The diagram shows a model of an animal cell. Explain how you'd modify the model to show the structures in a plant cell.

Answers

Answer 1

Answer:

Answer:to show the structures of a plant cell,add a cell wall around the membrane and increase the size of the vaculoe insidethe cell, draw green ovals to represent chloroplasts.

Explanation:

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Describe the difference between the terms “element”, “compound”, “molecule”, and “salt”.
Would the following errors increase, decrease, or have no effect on the calculated moles of gas collected in the experiment? Explain your answers in complete sentences.a) The measured mass of the magnesium was smaller than the true mass. b) The actual temperature of the hydrogen gas is less than room temperature.
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Which has should only be produced in a fume hood?a. Cl2
b. CO2
c. H2
d. H2O

Answers

The gas that should only be produced in a fume hood is a. Cl2.
Chlorine gas is toxic gas. Upon inhalation, it irritates the pulmonary tract and damages the respiratory tract. Both short term and long term exposure to Cl2 gas are known to have destructive effects.

List the different types of fuel that are made from crude oil

Answers

well there are quite a few so ima going to give you like four Finished motor gasoline,Distillate fuel,Kerosene-type jet fuel3, and coke

A sample originally contained 1.28 g of a radioisotope. It now contains 1.12 g of its daughter isotope. How many half-lives have passed since the sample originally formed?

3
4
8
16

Answers

The answer is 3.

The relation between number of half-lives (n) and decimal amount remaining (x) can be expressed as:

$(1/2) ^(n) =x$

We need to calculate n, but we need x to do that. To calculate what percentage of a radioactive species would be found as daughter material, we must calculate what amount remained:
1.28 - 1.12 = 0.16

If 1.28 is 100%, how much percent is 0.16:
1.28 : 100% = 0.16 : x
x = 12.5%
Presented as decimal amount:
x = 0.125

Now, let's implement this in the equation:

$(1/2) ^(n) =0.125$

Because of the exponent, we will log both sides of the equation:
$n * log(1/2) = log(0.125)$
$n = (log(0.125))/(log(1/2))$
$n = (log(0.125))/(log(0.5))$
$n= (-0.903)/(-0.301)$
$n = 3$

Therefore, 3 half-lives have passed since the sample originally formed.

Answer:

Explanation:

Which is a molecule?
A. Ne
B. NaCL
C. Trail Mix
D. graphene

Answers

B) NaCl is a molecule.

What do you call an atom that no longer has a neutral charge? A. molecule B. isotope C. ion

Answers

The correct answer is letter C. Ion is an atom that no longer has a neutral charge. It has either lost or gained it's electron. Hope this answer helps! Good luck!

An atom that no longer has a neutral charge is an C. Ion.

What is produced when an acid reacts with a metal?a. Salt and hydrogen
c. Water and base
b. Carbon and salt
d. Carbon dioxide and water

Answers

Answer: Option (a) is the correct answer.

Explanation:

When an acid reacts with a metal then there occurs formation of a salt along with liberation of hydrogen gas.

For example, $Zn + 2HCl \rightarrow ZnCl_(2) + H_(2)$

Here, Zn (zinc) is the metal which when added to hydrogen chloride acid them it leads to the formation of salt zinc chloride and hydrogen gas.

This type of reaction is also known as single displacement reaction.

Thus, we can conclude that salt and hydrogen is produced when an acid reacts with a metal.

The answer should be A. The metal will replace the hydrogen as the cation which will result in the a salt and hydrogen gas. An example is Mg reacting with HCl which produces MgCl₂ (salt) and H₂ (hydrogen).

I hope this helps. Let me know if anything is unclear.

Other Questions

Which group of atomic models is listed in historical order from the earliest to the most recent?(1) hard-sphere model, wave-mechanical model, electron-shell model (2) hard-sphere model, electron-shell model, wave-mechanical model (3) electron-shell model, wave-mechanical model, hard-sphere model (4) electron-shell model, hard-sphere model, wave-mechanical model

Check the statements that are a part of the Early Atomic Theory. a.Scientists believe that the atom is made up of elements. b.Atoms combine in whole number ratios to form compounds. c.Atoms cannot be created or destroyed during a chemical reaction.

How would a flood be a limitation for synthetic polymers that rely on natural rubber in its production?

What is the classification of clouds based on?