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Afina-wow [57]
3 years ago
9

Which is an example of a base?a(lemon juice b(baking soda c(an insolator d( water

Chemistry
1 answer:
bija089 [108]3 years ago
3 0

Answer:

b) Baking soda

Explanation:

Baking soda is sodium hydrogen carbonate, NaHCO₃.

It reacts with water according to the equation

NaHCO₃ + H₂O ⇌ H₂CO₃ + NaOH

Thus, baking soda is a base because it increases the concentration of hydroxide ions in water.

<em>Water</em> is <em>neutral</em>.

<em>Lemon juice</em> is an <em>acid</em> because it contains citric acid.

An <em>insulator </em>is a substance that does not conduct electricity. Insulators are <em>neither acidic nor basic</em>.

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Adding more baking soda and vinegar to the bag in the Air Bag Lab resulted in faster production of gaseous products True False
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Answer:

True

Explanation:

The more of each substanse that you add to the bag will cause it to produce faster and more gas.

5 0
3 years ago
Which of the following has a mass of 10.0 g?
Serjik [45]

Answer:

a.  0.119mol Kr

Explanation:

To solve this problem, we must understand that;

     Mass  = number of moles x molar mass

Molar mass of Kr  = 83.3g/mol

                        Ar = 40g/mol

                        He = 4g/mol

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a0.119 mol Kr               mass  = 0.119 x 83.3 = 9.9g

b 0.400 mol Ar             mass  = 0.4 x 40  = 16g

C 1.25 mol He               mass  = 1.25 x 4  = 5g

d 2.02 mol Ne              mass  = 2.02 x 20.18  = 40.8

Krypton is the answer

5 0
3 years ago
A molecule of H2SO4 contains how many atoms?
Margaret [11]

Answer:

2 hydrogen atom, 1 sulfer atom, and 4 oxygen atoms.

6 0
3 years ago
Values for the molar mass of nitrogen, oxygen, and nitrogen dioxide
CaHeK987 [17]

Answer:

n=N/Na

n =  \frac{8.23 \times {10}^{22} }{6.02  \times {10}^{23} }  = 0.1367 \: mol

answer: 0.14 mol

Explanation:

5 0
3 years ago
Who controlled the distribution of agricultural products within a Mississippian community?
Sunny_sXe [5.5K]

Answer:

The chiefs

Explanation:

hope my answers is helpful

5 0
3 years ago
Read 2 more answers
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