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3 years ago

Which drug presents the greatest challenges to forensic science

Chemistry

1 answer:

Charra [1.4K]3 years ago

5 0

Tobacco is the number one drug

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What are the main reactants and products in a neutralization reaction?

blagie [28]

The reactants in the neutralization reaction are an acid and a base while the products are a salt and water.

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3 years ago

Which of the following is a limitation of Bohr's model?

Murljashka [212]

Answer:

The answer is:

The first option

Explanation:

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2 years ago

When can all the coefficients in a balanced equation represent volume ratios? when reactants and products are solids at stp when

Alexxx [7]

Answer: when reactants and products are gases at STP.

Justification:

1) STP stands for standard temperature (0°) and pressure (1 atm).

2) According to the kinetic molecular theory of the gases, and as per Avogadro's principle, equal volumes of gases, at the same temperature and pressure, have the same number of molecules.

3) Since the coefficients in a balanced chemical equation represent number of moles, when reactants and products are gases at the same temperature and pressure, the mole ratios are the same that the volume ratios, and then the coefficients of the chemical equation represent the volume ratios.

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3 years ago

Read 2 more answers

A laboratory instructor gives a sample of amino-acid powder to each of four students, I, II, III, and IV, and they weigh the sam

Dovator [93]

According to the calculation, set I is both the most accurate and most precise.

Exactness is a quality or state of being precise. 2a: comparison accuracy sense: the degree of precision with which an action is carried out or a measurement expressed 2b. The novel was fact-checked for historical authenticity. 2a: conformance to truth, to a standard, or to a model: exactness It is impossible to estimate the number of casualties with accuracy. Let's calculate the precision for the fourth set, considering $AV_I_V=8.56g$

Δ1 = ∣(8.41−8.56)∣ g=0.15 g

Δ2 = (8.72−8.56) g=0.16 g

Δ3 = ∣(8.55−8.56)∣ g=0.01 g

Therefore: $\triangle_I = \frac{\triangle1+\triangle2+\triangle3}{3} = 0.107g$

Learn more about accuracy and precision here:

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1 year ago

How is coffee, Lemonade, Soda, Vinegar, Orange Juice an acid?

tatuchka [14]

Answer:

Curd, lemon juice, orange juice and vinegar taste sour. These substances taste sour because they contain acids. The chemical nature of such substances is acidic. The word acid comes from the Latin word acere which means sour.

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3 years ago