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3 years ago

PLEASE HELP ME!!

Chemistry

2 answers:

mrs_skeptik [129]3 years ago

6 0

Answer:

The answer to this question is D.

Explanation: We know that only plants have a cell wall so that is helpful and we know that plants are green because of their chloroplast. So the answer is D, cell wall, and chloroplast.

LUCKY_DIMON [66]3 years ago

4 0

Answer:

Explanation:

plant cells have a nucleus, which controls the cells activities. and the chloroplast contains a green pigment called the chlorophyll and is where photosynthesis occurs.

A animal cell does not have a nuclues, making it Prokaryotic.

Hoping i was of use :)

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defon

Answer:

$SnS_{2}$

Explanation:

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3 years ago

What reaction will take place if h2o is added to a mixture of nanh2/nh3? draw the products of the reaction (without sodium ion)?

Maru [420]

When sodium amide i.e. $NaNH_{2}$ reacts with water i.e. $H_{2}O$ results in the formation of sodium hydroxide i.e. $NaOH$ and ammonia $NH_{3}$ .

The chemical reaction is given by:

$NaNH_{2}+H_{2}O\rightarrow NH_{3}+NaOH$

Now, when ammonia i.e. $NH_{3}$ reacts with water results in the formation of ammonium hydroxide i.e. $NH_{4}OH$

The chemical reaction is given by:

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The structures of the products are shown in figure (1): ammonium hydroxide and figure (2) ammonia.

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3 years ago

What is the name of the structures that help move substances across a tract surface?

dimaraw [331]

Answer:

cilia and flagella

Explanation:

In prokaryotic species , cilia are present , and in eukaryotic species , flagella is present .

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The correct term is cilia and flagella .

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3 years ago

According to the following reaction, how many grams of potassium sulfate will be formed upon the complete reaction of 23.8 grams

Alexxandr [17]

Answer: The mass of potassium sulfate that can be produced is 73.88 grams

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ .....(1)