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Veronika [31]
3 years ago
6

Calculate the number of total atoms in 195 grams of Ni(OH)2.

Chemistry
1 answer:
Anni [7]3 years ago
6 0

1.267 x 10 ^ 24 is the total number of atoms

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A solution with a pH value between 1 and 6
lozanna [386]

Answer:

One possible answer could be lemon juice

Explanation:

We had to do a water test, and I was looking up what pH levels were. Then I learned about it in school, so I know a thing or two about it :)

Possible other answers include stomach acid and cola.

Hope this helps!!

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On the cooling curve below, between points Dand Ethe substance is changing from
Irina-Kira [14]
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Determine the total mass of ethanol produced when 270 g of glucose reacts completely to form ethanol and 132 g of carbon dioxide
Mekhanik [1.2K]

Answer:

138g

Explanation:

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4 0
3 years ago
How much energy must be added to a 2-kg piece of wood with a specific heat
lesya692 [45]

Answer:

A. 140,800 J

Explanation:

Specific heat of a material is defined as the amount of energy required to increase in 1°C 1kg of the material. <em>For wood there are required 1760J perkg per °C.</em>

The equation is:

Q = C*m*ΔT

<em>Where Q is heat in Joules,</em>

<em>C is specific heat (1760J/kg°C),</em>

<em>m is mass (2kg)</em>

<em>ΔT is change in temperature (50°C - 10°C = 40°C)</em>

Replacing:

Q = 1760J/kg°C*2kg*40°C

Q = 140800J

Right option is:

<h3>A. 140,800 J </h3>

<em />

6 0
3 years ago
What is the function of a hypothesis in the scientific inquiry process?
ioda
<span>The function of a hypothesis is to create a testable statement. In that, a hypothesis can be followed up by a experiment. Hypotheses can be used in order to determine if there is a result of an affect, this is the independent variable, what you get out is the dependent variable, or the result. There is a control that is used generally as a means to test your hypothesis to a standard.</span>
5 0
4 years ago
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