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labwork [276]
3 years ago
7

A good hypothesis allows you to make a testable prediction. Which of the following is an example of a good, testable prediction?

Chemistry
1 answer:
Elina [12.6K]3 years ago
8 0
Your answer would be B. If I add salt to ice cubes, they will melt faster.
I did this and got it right.
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A single atom of an element has 21 nutrons 20 electtons and 20 protons which element is it
guajiro [1.7K]

your element would be calcium


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4 years ago
Determine the number of protons, neutrons and electrons in each of the following:
Kisachek [45]
Cu+ p=29 e=28 n=34
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5 0
3 years ago
A vertical column within the periodic table represents a family or ___
LekaFEV [45]

The answer would be a Group.

8 0
3 years ago
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Please help!! 20 points!! Posted this previously and forgot to change it to 20 points but it is now
spayn [35]

Answer:

0.571 mol

Explanation:

Given data:

Number of moles of NaHCO₃ = 0.571 mol

Number of moles of CO₂ produced = ?

Solution:

Chemical equation:

NaHCO₃ + C₃H₆O₃   →     CO₂  + C₃H₅NaO₃ + H₂O

Now we will compare the moles of CO₂ with NaHCO₃ from balance chemical equation.

                             NaHCO₃          :            CO₂

                                    1                :               1

                                 0.571            :            0.571

So number of moles of CO₂  produced are 0.571.

3 0
3 years ago
Read 2 more answers
Which of the reactants or products is a gas<br><br> c4h10<br><br> o2<br><br> co2
Alex

Answer:

co2

Explanation:

because carbon is a gas product

7 0
3 years ago
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