Which of the following human activities directly destroys the habitats of marine life that live on the ocean floor?

The gram molecular mass of co2 is the same as the gram molecular mass of ?

kari74 [83]

The answer is 1. CO. A gram-molecular mass is defined as mass in grams numerically equal to the molecular weight of a substance or the sum of all the atomic masses in its molecular formula. Since CO2 and CO has both carbon and oxygen, the gram-molecular mass does not change. For a compound with carbon and oxygen, the molecular mass comes respectively from 12 (atomic mass of carbon) + (2 × 16) (atomic mass of oxygen), which is 44 g.

3 0

3 years ago

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If an endothermic reaction begins at 26 degrees celsius and decreases by 2 degrees Celsius per minute, how long would it take to

Natalija [7]

Answer:

It would take 13 minutes.

Explanation:

The temperature decreases at a linear rate, meaning that we can describe the process by using the following formula:

T₂ = T₀ - 2*t

Where T₂ is the final temperature, T₀ is the initial temperature; and t is the elapsed time in minutes.

We input the data given by the problem:

0 °C = 26 °C - 2°C/min * t

And solve for t:

t = 13 min

8 0

3 years ago

Where does most of our heat come from?

Tpy6a [65]

Answer:

the cells in your body

Explanation:

Most people that i have asked this similar question to, have said the sun. It's not the sun because the sun disappears at night. Your body produces heat because your cells are burning up energy.

3 0

2 years ago

How many grams is 20 moles of (nh4)2so4 please show work

ryzh [129]

n=20 mol

(NH)4 SO4

Atomic masses :

N- 14

H- 1

S- 32

O- 16

Therefore M= 14×2 + 1×8 + 32 + 16×4

= 132

m= nM

= 20×132

= 2640g

5 0

2 years ago

Balance 6Sb +6Cl2– 6SbCl3

labwork [276]

<u>Answer:</u>

<u>Balancin</u>g is making the number of atoms of each element same on both the sides (reactant and product side).

To find the number of atoms of each element we multiply coefficient and the subscript

For example $5 Ca_1 Cl_2$ contains

5 × 1 = 5,Ca atoms and

5 × 2 = 10, Cl atoms

If there is a bracket in the chemical formula

For example $3Ca_3 (P_1 O_4 )_2$ we multiply coefficient $\times$ subscript $\times$ number outside the bracket.......... to find the number of atoms

(Please note: 3 is the coefficient, and if there is no number given then 1 will be the coefficient )

So

3 × 3 = 9, Ca atoms

3 × 1 × 2 = 6, P atoms

3 × 4 × 2 = 24, O atoms are present.

So

Let us balance the equation given

$1Sb +1Cl_2 > 1SbCl_3$

(Unbalanced)

Reactant side - Number of atoms of each element - Product side

1 - Sb - 1

2 - Cl - 3

So we have on the product side odd number of Cl to convert to even number, multiply $SbCl_3$ by 2

The equation changes to

$1Sb +1Cl_2> 2SbCl_3$

Reactant side - Number of atoms of each element - Product side

1 - Sb - 2

2 - Cl - 6

Multiplying Sb by 2 and $Cl_2$

$2Sb +3Cl_2> 2SbCl_3$

The equation is balanced now!!!!

Reactant side - Number of atoms of each element - Product side

2 - Sb - 2

6 - Cl - 6

Balanced.

4 0

3 years ago