All categories

3 years ago

CORRECT ANSWER GETS BRAINEST! ✨

Chemistry

2 answers:

aniked [119]3 years ago

5 0

Answer:

The answer is Non-Metals

KatRina [158]3 years ago

4 0

it would be nonmetals

You might be interested in

A baseball is thrown a distance of 20 meters. What is its speed if it takes 0.5seconds to cover the distance

satela [25.4K]

The answer is that the baseball travels 40 miles per hour

4 0

3 years ago

What happens to your ribs when you inhale?

shepuryov [24]

All they do is simply expand when you inhale and contract when you exhale.

7 0

3 years ago

How many grams of CaF2 would be needed to produce 1.12 moles of F2?

zlopas [31]

Step 1 : Write balanced chemical equation.

CaF₂ can be converted to F₂ in 2 steps. The reactions are mentioned below.

I] $CaF_{2} + H_{2} SO_{4} -------> 2HF + CaSO_{4}$

II] $2HF -------> H_{2} + F_{2}$

The final balanced equation for this reaction can be written as

$CaF_{2} + H_{2} SO_{4} ---------> CaSO_{4} + H_{2} + F_{2}$

Step 2: Find moles of CaF₂ Using balanced equation

We have 1.12 mol F₂

The mole ratio of CaF₂ and F₂ is 1:1

$1.12mol F_{2} * \frac{1molCaF_{2}}{1molF_{2}} = 1.12molCaF_{2}$

Step 3 : Calculate molar mass of CaF2.

Molar mass of CaF₂ can be calculated by adding atomic masses of Ca and F

Molar mass of CaF₂ = Ca + 2 (F)

Molar mass of CaF₂ = 40.08 + 18.998 = 78.08 g

Step 4 : Find grams of CaF₂

Grams of CaF₂ = $1.12molCaF_{2} *\frac{78.08gCaF_{2}}{1mol CaF_{2}}$

Grams of CaF₂ = 87.45 g

87.45 grams of CaF2 would be needed to produce 1.12 moles of F2.

4 0

3 years ago

Read 2 more answers

The following mechanism has been proposed for the gas-phase reaction of chloroform (CHCl3) and chlorine:

shusha [124]

Answer:

Overall reaction equation is:

Cl2(g) + CHCl3(g) --> HCl(g) + CCl4(g)

The intermediates are Cl(g), CCl3(g).

Rate law= ka^1/2 c

Explanation:

This reaction is a non elementary reaction. A non elementary reaction is one that does not take place in a single reactive encounter. In other words, the reaction is comprised of many steps.

The overall reaction equation is the sum of all the reaction steps after all intermediates have been cancelled out. The rate law is obtained from the slowest step in the reaction sequence.

3 0

3 years ago

An element which forms an oxide that is a reactant in photosynthesis<br> (period 2)

docker41 [41]

Answer:

carbon dioxide gas

Explanation:

carbon dioxide gas is an element which forms and oxide that is a reactant in photosynthesis.

5 0

3 years ago

Read 2 more answers