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3 years ago

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Elements that do not have full outer electron shells will donate, share, or take from other atoms. Choose the items that have th

e correct binary ionic formula. (brainliest)

1 answer:

Gnesinka [82]3 years ago

7 0

Answer:

Ok...

Answer: YTH/JYG

Explanation:

AI+ZN+H=YTH

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If the H3O is 4.950 x 10-12 what is the ph?

romanna [79]

Answer:

pH = 11.3

Explanation:

From the question given above, the following data were obtained:

Concentration of hydronium ion [H₃O⁺] = 4.950×10¯¹² M

pH =.?

The pH of a solution is defined by the following equation:

pH = –Log [H₃O⁺]

Thus, with the above formula, we can obtain the pH of the solution as follow:

Concentration of hydronium ion [H₃O⁺] = 4.950×10¯¹² M

pH =.?

pH = –Log [H₃O⁺]

pH = –Log 4.950×10¯¹²

pH = 11.3

8 0

3 years ago

What is the name of this compound?

Monica [59]

Answer:

THERE IS NOTHING MENTION HERE HOW CAN ANYONE KNOW ABOUT IT?]

Explanation:

7 0

3 years ago

PLEASE HELP AND EXPLAIN!Calculate the energy required to heat 187.0 g of ammonia from 36.1 °C to 52.9 °C. Assume the specific he

Alenkinab [10]

Answer:

$E=1.48x10^4J$

Explanation:

Hello!

In this case, since the energy implied in a heating process is computed by using the following equation:

$E=mC(T_f-T_i)$

Whereas m is the mass, C the specific heat and T the temperature. In such a way, by plugging in the given mass, specific heat and temperatures, we obtain the following energy:

$E=187.0g*4.703\frac{J}{g\°C} (52.9\°C-36.1\°C)\\\\E=1.48x10^4J$

Considering that the specific heat can by used by unit of °C or K because their difference is equivalent.

Regards!

3 0

2 years ago

Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4 kilometers away. It takes Amy 40 minutes t

Inessa [10]

2 m/s

Explanation:

The distance to school is 14.4 kilometers which are equal to 14400 meters.

Amy takes 40 minutes which are equal to 40 × 60 = 2400 seconds to arrive at school.

Bill takes 40 + 20 = 60 minutes which are equal to 60 × 60 = 3600 seconds to arrive at school.

Amy’s average speed = distance (m) / time (s)

Amy’s average speed = 14400 m / 2400 s = 6 m/s

Bill’s average speed = 14400 m / 3600 s = 4 m/s

How much faster (in meters/second) is Amy’s average speed for the entire trip?

Amy’s average speed - Bill’s average speed = 6 m/s - 4 m/s = 2 m/s

Learn more about:

average speed

brainly.com/question/10436437

#learnwithBrainly

3 0

3 years ago

When phosphorus reacts with chlorine, phosphorus trichloride is formed according to the following equation: ___P4(s) ___Cl2(g) →

Slav-nsk [51]

Answer:

P4 + 6Cl2 ------> 4PCl3

145.59 g of Cl.

Explanation:

First to all, let's balance the equation. The principle for balance an equation, try to see this like a balance of two plates. You need to have the same numbers of atoms of both sides of the plates to equilibrate the balance.

In this case, we have 4 atoms of P, 2 of Cl on one side, and for the other side we have 1 atom of P and 3 of chlorine.

To balance this, we balance first the P on the right side putting a leading 4, and we have 4PCl3.

Now this 4, is also added to the Cl, and it's multiplied, so we have 12 Cl in total on the right side. To balance this, we put a leading 6 on the left side in the Cl.

The final balanced equation would be

P4 + 6Cl2 ------> 4PCl3

Now that we have the balanced equation, let's calculate the grams of Cl needed:

In this case, first, let's calculate the mole of P used in the 21.2 g. We need the atomic weight of P, which is 30.97 g/mol and the Cl is 35.45 g/mol

moles of P = g/AW = 21.2 / 30.97 = 0.6845 moles

With the balanced equation, we can do a relation between P and Cl.

If 1 mole P reacts with 6 moles of Cl,

then 0.6845 mole P reacts with X moles of Cl.

Solving for X:

X = moles of Cl = 0.6845 * 6 = 4.107 moles

Finally for the grams of Cl:

g = 4.107 * 35.45 = 145.59 g of Cl.

4 0

3 years ago