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nikklg [1K]
3 years ago
7

The diagram is a model of one way that materials move into a cell.

Chemistry
2 answers:
Vlad [161]3 years ago
8 0

Answer:

B. The cell membrane surrounds particles outside the cell.

Explanation:

The last step is when the cell membrane completely surrounds particles outside the cell.

This process is often known as endocytosis.

  • endocytosis is the process whereby a cell ingests materials by engulfing them using the cell membrane.
  • In this process, the cell membrane completely covers the food.
alex41 [277]3 years ago
7 0

Answer:

The answer above is incorrect. The correct answer is A:

A vacuole carries particles into the cell

Explanation:

Ape-x

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Round off the following number to 3 digits 34,560​
Vikki [24]

Answer:

3.46x10⁴

Explanation:

Hello,

In this case, we can see that the number 34,560 has five significant figures, it means that if we want to write it with three, we must take the 3, 4 and 5 only. Nevertheless, since the 6 after the five is greater than 5, we can round such five to 6, so we obtain:

346

However, the decimal places cannot get lost, therefore, we move the given thousand  to the three, so the number turns out:

3.46x10⁴

Best regards.

6 0
3 years ago
Chemical formula of binary compound a of oxygen acidic<br>​
Reika [66]

A binary compound of oxygen with another element is called oxide. An oxide is a binary compound of oxygen and another element. Oxygen combines with metals and non-metals to form respective oxides.

8 0
2 years ago
Which is an expression?<br> A. 1 = 3 - 2<br> B. 2 + 5 = 5 + 2<br> C. 4+ 3 &lt; 9<br> D. 26
Helga [31]

Answer:

A. 1 = 3 - 2

Explanation:

What defines an expression?

expression - An expression is a sentence with a minimum of two numbers and at least one math operation. This math operation can be addition, subtraction, multiplication, and division.

So if we look at the letter options we can see that A is the best choice.

3 0
3 years ago
Read 2 more answers
Why don’t these gases tend to form chemical bonds?
erik [133]

If you’re talking about noble gases, the answer would be A. Since noble gases already have 8 electrons, they don’t tend to form chemical bonds. And elements need just 8 electrons on there shells to be stable.

6 0
3 years ago
Write the balanced chemical equation for the following: The destruction of a marble statuary by acid rain: aqueous nitric acid r
Mashcka [7]

Answer: The coefficient in front of nitric acid is 2

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The salts which are soluble in water are designated by symbol (aq) and those which are insoluble in water and remain in solid form are represented by (s) after their chemical formulas. Liquids are represented by (l) and gases are represented by (g).

The balanced chemical reaction is :

CaCO_3(s)+2HNO_3(aq)\rightarrow Ca(NO_3)_2(aq)+CO_2(g)+H_2O(l)

7 0
3 years ago
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