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iren2701 [21]
3 years ago
15

Please answer asap need it by Wednesday morning

Chemistry
1 answer:
yarga [219]3 years ago
4 0
The answer to this problem is quite simple, it’s 9
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The number of protons + number of neutrons is<br> equal to the
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5 0
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Olive oil has a density of 0.92 g/mL. How much would 1 liter of olive oil weigh in grams?
svp [43]
Dimension analysis is to be used to solve this problem. First convert 1L to milliliters. That is equivalent to 1000 ml. Then by dimension analysis, multiply the volume ( 1000ml) to the density of oil (0.92 g/ml) resulting to the answer: 920 grams. 
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"Given a block of frozen salt water, how could you separate
cricket20 [7]

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Explanation:

4 0
3 years ago
35.2 J of heat is
ruslelena [56]

The specific heat : c = 0.306 J/g K

<h3>Further explanation</h3>

Given

Heat = 35.2 J

Mass = 16 g

Temperature difference : 7.2 K =

Required

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Solution

Heat can be calculated using the formula:  

Q = mc∆T  

Q = heat, J  

m = mass, g  

c = specific heat, joules / g ° C  

∆T = temperature difference, ° C / K  

Input the value :

c = Q / m.∆T  

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How demanding is lime and cement in our world's economy?
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<span> Cement products are essential for construction and civil engineering, while lime is irreplaceable for the steel industry, as well as construction materials, paints, plastics, and rubber.</span>
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