All categories

3 years ago

I need help please help me !

Chemistry

1 answer:

kirill [66]3 years ago

3 0

Answer:

the rust formed because of the water sitting in sied a metal bowl for long time but they can fix this if they get filters

Explanation:

You might be interested in

The usual units of density are : cm3/ g cm2/g g/cm Nm

Ad libitum [116K]

The usual units of density are g/cm.

You may have also seen g/mL used for density. Keep in mind that 1 cm = 1 mL.

3 0

3 years ago

Read 2 more answers

Acetaldehyde and butanoic acid must have the same

ANTONII [103]

Answer:

dsvcsdc

Explanation:

7 0

3 years ago

A reaction at -6.0 °C evolves 786. mmol of sulfur tetrafluoride gas. Calculate the volume of sulfur tetrafluoride gas that is co

borishaifa [10]

Answer:

V of Sulfur tetrafluoride is 17.2 L

Explanation:

Given data;

T = -6°C = 267K [1° C = 273 K]

n = 786 mmol of SF4 which is 0.786 mol

P = 1 atm

from ideal gas law we have

PV = nRT

where n is mole, R is gas constant, V is volume

$V = \frac{nRT}{P}$ $V = \frac{0.786 mol \times 0.082 atmL/mol K \times* 267K}{1atm} = 17.2 L$

V of Sulfur tetrafluoride is 17.2 L

6 0

3 years ago

Identify the following redox reactions by type. Check all that apply. (a) Fe + H2SO4 → FeSO4 + H2 combination decomposition disp

EastWind [94]

Answer :

(a) displacement reaction

(b) combination reaction

(c) disproportionation reaction

(d) displacement reaction

Explanation :

(a) The given balanced chemical reaction is,

$Fe+H_2SO_4\rightarrow FeSO_4+H_2$

This reaction is a single replacement reaction or displacement in which the the more reactive element (Fe) replace the less reactive element (H).

(b) The given balanced chemical reaction is,

$S+3F_2\rightarrow SF_6$

This reaction is a combination reaction in which the two reactants molecule combine to form a large molecule or single product.

(c) The given balanced chemical reaction is,

$2CuCl_2\rightarrow Cu+CuCl_2$

This reaction is a disproportionation reaction in which the chemical species gets oxidized and reduced simultaneously. It is also considered as a redox reaction.

(d) The given balanced chemical reaction is,

$2Ag+PtCl_2\rightarrow 2AgCl+Pt$

This reaction is a single replacement reaction or displacement in which the the more reactive element (Ag) replace the less reactive element (Pt).

7 0

3 years ago

5. Location A is in the center of a large desert. What factor could account for its low annual

Anna11 [10]

Given what we know about the mechanisms surrounding weather, we can confirm that Large deserts receive less rainfall due to the lack of bodies of water and "rainshadows".

Rainshadow is a term used to describe the effects of nearby mountains on the rainfall amounts of a desert. The mountain causes the air to rise greatly and lose moisture. This moisture is received by the mountain, which means that it does not reach the desert area.

Another limiting factor for the amount of rainfall received by deserts is the lack of bodies of water in the area. Once a desert is formed, it tends to lack large bodies of water. This limits the rainfall it receives given that there is no water nearby to evaporate and cause the formation of clouds.

To learn more visit:

brainly.com/question/1051337?referrer=searchResults

4 0

2 years ago