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3 years ago

6

Write the complete balanced equation for Manganese & sulfuric acid --> Manganese (II) sulfate & water & sulfur di

oxide
no spaces
no subscripts
no 1's for coefficients

WILL GIVE BRAINLIEST!

1 answer:

jok3333 [9.3K]3 years ago

7 0

Answer:

I kinda forgot. I'm sorry if I didn't answer your question.

Explanation:

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Predict how the addition of a catalyst would affect the rate of the reaction below, and explain your prediction H2 (g) + I2 (g)

Fynjy0 [20]

A catalyst is a chemical substance that hastens the chemical reaction. This does not participates in the creating the product(s) but allows it to be formed easily. With this, it is now known that the rate of the reaction becomes relatively higher compared to the uncatalyzed reactions.

Therefore, the answer to this item is the rate of the reaction becomes faster.

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What are two ways in which white blood cells fight pathgons that have entered the body

crimeas [40]

Answer:

Answer c i believe

Explanation:

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3 years ago

9.8 x 10^-6 regular notation

topjm [15]

Answer:

0.0000098 should be the answer

Explanation:

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3 years ago

Given:1 inch = 2.54 cm (exact)1 pound = 454 g1 Liter = 1.0b quarts1 foot = 12 inches1 galion = 4 quarts1 pound = 16 ouncesCalcul

svet-max [94.6K]

We have to convert 0.18 km into feet

First, we need to know the conversions:

1 inch = 2.54 cm (exact)

1 pound = 454 g

1 Liter = 1.0b quarts

1 feet = 12 inches

1 galion = 4 quarts

1 pound = 16 ounces

0.18 km x (1 feet/12 inches) x (1 inch/2.54cm) x (1000 m/1 km) x (100 cm/1 m) = 590 ft

Answer: 590 ft (2 significant figures)

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1 year ago

A 100-gram sample of material requires 1220 calories of heat energy to raise its temperature from 20 0C to 80 0C. What is the sp

SashulF [63]

Taking into account the definition of calorimetry, sensible heat and latent heat, the specific heat capacity of the material is 0.203 $\frac{calories}{gC}$ .

<h3>Calorimetry</h3>

Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.

Sensible heat is defined as the amount of heat that a body absorbs or releases without any changes in its physical state (phase change).

The amount of heat a body receives or transmits is determined by:

Q = c× m× ΔT

where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.

<h3>Specific heat capacity of the material</h3>

In this case, you know:

Q= 1220 calories
c= ?
m= 100 g
ΔT=Tfinal - Tinitial= 80 C - 20 C= 60 C

Replacing in the definition of amount of heat:

1220 calories= c× 100 g× 60 C

Solving:

c= 1220 calories÷ (100 g× 60 C)

<u><em>c= 0.203 </em></u> $\frac{calories}{gC}$

Finally, the specific heat capacity of the material is 0.203 $\frac{calories}{gC}$ .

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