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1 year ago

I would really appreciate someone could answer this question for mee! I will mark brainliest aswell. :)

Chemistry

2 answers:

svp [43]1 year ago

4 0

Answer:

Explanation:

mass is like matter it cant be created or destroyed so mass stays the same.

Temka [501]1 year ago

3 0

Answer:

C) It is equal to the total mass of the products.

Explanation:

The law of conservation of mass states that in a chemical reaction, the total mass of reactants is equal to the total mass of products.

- profparis

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A two-liter soft drink bottle can withstand apressure of

larisa86 [58]

Explanation:

According to the ideal gas equation, PV = nRT.

where, P = pressure, V = volume

n = no. of moles, R = gas constant

T = temperature

Also, density is equal to mass divided by volume. And, no. of moles equals mass divided by molar mass.

Therefore, then formula for ideal gas could also be as follows.

P = $\frac{mass}{volume \times molar mass} \times RT$

or, P = $\frac{density}{\text{molar mass}} \times RT$

Since, density is given as 0.789 g/ml which is also equal to 789 g/L (as 1000 mL = 1 L). Hence, putting the given values into the above formula as follows.

P = $\frac{density}{\text{molar mass}} \times RT$

= $\frac{789 g/l}{46.06 g/mol} \times 0.0821 L atm/mol K \times 373 K$

= 525 atm

As two-liter soft drink bottle can withstand a pressure of 5 atm and the value of calculated pressure is 525 atm which is much greater than 5 atm.

Therefore, the soft drink bottle will obviously explode.

4 0

3 years ago

Consider the biochemical pathway: A + E1 –> B + E2 –> C (Note that A, B, and C are molecules in the pathway, E1 is enzyme

MAVERICK [17]

Answer:

The compound that will accumulate is B.

Explanation:

Enzymes in any biochemical process are the protein molecules that speed up the rate of the biological reaction. It lowers down the activation energy of the reactant molecules.

Since from the question:

A + E1 –> B + E2 –> C

Given that A, B and C are the molecules in the pathway and E1 and E2 are the enzymes.

This means that A undergoes some biological reaction in which E1 is acting a catalyst to give B and which further undergoing another biological reaction to give C in the presence of enzyme E2.

Since, E2 is inactive,

A will form B but B will not be able to undergo further reaction and thus, C can not be formed.

Thus A is consumed and C is not formed. The compound that will accumulate is B.

5 0

3 years ago

Should carbon dioxide be considered to be a pullutant

Kipish [7]

Answer:

yes, as it helps to increase global warming and it's main cause is deforestation

Explanation:

as carbon dioxide is a greenhouse gas. It helps to increase global warming

7 0

2 years ago

How does the atomic radius increase?

Helen [10]

Answer:

increases as you move down a group as the number of electrons increases. Therefore, the atomic radius increases as the group and energy levels increase

Explanation:

5 0

2 years ago

Answer A B C and D please for my chemistry hw

r-ruslan [8.4K]

Answer: The equations are provided below.

Explanation:

Skeleton equations are defined as the equations which simply indicate the molecules that are involved in a chemical reaction. These equations are unbalanced equations.

Balanced equations are defined as the chemical equation in which number of individual atoms on the reactant side must be equal to the number of individual atoms on the product side.