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Lubov Fominskaja [6]
3 years ago
7

Select True or False: Hydrogen plays an important role in many industrial processes. The following correctly represents a balanc

ed chemical equation for its production by the reaction of propane (C3H8, obtained from natural gas) and steam. 2 C3H8(g) 3H2O(g) → 6CO(g) 7H2(g)
Chemistry
1 answer:
Orlov [11]3 years ago
5 0

Answer: False

Explanation:

Since the given equation is not balanced properly.

Since oxygen and hydrogen atoms are not balanced.

There should be 6 H2O (g) molecules and 14 mol H2 (g)

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6. We have many vestigial structures that are similar to structures on modern day chimpanzees. How can we
ollegr [7]

Answer:

pineal body is a vastigious structure which signifies same origin of chimpanzee and modern man

Explanation:

5 0
3 years ago
PLEASE HELP IM REALLY STRESSED OUT AND I JUST NEED SOMEONE TO DO THIS FOR ME! IK ITS ALOT SORRY! In this task, you'll determine
Burka [1]

Answer:

The reaction is endothermic

Part A: Yes because there is an immediate reaction of bubbling vigorously.

Part B: It releases energy because when the compounds are added together they are immediately releasing it by bubbling and turning cold.

Part C: Yes because the liquids inside when combined give off coldness that makes the liquid temperature decrease to use this chemical reaction could definitely be used to keep something cold

Explanation:

7 0
3 years ago
Of the molecules below, the bond in __________ is the most polar. hbr hi hcl hf
Black_prince [1.1K]
<span>There's a trend in electronegativity. The bottom left of periodic table is the lowest (0.7) and the upper right is the highest (4.0). The most polar is the greatest difference in electronegavity. hbr- 1~ , hi- 0.5~ ,hcl - 1.3~ , hf-1.8 so,hf is the answer</span>
7 0
3 years ago
PLS HELP DECODE THIS<br><br> The element symbol for Potassium: (B2)
Alex777 [14]

Answer:

It the letter K

Explanation:

6 0
2 years ago
If 2.4 g of n2 gas has a volume of 0.40 l and a pressure of 6.6 atm , what is its kelvin temperature?
Nesterboy [21]

To solve for the absolute temperature, we assume ideal gas behaviour so that we use the equation:

PV = nRT

or T = PV / nR

 

So calculating:

T = [6.6 atm * 0.40 L] / [(2.4g / 28g/mol) * 0.08205746 L atm / mol K]

<span>T = 375.35 K</span>

8 0
3 years ago
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