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marysya [2.9K]
2 years ago
15

What are cells and how are they important to maintaining life?

Chemistry
1 answer:
devlian [24]2 years ago
3 0

Answer:

Cells are the "building blocks for all living things." Without cells, we couldn't survive. Cells do many important things. Some of the things they can do are taking in food nutrients, frame our bodies, and change the food nutrients into energy.

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you are investigating an organic compound. you discover the following: it contains no hydrogen atoms. what property do you expec
pashok25 [27]
This can be, for example, halogensubstituted hydrocarbons.
CCl₄, C₂F₆.

Or halides halocarboxylic acids, and other compounds.
      O
      II
Cl₃C-Cl
6 0
2 years ago
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Carbon dioxide (CO2) is the gas that is mainly responsible for global warming (the greenhouse effect). The burning of fossil fue
Nesterboy [21]

Answer:

1.7\cdot 10^{15} g

Explanation:

Glucose reacts with oxygen do produce carbon dioxide and water:

C_6H_12O_6 (s) + 6 O_2 (g)\rightarrow 6 CO_2 (g) + 6 H_2O (l)

Given a daily mass of glucose:

m_1 = 5.0\cdot 10^2 g

Find moles of glucose:

n_1 = {5.0\cdot 10^2 g}{180.156 g/mol} = 2.775 mol

From stoichiometry of this equation, moles of carbon dioxide can be found by multiplying this amount by 6:

n_2 = 2.775 mol\cdot 6=16.65 mol

Convert this into mass using the molar mass of carbon dioxide:

m_2 = 16.65 mol\cdot 44.01 g/mol = 732.8 g

This is the mass of carbon dioxide per person per day. Multiply by the population and by the number of days to get the total mass:

732.8 \frac{g}{person\cdot day}\cdot 365 days\cdot 6.5\cdot 10^9 people = 1.7\cdot 10^{15} g

5 0
2 years ago
what would the molarity of a solution be if you took 10 mL of a 13M stock solution and made a 300 mL solution?
nignag [31]

Answer:

0.43M

Explanation:

8 0
3 years ago
How do you convert volume to moles at STP?
Vanyuwa [196]

The conversion of volume to moles at STP is 1 mole.

The ideal gas equation is given as :

P V = n R T

where,

P = pressure of the gas

V = volume of the gas

n = ?

R = constant = 0.823 atm L / mol K

T = temperature

At STP , the pressure is 1 atm and the temperature is 273.15 K, the volume At STP is 22.4 L.

moles , n = P V / R T

n = ( 1 × 22.4 ) / (0.0823 × 273.15)

n = 1 mole

Thus, at STP , the number of moles is 1 mol.

To learn more about moles here

brainly.com/question/8429153

#SPJ4

6 0
1 year ago
Which metals have similar chemical properties? Check all that apply. barium beryllium rubidium radium titanium calcium platinum
forsale [732]

beryllium & calcium are the two in the same column or family

6 0
3 years ago
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