![subject](/tpl/images/cats/himiya.png)
Chemistry, 17.12.2021 06:10 BARRION1981
in this diagram of a rocket launching what does the rocket have to reach in order to go into outer space?
![ansver](/tpl/images/cats/User.png)
Answers: 1
Another question on Chemistry
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 10:30
Consider the following reactions. (note: (s) = solid, (l) = liquid, and (g) = gas.) mg(s) + ½o2(g) → mgo(s) + 146 kcal/mole h2(g) + ½o2(g) → h2o(g), δh = -57.82 kcal/mole what type of reaction is represented by the previous two examples?
Answers: 3
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 12:20
Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.
Answers: 1
![question](/tpl/images/cats/himiya.png)
Chemistry, 22.06.2019 16:30
How many moles of sulfuric acid (h2so4) are needed to react completely with 6.8 moles of lithium hydroxide (lioh)? 2lioh + h2so4 → li2so4 + 2h2o a. 3.4 mol h2so4b. 6.8 mol h2so4 c. 10.2 mol h2so4 d. 13.6 mol h2so4
Answers: 3
You know the right answer?
in this diagram of a rocket launching what does the rocket have to reach in order to go into outer s...
Questions
![question](/tpl/images/cats/himiya.png)
Chemistry, 14.01.2021 20:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 14.01.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 14.01.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 14.01.2021 20:20
![question](/tpl/images/cats/en.png)
English, 14.01.2021 20:20
![question](/tpl/images/cats/User.png)
Engineering, 14.01.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 14.01.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 14.01.2021 20:20
![question](/tpl/images/cats/mkx.png)
Arts, 14.01.2021 20:20
![question](/tpl/images/cats/istoriya.png)
History, 14.01.2021 20:20
![question](/tpl/images/cats/mat.png)
Mathematics, 14.01.2021 20:20
![question](/tpl/images/cats/biologiya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 14.01.2021 20:20
![question](/tpl/images/cats/en.png)
English, 14.01.2021 20:20
![question](/tpl/images/cats/health.png)
Health, 14.01.2021 20:20