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lapo4ka [179]
3 years ago
11

Plete the following problems significant figures: 6 × 0.30​

Chemistry
1 answer:
jeka57 [31]3 years ago
3 0
6= Only the digits 1 and 6 are the actual measured values. Therefore we have only 2 significant figures.

0.3= Zeros used as placeholders are not significant. Zeros that come before non-zero integers are never significant. Example 5: The zeros in 098, 0.3, and 0.000000000389 are not significant because they are all in front of non-zero integers. c. If the zeros come after non-zero integers and are followed by a decimal point, the zeros are significant.
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Give at least two ways to know if a reaction is endothermic or exothermic
mafiozo [28]

Answer:

An exothermic reaction is a chemical reaction that releases energy by light or heat. Endothermic reaction is a chemical reaction that absorbs energy or heat from its surroundings

Explanation:

5 0
3 years ago
What 2 instruments are commonly used to measure air pressure?
levacccp [35]
<span>I think it is the barometer and aneroid barometer</span>
8 0
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Soil erodes naturally, but human activities can greatly speed the rate of soil erosion, leading to diverse ecological effects an
igor_vitrenko [27]

Answer:

Methods of soil conservation are listed below.

Explanation:

The major sources of soil erosion include water,wind and tillage. In order to mitigate or prevent soil erosion, some of the following techniques can be implemented:

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6 0
3 years ago
What is the density of a book whose mass is 1,800 g and whose volume is 300 cm3?
IRISSAK [1]
I think 0.54 kilogram
7 0
3 years ago
Read 2 more answers
Please helppp asaappppppp
Zanzabum

Answer:

B. s, p, d, f

Explanation:

These things are often referred to as suborbitals and you normally have s,p,d,f.

S has 1 two orbitals

P has 3 orbitals

D has 5 orbitals

F has 7 orbitals

and each orbital can house 2 electrons

8 0
4 years ago
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