All categories

4 years ago

Help me please.... and Thankyou

Chemistry

1 answer:

stealth61 [152]4 years ago

6 0

The answer is B. because it starts at Conifer Seeds and ends at Northern goshawks.

You might be interested in

By which mechanism would a steroid molecule diffuse into the cell?

LUCKY_DIMON [66]

Answer: Directly through the phospholipid membrane

Explanation:

The cell membrane consist of a phospholipid bilayers structure. In the interior of the membrane, the phospholipid tail are hydrophobic, which makes the cell membrane to be selectively permeable, it is permeable to non polar molecules and impermeable to polar molecules.

Because Steroids are fat soluble, non polar compounds, they can diffuse directly through the hydrophobic, non polar core of the phospholipid bilayer without the use of carrier proteins.

5 0

3 years ago

ethanol has a density of 0.789 g/cm3, how many pounds of ethanol would be in a drum containing 7.0 gallons of ethanol

max2010maxim [7]

From the density of ethanol given, the number of pounds of ethanol in the drum will be 46.099 pounds.

<h3>How to calculate density</h3>

Density of ethanol = 0.789/cm³

1 gallon = 3785.4ml

Volume of ethanol = 7 gallons = 7 × 3785.4ml = 26497.8ml

Mass of ethanol = Volume × Density.

= 26497.8 × 0.789

= 20906.764g

Since 1g = 0.002205 pounds, the mass of ethanol will be:

= 20906.764 × 0.002205

= 46.099 pounds.

Learn more about density on:

brainly.com/question/11730603

5 0

2 years ago

A naoh (aq) stock solution was created by dissolving 3.88 g naoh in water to create a 100.00 ml solution. what is the concentrat

Bess [88]

0.0381g/mL will be concentration of this solution

The ratio of a solute—a substance that dissolves—to a solvent—a substance that does not dissolve—determines the concentration of a solution in chemistry. C = m/V, where C is the concentration, m is the mass of the solute dissolved, and V is the overall volume of the solution, is the accepted formula.

How to reach the solution?

First find for the density of NaOh which is 2.13 g/cm3

3.88 ÷ 2.13 = 1.82mL

100mL + 1.82mL = 101.82mL

3.88 ÷ 101.82mL = 0.0381g/mL

More about NaOh:

The extremely adaptable chemical sodium hydroxide (NaOH), sometimes referred to as caustic soda or lye, is employed in a range of manufacturing processes. A byproduct of the manufacturing of chlorine is sodium hydroxide. Numerous items that are used on a daily basis, including paper, metal, drain and oven cleansers for industry, soap, and detergents, are made with sodium hydroxide.

Learn more about Naoh here:

brainly.com/question/3366922

#SPJ4

5 0

2 years ago

The picture below shows a warm air mass caught between two cooler air masses. What is this type of front called? Plz, I really n

pentagon [3]

An occluded front forms when a warm air mass is caught between two cooler air masses.

6 0

3 years ago

Compare the relative strength of intermolecular forced in solids liquids and gases

DIA [1.3K]

Answer:

Intermolecular forces are weaker attractions that hold molecules or noble gas particles close together when they are in a liquid or solid form.

Explanation:

3 0

4 years ago