1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Burka [1]
2 years ago
13

Please help me, please thank tou

Chemistry
1 answer:
kvv77 [185]2 years ago
5 0
Two observations - The sky is cloudy, there is a light blue car.

Two inferences is - The cars are heading the same direction, it is a hot day outside.

Question - Where are they? On a beach?
You might be interested in
Using the following equation for the combustion of octane calculate the heat associated with the formation of 100.0 g of carbon
natali 33 [55]

Answer:

The right solution is "-602.69 KJ heat".

Explanation:

According to the question,

The 100.0 g of carbon dioxide:

= \frac{100.0 \ g}{114.33\  g/mole}

= 0.8747 \ moles

We know that 16 moles of CO_2 formation associates with -11018 kJ of heat, then

0.8747 moles CO_2 formation associates with,

= -\frac{0.8747}{16}\times 11018 \ KJ \ of \ heat

= -0.0547\times 11018

= -602.69 \ KJ \ heat

8 0
3 years ago
What are three possible problems with storing low level nuclear waste?​
ella [17]

Answer:

Diarrhea may caused

flies in the home which transfer germs

Kat one think your self

3 0
3 years ago
What controls the movement of material between the inside of the cell and the outside world?
den301095 [7]
The answer is Cell membrane
7 0
3 years ago
Read 2 more answers
Type the correct answer in the box. use numerals instead of words. a certain radioactive atom has 90 protons and 142 neutrons. i
PSYCHO15rus [73]

The mass number of the daughter atom formed from the alpha decay of a certain radioactive atom that has 90 protons and 142 neutrons is 228.

<h3>What is alpha decay?</h3>

Alpha decay of a radioactive material is the release of an alpha particle that posseses mass number of 4 and atomic number of 2.

According to this question, a certain radioactive atom that has 90 protons and 142 neutron undergoes alpha decay. This means that the mass number of the daughter atom will be as follows:

Mass number of radioactive atom = 142 + 90 = 232

Mass number of daughter atom = 232 - 4 = 228

Therefore, the mass number of the daughter atom formed from the alpha decay of a certain radioactive atom that has 90 protons and 142 neutrons is 228.

Learn more about mass number at: brainly.com/question/4408975

#SPJ4

3 0
2 years ago
Why does 4.03/0.0000035 = 1.2 x 106, instead of a different number of significant figures?
jasenka [17]

Explanations:- As per the significant figures rule, In multiplication and division, we go with least number of sig figs.

4.03 has three sig figs where as 0.0000035 has two sig figs only, The zeros in this number are not sig figs as they are just holding the place values. As the least number of sig figs here is two, the answer needs to be reported with two sig figs only.

\frac{4.03}{0.0000035}=1.2*10^6



4 0
4 years ago
Other questions:
  • Help me please!!!!!!!!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • Please help me,ASAP​
    13·1 answer
  • What is the ground state electron configuration for Cr2+ , Cu2+ and Co3+?
    7·1 answer
  • Two or more compounds that have the same molecular formula, but different arrangements of their atoms, are called_____ isomers.
    13·1 answer
  • If the bucket were left outside on a hot day but brought inside before any evaporation occurred, how would the mass be affected?
    10·2 answers
  • Question 10 of In which way does a balanced chemical equation demonstrate the conservation of matter? A. It shows the same numbe
    12·2 answers
  • How are the atomic number and the number of protons related to each other?
    7·1 answer
  • ASAP pleaseee and Thankyou​<br><br>​
    12·2 answers
  • Suppose you wanted to cause Pb2+ ions to come out of solution as solid Pb. Which metal(s) could you use to accomplish this? Au Z
    15·1 answer
  • When a stone is dipped in a glass containing some water, the level of water rises but when a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!