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saul85 [17]
3 years ago
8

Which of the following is an element? A. MgBr B. HCl C.O .D. Cu(SO4)3

Chemistry
2 answers:
Helga [31]3 years ago
8 0

Answer:

I believe it's C. O

Explanation:

O means oxygen

DanielleElmas [232]3 years ago
5 0
The answer is c. the others are compounds.
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Please help me!!!!
miv72 [106K]

Answer:

0.8g/ml

Explanation:

d=m/v

d=20/25

d=0.8

7 0
4 years ago
Which of the following correctly describes globalization? (1 point)
Musya8 [376]

According to the context, globalization is the process of integration among individuals, businesses and governments.

<h3>What is globalization?</h3>

It is a historical process of global integration in the economic, political, technological, social and cultural spheres.

It is characterized by a progressive integration and interaction between countries, people and institutions with the expansion of capitalism and democracy, and with values such as multiculturalism and diversity.

Therefore, we can conclude that according to the context, globalization is the process of integration among individuals, businesses and governments.

Learn more about globalization here: brainly.com/question/16953231

#SPJ1

7 0
2 years ago
How many grams hydrogen in 4.5 mol H2SO4
swat32
H2SO4 ---> 2H^+ + SO4^2-

Hence n H+ = 9 mols

Mass of H = nM = (9*1) = 9g


Alternately

mass of H2SO4= nM= 4.5*98= 441

Mass of H= mass h2so4 * molar mass of H/molar mass of h2so4
Mass of H= 441 * 2/98 = 9g

4 0
3 years ago
Name the folowing ionic compound MgCl2
Blababa [14]

That is Magnesium Chloride.

4 0
4 years ago
Read 2 more answers
The volume of a sample of a gas is 1.0 liter at STP. If the pressure remains constant and the temperature is raised to 546 K, th
kvasek [131]

Answer:

2 L is the new volume

Explanation:

We can apply the Ideal Gases Law to solve the problem.

At STP, we kwow that 1 mol of gas occupy a volume of 22.4 L

Then, how many moles do we have in 1 L?

Let's do it by a rule of three:

(1L . 1 mol) / 22.4L = 0.0446 moles

These moles are at 1 atm and 273 K of temperature, so let's change our conditions.

P . V = n . R .T

1 atm . V = 0.0446 mol . 0.082 L.atm/mol K . 546 K

V = 2 L

If we pay attention, we can notice that, if we double temperature, we double the volume.

6 0
3 years ago
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