Recent questions in Chemistry

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In the reaction BaCO3 + 2HNO3 + Ba(NO3)2 + CO2 + H2O, what mass of Ba(NO3)2 can be formed by combining 55 g BaCO3 and 26 g HNO3

Ashwini Dhekane asked Aug 15, 2023

by Ashwini Dhekane

7.4k points

2 answers

21 votes

66.3k views

Please list uses uses aluminium?

Stivlo asked Aug 14, 2023

by Stivlo

8.1k points

2 answers

13 votes

39.3k views

PLEASE ASAP! 40 POINTS!!!!!!!!!!!

Serge Pedroza asked Aug 14, 2023

by Serge Pedroza

8.1k points

1 answer

1 vote

135k views

what is the number of atoms present in 6dm^3 of propane gas（C3H6）at room temperature and 1 atmosphere.

Polyclick asked Aug 14, 2023

by Polyclick

8.1k points

1 answer

1 vote

60.9k views

Danny lowers the sails on his boat. He paddles upstream at 19 km/hr. The current is still running downstream at 15 km/hr. What is the actual velocity of the boat? 34 km/hr, downstream 34 km/hr, upstream

Osa asked Aug 13, 2023

by Osa

7.7k points

1 answer

0 votes

147k views

Which element atom will form a SMALLER radius when it becomes an ion? Cl S P Mg

Remio asked Aug 12, 2023

by Remio

8.4k points

1 answer

3 votes

5.4k views

An ionic compound is composed of elements X and Y. X forms cations with a 3+ charge, while y forms anions with a 2- charge. What is the chemical formula for the ionic compound?

Ketan Ramani asked Aug 11, 2023

by Ketan Ramani

8.1k points

1 answer

3 votes

234k views

A 1 or 2 letter symbol that stands for the name of an element

Kirit Chandran asked Aug 11, 2023

by Kirit Chandran

7.4k points

1 answer

17 votes

115k views

How many moles are in 225 grams is NaCl

Deshawn asked Aug 10, 2023

by Deshawn

8.4k points

1 answer

18 votes

130k views

I NEED IT NOW john does 500 j of work in 2 seconds. eric does 1000 j of work in 4 seconds . who is more powerful and why

Mikpa asked Aug 10, 2023

by Mikpa

8.4k points

2 answers

5 votes

46.4k views

How do scientists use index fossils to determine the relative ages of rock layers in other locations? By comparing all the fossils in one rock layer they know the age of the fossil. By locating other areas

Wpkzz asked Aug 9, 2023

by Wpkzz

8.3k points

1 answer

1 vote

145k views

Which of these star phases is not in the life cycle of Sol? a nebula b main sequence c white dwarf d protostar

Abbas Bagheri asked Aug 9, 2023

by Abbas Bagheri

8.2k points

1 answer

12 votes

197k views

ASAP SnO2 (s) + 2 H2(g) → Sn (s) + 2 H2O (1) What mass of water is produce when 80.8g of SnO2 are consumed in the reaction above?

Ashok Kumar asked Aug 8, 2023

by Ashok Kumar

8.0k points

1 answer

4 votes

123k views

How do plants and animals differ in how they get food?

Szczepanpp asked Aug 8, 2023

by Szczepanpp

7.5k points

1 answer

2 votes

16.4k views

What does it mean when substances move "down a concentration gradient?"

KeithMahoney asked Aug 8, 2023

by KeithMahoney

7.9k points

1 answer

3 votes

88.4k views

The air we breathe is mostly a mixture of oxygen and hydrogen. How do air molecules change above 100 km? Gases are no longer evenly mixed but layered. The electrically charged ions in the ionosphere creates

Aysabzevar asked Aug 8, 2023

by Aysabzevar

8.5k points

2 answers

25 votes

119k views

If you have 10 protons and 11 neutrons, in a electrically neutral atom, How many electrons would you have?

Dmitriy Konovalov asked Aug 8, 2023

by Dmitriy Konovalov

8.5k points

1 answer

8 votes

112k views

Mitochondria provide ribosomes with

Dickie asked Aug 7, 2023

by Dickie

8.8k points

2 answers

23 votes

183k views

How do forces between particles affect the properties of materials

Carolina Faedo asked Aug 7, 2023

by Carolina Faedo

8.1k points

1 answer

25 votes

88.4k views

How many moles is 3.85 x 1025 atoms of gold?

TimoC asked Aug 7, 2023

by TimoC

7.6k points

1 answer

24 votes

220k views

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