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Vesnalui [34]
3 years ago
10

Brainless if correct

Chemistry
2 answers:
Talja [164]3 years ago
6 0
Answer: D
explaination: i did this test and got this question correct
miv72 [106K]3 years ago
5 0

Answer:

D

Explanation:

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Please help me out with these questions please!!!
iogann1982 [59]
Answer to the first one is that they are brittle. This is not true because they have strong bonds
7 0
3 years ago
The half reaction of an oxidation-reduction shows that iron gains electrons. What does this electron gain mean or iron?
ale4655 [162]

Answer:

C. its reduced

Explanation:

4 0
3 years ago
Which of the fields below are significantly involved in food
Korolek [52]

Answer:

D.

Explanation:

Genetic Engineering is a huge part in manipulating a foods property. Chemical engineering mostly the science with numbers in foods.

Biology is literally the life of the food.

6 0
3 years ago
Read 2 more answers
Hydrogen is manufactured on an industrial scale by this sequence of reactions:
UNO [17]

Answer:

Explanation:

CH₄ +  H₂O(g)    ⇒ CO(g)+3H2(g)

Equilibrium constant

K₁ = [CO][H₂]³ / [CH₄][H₂O]

CO(g)+H₂O(g) ⇒ CO₂(g) + H₂(g)

Equilibrium constant

K₂ =  [CO₂][H₂] / [CO][H₂O]

CH₄(g)+2H₂O(g)  ⇒  CO₂(g)+4H₂(g)

Equilibrium constant

K =   [CO₂][H₂]⁴ /[CH₄][H₂O]²

=  [CO][H₂]³ / [CH₄][H₂O] X [CO₂][H₂] / [CO][H₂O]

K₁ x K₂

K = K₁ x K₂

4 0
3 years ago
rock with a mass of 70 grams is dropped into a graduated cylinder with 30 mL of water. The water level rose. Whats the density o
Natali5045456 [20]

The density of the rock in g/mL : 14 g/ml

Complete question :

A rock with a mass of 70 grams is dropped into a graduated cylinder with 30 mL of water in it. The water level rose to 35 mL calculate the density of the rock in g/mL

<h3>Further explanation</h3>

Density is a quantity derived from the mass and volume  

Density is the ratio of mass per unit volume  

Density formula:  

\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}

ρ = density  

m = mass  

v = volume  

mass of rock = 70 g

Volume of the rock : 35 - 30 = 5 ml

So the density :

\tt \rho=\dfrac{70}{5}\\\\\rho=14~g/ml

6 0
3 years ago
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