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Zielflug [23.3K]
4 years ago
14

Question 1 of 10

Chemistry
1 answer:
Natalka [10]4 years ago
5 0

Answer:

C

Explanation:

A- incorrect, not in alphabetical order

B- incorrect, symbol for salt in NA not SA

C- correct

D- incorrect, not based on discovery

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5. Calculate the mass percent of carbon in C3H8
Anuta_ua [19.1K]

Answer: How to calculate the mass percent by using these instructions

1.The molar mass is the mass of a given chemical element or chemical compound (g) divided by the amount of substance (mol).

2.The molar mass of a compound can be calculated by adding the standard atomic masses (in g/mol) of the constituent atoms.

Explanation:

7 0
3 years ago
Given a certain chemical reaction the change of enthalpy is -91.8 kj/mol. The change of entropy is -198 j/k per mole. At what te
shusha [124]

Explanation:

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7 0
3 years ago
In the reaction mechanism below, which substance is acting like a catalyst and is it homogeneous or heterogeneous?
sesenic [268]
Cl2 is acting like a catalyst because it came out in a same state.
and it's homogeneous reaction because they are all gases.
3 0
3 years ago
Franklin Roosevelt promised the American people a "new deal," a pledge he made actually before he was elected, at the Democratic
Minchanka [31]

The New Deal program was to help the American economy recover from the Great Depression.

<h3>Who was Franklin Roosevelt?</h3>

Franklin Delano Roosevelt was an American politician and attorney who served as the 32nd president of the United States from 1933 until his death in 1945.

Roosevelt promised the American people a "New Deal" if he was elected president in 1932. The goal of this New Deal program was to help the American economy to recover from the Great Depression.

Roosevelt's deal was based on providing economic relief to citizens, reforming institutions that failed during the early 1930's, and helping the overall economy to recover. This popular program lead FDR to be elected president 4 times.

Learn more about Franklin Roosevelt here:

brainly.com/question/8333337

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4 0
2 years ago
Normally the systemic arterial blood has a po2 of about _____ mm hg, a pco2 of about _____ mm hg, and a ph of _____.
erica [24]
Normally the systemic arterial blood has a pO₂ of about 75-100 mmHg, a pCO₂ of about 35-45 mmHg, and a pH of 7,35-7,45.
4 0
3 years ago
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