How does the economy influence energy source choices?

Answers

Answer 1
Answer: Our natural resources are limited and the economy (population) grows and there needs to be more fuels burned, more resources
 used to keep water, electricity and heat things as such to live

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Why is there a greater variety of compounds than of elements and atoms?

Answers

Despite the fact that there are over 100 elements .The elements containing  electron, proton neutron as well, could  be combined to create new things, making the possibilities unlimited.

What is elements?

A pure substance made up entirely of atoms with the same number of protons in each nucleus is known as an element.

What is electrons?

An electron is just a subatomic particle with a negative charge.  The energy levels of electrons in atoms are represented by spherical shells of different kinds of diameters. 

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because even though there are over 100 elements. all of those elements can combine into something else making the combinations endless.

Ca(OH)2 + H3PO4
Double Replacement Reaction

Answers

3Ca(OH)2 + 2H3PO4➡️Ca3(PO4)2+6H20

What is the molecular mass of HCI

Answers

Answer:

36.46 g/mol

pls mark brainlest

How does a solid become a liquid

Answers

 Well, one way a solid can turn into a liquid is by melting...
Lets say we have an ice cube... An ice cube, is a solid. And if that melts, what happens? Well,  It turns into a liquid...
 How does it melt, you may ask... Well, if you apply heat to the ice, then it turns into water, in which its a liquid.
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Hope this helped! Anymore questions, please feel free to ask!
The only way a solid can turn into a liquid is by melting. When you get a solid hot, the molecules bump around faster and harder until they start breaking apart and moving around each other; that's when a solid melts and becomes a liquid.
Hope this helps!

What is the answer to 4x - 16

Answers

it simply equals 4x-16.......
the expression is in lowest terms, so you can’t do anything else

Answer:-64

Explanation:

The failure to regulate the pH of the blood can affect the activity ofenzymes that clot blood
red blood cells that make antibodies
chlorophyll that carries oxygen in the blood
DNA that control starch digestion in the blood

Answers

pH of the blood have to be balanced always. Otherwise it will cause disorders in metabolic activities. Enzymes in our body are working at their optimum pH, if the blood pH is imbalanced, it will affect the functions of enzymes.

What is pH?

pH is the measure of H+ ion concentration in a solution. It measures how much acidic or basic the solution is. A pH of 7 implies the solution is neutral and pH greater than 7 is alkaline or basic and less than 7 is acidic solutions.

Mathematically pH is the negative logarithm of H+ ion concentration. Thus as the H+ concentration is higher higher will be the acidity of the solution.

Human blood have a normal pH of 7.35 - 7.45. This level of pH is maintained by the carbonate ions in blood. Any imbalance if occur in blood pH it will affect the metabolic activities.

Enzymes are bio-catalysts in our body and they are having an optimum pH and temperature to function. Therefore, an irregularity in pH of blood will affect the function of enzymes which clot blood. Thus option a is correct.

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Answer:

enzymes that clot blood

Explanation:

This is because enzymes are pH sensitive so sudden changes in pH levels make the enzymes non-functional. Therefore, here the enzymes that clot blood will fail if the pH of blood changes due to failure of regulation.