<h2>
Answer:</h2>
A. 4.184.
B. 167360 cal or 700234.24 J.
C. 167.36.
<h3>
Explanation:</h3>
<u>A</u>. You can just Google this one, but the conversion is 1 cal = 4.184 J.
<u>B</u>. Specific heat equation is q = <em>mcΔT</em><em>, </em><em>m </em>being mass, <em>c </em>being specific heat capacity, and <em>ΔT </em>being change in temperature.
We know that <em>m = 2000 g</em>, <em>ΔT = 20 </em>(because we are told that it heats the water by 20 °C), <em>c = 4.184 </em>(because we are calculating it for water).
So, q = 2000 · 4.184 · 20 = 167360.
<u>C</u>. This answer makes sense because when you divide it by 1000 to get the Calories (what we use in real life), you get 167.36 which seems normal for a snack bar.
Hope this helps.
The three hypotheses that explain why being born in the United States
leads to a higher chance of developing allergies include the following:
- The weather patterns in the United States bring more allergens compared to other countries.
- Other factors which might influence why there are more children with allergies in the United States include climate, obesity, and the typical western diet with high amounts of processed foods.
- The hygiene hypothesis claims that children in the United States are not exposed to enough germs in their infancy and childhood to develop their immune system‘s properly.
Allergies are caused by a host of factors such as :
These factors is the reason why the chosen hypotheses are the most
appropriate.
Read more about Hypotheses here brainly.com/question/10854125
Answer:
there go my email
Explanation:
How are proteins built using the information provided by a molecule of RNA? ... RNA determines the sequence of amino acids in proteins and polypeptides by a two-step process: transcription of DNA produces mRNA in the nucleus, then translation of the mRNA to tRNA takes place in the ribosome in the cytoplasm.
Both designed a periodic table of elements- Mendeleev designed the first one in order of atomic mass and Moseley designed the modern one in order of atomic number. ... Isotope- Because of the notation and the 13 is not the atomic mass on the periodic table so it is the same element just a different form.
<span><span>The reaction is as follows:
C6H6 </span>+ HNO3 + H2SO4 ------------> </span>C6H5NO2<span> + H</span>2<span>O
(BENZENE) (NITRIC ACID)(CATALYST)
</span>NO2(+) is the electrophile that acctacks on the benzene ring in nitration process.