Becky is a flower gardener. Her plants need a rich soil, full of nutrients, to grow. Propose a detailed plan of how Becky can determine if her soils are fit for growing flowers

Answers

Answer 1

Answer:

Answer:

In order to grow a plant one should first look and compare the climate of the local environment in which the plant grows with the climate in which the person is planning to grow the plant. Thus, in the given case, Becky should do more examinations on the kind of environment and the kind of soil in which the flower is grown generally. By finding the kind of soil, one should perform some brisk assessment on the structure and composition of the soils that will permit one to find that whether or not the planting location is suitable for the growth of the flower.

Answer 2

Answer: For the answer to the question above, Becky should consider the climate of the native environment in which the plant is found then compare it the to the climate in which she plans on growing the flowers, similar climates will produce some similarities between soils. She should research on what type of environment the plant was suitable. Because like strawberries can't be grown on desert temperature and soil.

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An illegal drug stimulates the parasympathetic nervous system, causing the user to appear tranquilized. What could indicate to a paramedic whether or not the person took this drug?A. High blood pressure and droolingB. Low blood pressure and droolingC. High blood pressure and dry mouthD. Low blood pressure and dry mouth
Find volume of 1 mole of helium gas when the pressure is 1.46 atm and the temperature is 270k

What intramolecular forces exist in methyl alcohol?

Answers

There are hydrogen bonds inside -- they are the strongest.
What's more there are dipole-dipole forces.

A 50.0-gram block of copper at 10.0°C is carefully lowered into 100.0 grams of water at 90.0°C in an insulated container. Which statement describes the transfer of heat in this system?(1) The water loses heat to the block until both are at 10.0°C.
(2) The block gains heat from the water until both are at 90.0°C.
(3) The water loses heat and the block gains heat until both are at the same temperature that is between 10.0°C and 90.0°C.
(4) The water gains heat and the block loses heat until both are at the same temperature that is between 10.0°C and 90.0°C.

Answers

First consider and take note of the following:
1. When 2 or more finite amounts of substances are mix together (with different temperature) the final temperature is never equivalent to the initial temperature of any of the substances involved.
2. The substances meet at an equilibrium temperature.
3. Heat transfers from a higher temperature to a lower temperature.

Only choice (3) satisfies the conditions.

Final answer:

Heat transfers from the water to the copper block until both reach an equilibrium temperature.

Explanation:

The transfer of heat in this system can be described by (4) The water gains heat and the block loses heat until both are at the same temperature that is between 10.0°C and 90.0°C.

This is because heat always flows from the object with higher temperature to the object with lower temperature. In this case, the water at 90.0°C has a higher temperature than the copper block at 10.0°C. As a result, heat will transfer from the water to the copper block, causing the water to cool down and the copper block to heat up. Eventually, both objects will reach an equilibrium temperature somewhere between 10.0°C and 90.0°C.

Learn more about Heat Transfer here:

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Calculate the mass of copper if 2653.8 J of copper is cooled from 155 oC to 23 oC. The specific heat of copper is 0.385 J/g*oC.

Answers

Answer:

The answer to your question is m = 52.22 g

Explanation:

Data

mass of Cu = ?

Energy = 2653.8 J

temperature 1 = 155°C

temperature 2 = 23°C

Specific heat = 0.385 J/g°C

To calculate the mass of Copper, use the formula of specific heat and solve it for mass.

Formula

Q = mC(Temperature 2 - Temperature 1)

Solve for m

m = Q / C (Temperature 2 - Temperature 1)

Substitution

m = 2653.8 / 0.385(23 - 155)

Simplification

m = 2653.8 / 0.385(132)

m = 2653.8 / 50.82

Result

m = 52.22 g

Answer:

The mass of the copper is 53.22 grams

Explanation:

Step 1: Data given

Energy = 2653.8 J

Initial temperature = 155 °C

Final temperature = 23°C

Specific heat of copper = 0.385 J/ g°C

Step 2: Calculate mass of copper

Q = m*c*ΔT

⇒ with Q = the energy = 2653.8 J

⇒ with m = the mass of copper = TO BE DETERMINED

⇒ with c= The specific heat of copper = 0.385 J/g°C

⇒ΔT = The difference in temperature = T2 - T1 = 23 - 155 = -132°C

2653.8 J = m * 0.385 J/g°C * 132 °C

m = 2653.8 / (0.385*132)

mass of copper = 52.22 grams

The mass of the copper is 53.22 grams

Express 750 dg in g.

Answers

Dg stands for 10 (from Greek Deka, ten) , so 1 decagram is 10 grams.

750 decagrams is then equivalent to 750*10 grams, which is also 7500 grams (it's also 7.5 kg).

An Arrhenius acid has(1) only hydroxide ions in solution
(2) only hydrogen ions in solution
(3) hydrogen ions as the only positive ions in solution
(4) hydrogen ions as the only negative ions in solution

Answers

Answer: (3) hydrogen ions as the only positive ions in solution

Explanation: Arrhenius acids are substances which dissociate in water to give $H^+$ ions.

For example: $HCl$ is an Arrhenius acid.

$HCl\rightarrow H^++Cl^-$

Arrhenius bases are substances which dissociate in water to give $OH^-$ ions.

For example: $NaOH$ is an Arrhenius base.

$NaOH\rightarrow Na^++OH^-$

The answer is (3) hydrogen ions as the only positive ions in solution. One ionic compound must have positive ion and negative ion at the same time. The Arrhenius base has hydroxyl ion as only negative ions in solution.

Which of the following would be used to measure the amount of matter in an object?Weight

Density

Mass

Gravity

Answers

the answer is Weight

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