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Tomtit [17]
3 years ago
12

Rosa is planning an investigation using a microscope to try to identify a group of cells. She sees that the cells are joined tog

ether, so she knows that they are from one organism. If she also sees that all of the cells have cells walls, Rosa can conclude that she could be looking at bacterial cells. human cells. mouse cells. plant cells.
Chemistry
1 answer:
lara31 [8.8K]3 years ago
6 0

Answer:

either bacterial cells or plant cells but I think bacterial

Explanation:

from google: Bacteria are single celled microbes. Bacteria are classified into five groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). ... They can exist as single cells, in pairs, chains or clusters.

- cannot be human or mouse cells as both are animals and animal cells do not have cell walls

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tresset_1 [31]

Answer:

atoms of C? 2.25 x 1022 atoms C x 1 mole C = 0.037 mol C

Explanation:

 How many moles of C are in 2.25 x 1022 atoms of C?

3 0
3 years ago
Given: CaC2 + N2 → CaCN2 + C In this chemical reaction, how many grams of N2 must be consumed to produce 265 grams of CaCN2? Exp
weeeeeb [17]

Answer : The grams of N_2 consumed is, 89.6 grams.

Solution : Given,

Mass of CaCN_2 = 265 g

Molar mass of CaCN_2 = 80 g/mole

Molar mass of N_2 = 28 g/mole

First we have to calculate the moles of CaCN_2.

\text{Moles of }CaCN_2=\frac{\text{Mass of }CaCN_2}{\text{Molar mass of }CaCN_2}=\frac{265g}{80g/mole}=3.2moles

The given balanced reaction is,

CaC_2+N_2\rightarrow CaCN_2+C

from the reaction, we conclude that

As, 1 mole of CaCN_2 produces from 1 mole of N_2

So, 3.2 moles of CaCN_2 produces from 3.2 moles of N_2

Now we have to calculate the mass of N_2

\text{Mass of }N_2=\text{Moles of }N_2\times \text{Molar mass of }N_2

\text{Mass of }N_2=(3.2moles)\times (28g/mole)=89.6g

Therefore, the grams of N_2 consumed is, 89.6 grams.

5 0
3 years ago
Read 2 more answers
WILL MARK BRAINLIEST!!!! please help quickly. 1. Combine iron and copper (II) sulfate solution. (Hint: Iron will form the iron (
Black_prince [1.1K]

Answer:

Fe + CuSO4 →  Cu + Fe2(SO4)

2. Combine lead (II) nitrate and potassium iodide solutions.

Pb(NO3)2+ Kl →  KNO3 + PbI2

3. Combine magnesium metal and hydrochloric acid solution.

Mg + HCl →  MgCl 2(aq) + H 2(g)

4. Electrolysis (splitting) of water.

H2O →  Im not sure sorry

5. Burning magnesium.

Mg + O2 → MgO

Explanation:

7 0
3 years ago
What can you do if you suspect an application requires more privileges than the currently logged-on account?
Lana71 [14]

Answer:

Use the Run as administrator shortcut menu option

Explanation: When working on an application in a computer system and you discovered that it requires more privileges than what is currently logged-on account, the best approach is to use the Run as an administrator shortcut menu option to handle or address this issue, using the Run as an administrator shortcut will give you unhindered access to the application which you intend to be logged on.

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Solve the following division problem: (3.4 x 10^7)/(6.8 x 10^3) =
eduard

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5000

Explanation:

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