All categories

3 years ago

.The base which is used in space ships and submarine is

Chemistry

1 answer:

s344n2d4d5 [400]3 years ago

8 0

Answer:

d . al of these

Explanation:

all of that are used when you in spaceship

You might be interested in

The gasses in a hair spray can are at temperature 300k and a pressure of 30 atm, it

Sergeeva-Olga [200]

Answer:

900 K

Explanation:

Recall the ideal gas law:

$\displaystyle PV = nRT$

Because only pressure and temperature is changing, we can rearrange the equation as follows:
$\displaystyle \frac{P}{T} = \frac{nR}{V}$

The right-hand side stays constant. Therefore:

$\displaystyle \frac{P_1}{T_1} = \frac{P_2}{T_2}$

The can explodes at a pressure of 90 atm. The current temperature and pressure is 300 K and 30 atm, respectively.

Substitute and solve for <em>T</em>₂:

$\displaystyle \begin{aligned} \frac{(30\text{ atm})}{(300\text{ K})} & = \frac{(90\text{ atm})}{T_2} \\ \\ T_2 & = 900\text{ K}\end{aligned}$

Hence, the temperature must be reach 900 K.

7 0

3 years ago

In a solution the solute is the substance present in the greatest amount true or false

kati45 [8]

Solute is something that is being dissolved { ex : sugar , salt}

Solvent is something that has ability to dissolve things { ex : water}

False because the solvent is present in larger amounts...

3 0

4 years ago

Read 2 more answers

What advice would you give to a person who handles hydrogen and oxygen in their workplace?I think I have an idea of what advice

joja [24]

Regard the principle of utilization of two gas.

Make a consistent control of hardware containing gas.

Make a consistent control of weight diminishing valves giving gas.

No smoking zone.

8 0

3 years ago

Which atom has only one pair of electrons in its outermost energy level?

inysia [295]

Answer:

i belive A, i cold be wrong tho, pls tell me if im right if you fully find out

ght. Explanation:

8 0

3 years ago

Under certain conditions, the substance ammonium chloride can be broken down to form ammonia and hydrogen chloride. If 29.4 gram

lina2011 [118]

Answer: 20.0 g of hydrogen chloride must simultaneously be formed

Explanation:

The balanced chemical reaction is :

$NH_4Cl\rightarrow NH_3+HCl$

According to the law of conservation of mass, mass can neither be created nor be destroyed. The mass on reactant side must be equal to the mass on product side.

Thus mass of reactants = mass of products

Given : mass of ammonium chloride = mass of reactants = 29.4 g

mass of ammonia = 9.4 g

mass of products = mass of ammonia + mass of hydrogen chloride

9.4 g +mass of hydrogen chloride = 29.4 g

mass of hydrogen chloride = 20.0 g

5 0

3 years ago