CHEMISTRY HIGH SCHOOL

In an experiment to test a new drug’s effectiveness, one group is given a larger dosage than is typically prescribed, and a second group is given a smaller dosage than is typically prescribed. Then, the results of the groups are compared to each other. What is missing that would improve this scientific design? control group

Answers

Answer 1
Answer: for the other group to pesxribe add another half to the bottle
Answer 2
Answer:

Answer:

Need a control group.

Explanation: Without a control group you would not be able to interpret the results correctly.

Related Questions

A 0.0489 mol sample of a nutrient substance, with a formula weight of 114 g/mol, is burned in a bomb calorimeter containing 6.56 × 10² g h2o. given that the fuel value is 2.04 × 10⁻¹ in nutritional cal when the temperature of the water is increased by 1.73°c, calculate the fuel value in kj.
Does acid precipitation in forests affect the reproduction rate in birds?
Which population increases the amount of soil nutrients available to plants? A. squirrels that bury nuts in the ground B. fungi that decompose the remains of dead trees C. flowers that turn to follow the sun as it moves across the sky D. bees that help spread pollen from one plant to another
Which is another name for groups of elements
How much heat is required to vaporize 50.0 g of water if the initial temperature of the water is 25.0◦c and the water is heated to its boiling point where it is converted to steam? the specific heat capacity of water is 4.18 j · ( ◦c)−1 · g −1 and the standard enthalpy of vaporization of water at its boiling point is 40.7 kj · mol−1?

Which of the following can be found in an atom's nucleus?A. cells
B. shells
C. electrons
D. protons

Answers

D. protons

AND NEUTRONS

The atoms in a compound are held together by a chemical bond. The chemical bonds can be either covalent bonds or ionic bonds. Both the bonds are considered very strong bonds. These bonds are mainly formed by sharing of electrons or in the case when one of the elements making the compound donates electron to the other element. The nucleus of each atom attracts to form a strong bond. This property of attraction between the nucleus of the atoms actually helps in forming the chemical bonds. 

The formed elements of the blood consist of .....?

Answers

Answer:

cells and cell fragments suspended in the plasma

Will bromine water and magnesium react

Answers

No. Magnesium, and Bromine are a chemical compound when put together.
Neither Bromine, nor Magnesium react with any sort of water.

What are the thin fibers of the human nervous system that send messages between different parts of the body?A.
nerves





B.
brain





C.
spinal cord





D.
eye

Answers

Answer:

The correct answer is option A, that is, nerves.

Explanation:

The nerves are also known as neurons that make up the nervous system. The nerves are considered as the unique cells, which conduct messages from one section of the body to another, as minute electrical signals. These messages are also called nerve impulses. There are three distinct kinds of neurons known, and each one exhibit a somewhat different function. These are relay neurons, sensory neurons, and motor neurons.
A. Nerves, it's literally the only one that makes sense

Within a single molecule of water, two hydrogen bonds are bonded to a single oxygen atom by_______.However when there are multiple water molecules, the partial negative charge at one end of a water molecule attracted to the partial ositive charge of another water molecule forms ____________.

Answers

Answer:

covalent bonding, hydrogen bonding

Explanation:

The molecular formula of water is H_2O in which the two hydrogen atoms are connected to the oxygen atom via covalent bonds which means that the electrons are shared in the bond.

Hydrogen bonding is a special type of the dipole-dipole interaction and it occurs between hydrogen atom that is bonded to highly electronegative atom which is either fluorine, oxygen or nitrogen atom.

Partially positive end of the hydrogen atom is attracted to partially negative end of these atoms which is present in another molecule. It is strong force of attraction between the molecules.

Thus, when multiple water molecules are there, there are connected by hydrogen bonding.

The temperature at which a substance in the liquid phase transforms to the gaseous phase refers to the substance's _______.

Answers

The temperature at which a substance in the liquid phase transforms to the gaseous phase refers to the substances boiling point.

Answer:

Boiling Point

Explanation:

The boiling point of a liquid is the temperature at which its vapor pressure is equal to the pressure of the gas above it.The normal boiling point of a liquid is the temperature at which its vapor pressure is equal to one atmosphere (760 torr).
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