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3 years ago

Unicellular organism which moves and engulfs food by changing the shape of its body

Chemistry

1 answer:

aivan3 [116]3 years ago

5 0

Explanation:

Amoeba is a single eukaryotic organism which has no definite shape. It moves with the help of pseudopodia. In order to obtain food, amoeba uses a process called phagoctyosis.

It can easily divide itself into two or more daughter cells. Thus, we can conclude that unicellular organism which moves and engulfs food by changing the shape of its body is amoeba.

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Given 3.4 grams of x compound with a molar mass of 85 g and 4.2 grams of y compound with a molar mass of 48 g How much of compou

Ulleksa [173]

Answer:

$4.36~g~XY$

Explanation:

In this case, we can start with the reaction:

$2X + Y_2~->~2XY$

If we check the reaction, we will have 2 X and Y atoms on both sides. So, the reaction is balanced. Now, the problem give to us two amounts of reagents. Therefore, we have to find the limiting reagent. The first step then is to find the moles of each compound using the molar mass:

$3.4~g~X\frac{1~mol~X}{85~g~X}=0.04~mol~X$

$4.2~g~Y_2\frac{1~mol~Y_2}{48~g~Y_2}=0.0875~mol~Y_2$

Now, we can divide by the coefficient of each compound (given by the balanced reaction):

$\frac{0.04~mol~X}{1}=~0.04$

$\frac{0.0875~mol~Y_2}{2}=0.04375$

The smallest value is for "X", therefore this is our limiting reagent. Now, if we use the molar ratio between "X" and "XY" we can calculate the moles of XY, so:

$0.04~mol~X\frac{2~mol~XY}{2~mol~X}=0.04~mol~XY$

Finally, with the molar mass of "XY" we can calculate the grams. Now, we know that 1 mol X = 85 g X and 1 mol $Y_2$ = 48 g $Y_2$ (therefore 1 mol Y = 24 g Y). With this in mind the molar mass of XY would be 85+24 = 109 g/mol. With this in mind:

$0.04~mol~XY\frac{109~g~XY}{1~mol~XY}=4.36~g~XY$

I hope it helps!

6 0

3 years ago

How many quantum numbers are used to describe the properties of electrons in atomic orbitals?

LenaWriter [7]

4 Quantum numbers are used

1.Azimuthal
2.Principal
3.Spin
4.Magnetic

6 0

3 years ago

Marta_Voda [28]

Answer:

proton. neutrons and electrons

5 0

3 years ago

as any personal information of clients, customers, employees, guests, or anyone else exposed in the incident?

Elena L [17]

Answer:

"Protecting the privacy of your employees is critical to the long term success of your business. Senior leadership, high-profile executives and their families, as well as other customer-facing employees are particularly vulnerable to targeting to bad actors when their personal information is exposed. Other potential sources of danger include disgruntled employees, ex-employees and even customers."

Hope this helps :)

8 0

4 years ago

1-isopropyl-2-methylcyclohexane identify the numbers of hydrogen atoms

yanalaym [24]

Explanation:

I think 20

0 in the photo should be 1, 1, 1

8 0

2 years ago