

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The Resource Conservation and Recovery Act controls hazardous waste from its creation to its disposal. Please select the best an
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Answer:

True

Explanation:

Resource Conservation and Recovery Act (RCRA). 1976 of United States Environmental Protection Agency(EPA) empowers EPA to control the production, transportation, storage, treatment and disposal of hazardous waste. The RCRA act was amended in 1984 and 1986 to include Waste minimization along with appropriate disposal (not in the landfill site) and tackling of petroleum hazardous waste respectively along with other waste.

7 0
3 years ago
Read 2 more answers
1. Why is it necessary to equalize the pressure(i.e, have the water level the same in each tube) before taking a volume reading?
Anna11 [10]

Answer:

If you contact water with a gas at a certain temperature and (partial) pressure, the concentration of the gas in the water will reach an equilibrium ('saturation') according to Henry's law.

Explanation:

This means: if you increase the pressure (e.g. by keeping the vial closed), the CO2 concentration will increase. So it simply depends what concentration you need for your assay: 'CO2-saturated' water at low pressure or 'CO2-saturated' water at high pressure.

3 0
3 years ago
The Paris Agreement intends to direct money toward limiting climate change and lowering greenhouse gas levels. Which groups are
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I think the answer it’s e
7 0
4 years ago
Read 2 more answers
How many oxygen atoms are present in a formula unit of calcium acetate?
julsineya [31]

So we end up with a total of four oxygen atoms for this calcium acetate unit and guys that truly it for this one.

6 0
3 years ago
One way of obtaining pure sodium carbonate is through the decomposition of the mineral trona, Na3(CO3)(HCO3)·2H2O. 2Na3(CO3)(HCO
zhenek [66]
Percentage yield = (actual yield / theoretical yield) x 100%

The balanced equation for the decomposition is,
 2Na₃(CO₃)(HCO₃)·2H₂O(s) → 3Na₂CO₃(s) + CO₂(g) + 5H₂<span>O(g)

The stoichiometric ratio between </span>Na₃(CO₃)(HCO₃)·2H₂O(s)  and Na₂CO₃(s) is 2 : 3

The decomposed mass of Na₃(CO₃)(HCO₃)·2H₂O(s) = 1000 kg
                                                                                     = 1000 x 10³ g

Molar mass of Na₃(CO₃)(HCO₃)·2H₂O(s) = 226 g mol⁻¹
moles of Na₃(CO₃)(HCO₃)·2H₂O(s) = mass / molar mass
                                                         = 1000 x 10³ g / 226 g mol⁻¹
                                                         = 4424.78 mol

Hence, moles of Na₂CO₃ formed = 4424.78 mol x \frac{3}{2}
                                                     = 6637.17 mol

Molar mass of Na₂CO₃ = 106 g mol⁻¹

Hence, mass of Na₂CO₃ = 6637.17 mol x 106 g mol⁻¹
                                        = 703540.02 g
                                        = 703.540 kg

Hence, the theoretical yield of Na₂CO₃ =  703.540 kg
Actual yield of Na₂CO₃ = 650 kg

Percentage yield = (650 kg / 703.540 kg) x 100%
                            = 92.34%
7 0
3 years ago
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