subject
Chemistry, 01.09.2021 04:50 paul1963

Some metals cannot be welded in air because hot metal reacts with oxygen and nitrogen in the air. How do you think such metals are welded?

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 15:00
How has the scientific community addressed the safety of chemicals? a. chemicals are repeatedly tested, even those that have existed for a long time. b. existing chemicals are tested if they have never been tested before. c. chemicals are tested if they are suspected to have caused a problem. d. only new chemicals are tested.
Answers: 2
question
Chemistry, 21.06.2019 21:30
The density of an unknown gas at 98°c and 740 mmhg is 2.50 g/l. what is the molar mass of the gas with work showed?
Answers: 1
question
Chemistry, 22.06.2019 11:00
Freezing and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.
Answers: 1
question
Chemistry, 22.06.2019 12:20
The yearly amounts of carbon emissions from cars in belgium are normally distributed with a mean of 13.9 gigagrams per year and a standard deviation of 5.8 gigagrams per year. find the probability that the amount of carbon emissions from cars in belgium for a randomly selected year are between 11.5 gigagrams and 14.0 gigagrams per year. a. 0.340 b. 0.660 c. 0.167 d. 0.397
Answers: 2
You know the right answer?
Some metals cannot be welded in air because hot metal reacts with oxygen and nitrogen in the air. Ho...
Questions
question
Mathematics, 13.07.2021 01:00
question
Mathematics, 13.07.2021 01:00
question
Social Studies, 13.07.2021 01:00
Questions on the website: 13722363