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laiz [17]
3 years ago
13

Determaine the Ph of a .0065m Ba(OH)2 solution

Chemistry
1 answer:
Viktor [21]3 years ago
6 0

you sjowkwowjsnskoawjajia

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Beth has a one-day-old baby daughter. When Beth puts her finger in the baby’s hand, the baby grasps her finger. Which statement
Nina [5.8K]

Answer:

The baby`s reflex to grab is an innate behavior.

It`s not B because if the baby is 1 day old it`s not going to 'remember'.

It`s not C because it hasn`t really 'learned' anything.

It`s not D because babies can`t sense heat like a snake or something. -_-

Hope that helps

I also love the pfp

7 0
3 years ago
Read 2 more answers
There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. In
Scorpion4ik [409]

Answer:

The net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide is -470.4 kJ/mol.

Explanation:

Step 1 : Calcium carbide and water react to form acetylene and calcium hydroxide

CaC_2(s)+2H_2O(g)\rightarrow

             C_2H_2(g)+Ca(OH)_2(s),\Delta H_1=-414 kJ..[1]

Step 2 : Acetylene, carbon dioxide and water react to form acrylic acid

6C_2H_2(g)+3CO_2(g)+4H_2O(g)\rightarrow 5CH_2CHCOOH(g),\Delta H_2=132 kJ..[2]

Using Hess's law:

[1] × 6 + [2]

6CaC_2(s)+16H_2O(g)+3CO_2\rightarrow 5CH_2CHCOOH(g)+6Ca(OH)_2(s),\Delta H_3=?

\Delta H_3=6\times \Delta H_1+\Delta H_2

\Delta H_3=6\times (-414 kJ)+132 kJ=-2352 kJ

The energy released on formation of 5 moles of acrylic acid = -2352 kJ

The energy released on formation of 1 moles of acrylic acid :

=\frac{-2352 kJ}{5 mol}=-470.4 kJ/mol

Hence, the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide is -470.4 kJ/mol.

5 0
3 years ago
How can you determine an object mechanical energy
Dafna1 [17]
Objects have mechanical energyif they are in motion and/or if they are at some position relative to a zero potential energy position (for example, a brick held at a vertical position above the ground or zero height position). A moving car possesses mechanical energydue to its motion (kineticenergy).
7 0
3 years ago
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11. The strength of a force is measured in
dem82 [27]

Answer:

In units.

Explanation:

Such as newtons or pounds.

4 0
3 years ago
What is the reaction between an acid and a base
galina1969 [7]
They create salt when put together
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