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3 years ago

Two chlorine atoms are held together by this bond

Chemistry

1 answer:

BARSIC [14]3 years ago

7 0

Ionic bond ?? i dont think so ? ?

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I’ll mark you brainley if you help me figure out which answer it is!!!

Stolb23 [73]

Answer:

Explanation:

A chemical change happens when one chemical substance is transformed into one or more different things , such as when iron becomes rust so

B: Acids turn the indicator red, pink, orange, and yellow, while bases turn it green based on what it reactions with or comes in contact with so b is maybe

c is wrong

and d a physical change, will technically yes and no there should have not been a smell afterwards so the only really choose that makes sense here is A

5 0

3 years ago

Data collected that describes the quality of the data set is called _______ data.

Nitella [24]

Answer:

1. Qualitative.

2. Comparative investigation.

3. Mode.

Explanation:

1. Data collected that describes the quality of the data set is called qualitative data. This data type are non-numerical in nature i.e they are categorical. Some examples are excellent, poor, gender, religion etc.

2. An investigation where you compare objects to find a relationship is a comparative investigation. For example, a researcher trying to find out which bag is heavier by determining their weight.

3. If the number 5 occurs with the most frequency in the data set, it is called the mode.

For example, given A = (1, 5, 2, 5, 1, 5 4, 5). The mode is 5 because it appeared the most i.e four (4) times.

3 0

3 years ago

File:

givi [52]

Ummm I just need to answer questions sorry!!!

8 0

3 years ago

What element has a half-life = to 64

Virty [35]

The best answer is the isotope of strontium which is strontium-85. It has a half-life of about 64 days. The metal strontioum has four stable, naturally occurring isotopes which includes 84Sr (0.56%), 86Sr (9.86%), 87Sr (7.0%) and 88Sr (82.58%).

5 0

3 years ago

For each of the esters provided, identify the alcohol and the carboxylic acid that reacted.

Veronika [31]

Answer:

52. The alcohol USED => methanol, CH3OH

The carboxylic acid USED => propanoic acid, CH3CH2COOH.

53. The alcohol USED => Ethanol, CH2CH3OH

The carboxylic acid USED => Formic acid, HCOOH.

Explanation:

52. To obtain Methyl propanoate, CH3CH2COOCH3, we simply react propanoic, CH3CH2COOH and methanol, CH3OH together as shown below:

CH3CH2COOH + CH3OH —> CH3CH2COOCH3 + H2O

The alcohol used: methanol, CH3OH

The carboxylic acid used: propanoic acid, CH3CH2COOH.

53. To obtain Ethyl methanoate, HCOOCH2CH3, we simply react

Formic acid, HCOOH and ethanol, CH3CH2OH together as show below:

HCOOH + CH3CH2OH —> HCOOCH2CH3 + H2O

The alcohol USED => Ethanol, CH2CH3OH

The carboxylic acid USED => Formic acid, HCOOH.

7 0

3 years ago